PCI2050BPDV

{
  "slug": "pci2050bpdv",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Interface - Specialized, LQFP-208(28x28). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "pci2050bpdv",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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    "pci2050bpdv.step",
    "pci2050bpdv.lbr",
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    "docs/pci2050bpdv-datasheet.pdf",
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  "component": {
    "mpn": "PCI2050BPDV",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-208(28x28)",
    "pin_count": 208,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.ti.com/cn/lit/gpn/pci2050b",
    "parts": {
      "symbol": "pci2050bpdv.kicad_sym",
      "footprint": "pci2050bpdv.kicad_mod",
      "model_3d": "pci2050bpdv-hero.glb",
      "model_3d_plain": "pci2050bpdv.glb",
      "model_3d_step": "pci2050bpdv-etched.step",
      "model_3d_step_plain": "pci2050bpdv.step",
      "lbr": "pci2050bpdv.lbr"
    },
    "distributor_links": {
      "lcsc": "C544853",
      "digikey": "296-14347-ND",
      "mouser": "595-PCI2050BPDV"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T04:03:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14347-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "595-PCI2050BPDV",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "2",
        "name": "S_REQ1",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 1; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "3",
        "name": "S_REQ2",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 2; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "4",
        "name": "S_REQ3",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 3; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "5",
        "name": "S_REQ4",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 4; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "6",
        "name": "S_REQ5",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 5; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "7",
        "name": "S_REQ6",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 6; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "8",
        "name": "S_REQ7",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 7; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "9",
        "name": "S_REQ8",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 8; the bridge internal arbiter uses it, and up to ten masters including the bridge can be on the secondary bus."
      },
      {
        "number": "10",
        "name": "S_GNT0",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "11",
        "name": "S_GNT1",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "13",
        "name": "S_GNT2",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "14",
        "name": "S_GNT3",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "15",
        "name": "S_GNT4",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "16",
        "name": "S_GNT5",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "17",
        "name": "S_GNT6",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "18",
        "name": "S_GNT7",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "19",
        "name": "S_GNT8",
        "type": "output",
        "description": "Secondary PCI bus grant output; function not stated in the provided excerpt (signal name from Table 2-1)."
      },
      {
        "number": "20",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "21",
        "name": "S_CLK",
        "type": "input",
        "description": "Secondary PCI bus clock input; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "22",
        "name": "S_RST",
        "type": "input",
        "description": "Secondary PCI bus reset; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "23",
        "name": "S_CFN",
        "type": "input",
        "description": "Secondary configuration-function signal; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "24",
        "name": "HS_SWITCH/GPIO3",
        "type": "input",
        "description": "General-purpose I/O 3; in cPCI mode it is HS_SWITCH, which provides the status of the ejector handle switch to the cPCI logic."
      },
      {
        "number": "25",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose I/O terminal; no further detail given in the provided excerpt."
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "27",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O terminal; no further detail given in the provided excerpt."
      },
      {
        "number": "28",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O terminal; no further detail given in the provided excerpt."
      },
      {
        "number": "29",
        "name": "S_CLKOUT0",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "30",
        "name": "S_CLKOUT1",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "31",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "32",
        "name": "S_CLKOUT2",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "33",
        "name": "S_CLKOUT3",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "34",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "35",
        "name": "S_CLKOUT4",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "36",
        "name": "S_CLKOUT5",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "37",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "38",
        "name": "S_CLKOUT6",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "39",
        "name": "S_CLKOUT7",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "40",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "41",
        "name": "S_CLKOUT8",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "42",
        "name": "S_CLKOUT9",
        "type": "output",
        "description": "Secondary PCI bus clock output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "43",
        "name": "P_RST",
        "type": "input",
        "description": "Primary PCI bus reset; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "44",
        "name": "BPCCE",
        "type": "input",
        "description": "Bus/power clock control enable; when tied high and the device is in D3, the secondary clocks are disabled and driven to 0 to allow the secondary bus to enter B2, and when tied low D3 has no effect on secondary clocks."
      },
      {
        "number": "45",
        "name": "P_CLK",
        "type": "input",
        "description": "Primary PCI bus clock input; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "46",
        "name": "P_GNT",
        "type": "input",
        "description": "Primary PCI bus grant input; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "47",
        "name": "P_REQ",
        "type": "output",
        "description": "Primary PCI bus request output; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "48",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "49",
        "name": "P_AD31",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 31; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "50",
        "name": "P_AD30",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 30; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "51",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "52",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "53",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "54",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "55",
        "name": "P_AD29",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 29; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "56",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "57",
        "name": "P_AD28",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 28; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "58",
        "name": "P_AD27",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 27; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "59",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "60",
        "name": "P_AD26",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 26; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "61",
        "name": "P_AD25",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 25; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "62",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "63",
        "name": "P_AD24",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 24; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "64",
        "name": "P_C/BE3",
        "type": "bidirectional",
        "description": "Primary PCI command/byte enable 3; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "65",
        "name": "P_IDSEL",
        "type": "input",
        "description": "Primary PCI initialization device select; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "66",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "67",
        "name": "P_AD23",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 23; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "68",
        "name": "P_AD22",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 22; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "69",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "70",
        "name": "P_AD21",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 21; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "71",
        "name": "P_AD20",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 20; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "72",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "73",
        "name": "P_AD19",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 19; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "74",
        "name": "P_AD18",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 18; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "75",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "76",
        "name": "P_AD17",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 17; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "77",
        "name": "P_AD16",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 16; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "78",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "79",
        "name": "P_C/BE2",
        "type": "bidirectional",
        "description": "Primary PCI command/byte enable 2; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "80",
        "name": "P_FRAME",
        "type": "bidirectional",
        "description": "Primary PCI cycle frame; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "81",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "82",
        "name": "P_IRDY",
        "type": "bidirectional",
        "description": "Primary PCI initiator ready; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "83",
        "name": "P_TRDY",
        "type": "bidirectional",
        "description": "Primary PCI target ready; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "84",
        "name": "P_DEVSEL",
        "type": "bidirectional",
        "description": "Primary PCI device select; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "85",
        "name": "P_STOP",
        "type": "bidirectional",
        "description": "Primary PCI cycle stop; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "86",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "87",
        "name": "P_LOCK",
        "type": "bidirectional",
        "description": "Primary PCI bus lock; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "88",
        "name": "P_PERR",
        "type": "bidirectional",
        "description": "Primary PCI parity error indicator; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "89",
        "name": "P_SERR",
        "type": "bidirectional",
        "description": "Primary PCI system error; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "90",
        "name": "P_PAR",
        "type": "bidirectional",
        "description": "Primary PCI parity; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "91",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "92",
        "name": "P_C/BE1",
        "type": "bidirectional",
        "description": "Primary PCI command/byte enable 1; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "93",
        "name": "P_AD15",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 15; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "94",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "95",
        "name": "P_AD14",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 14; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "96",
        "name": "P_AD13",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 13; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "97",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "98",
        "name": "P_AD12",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 12; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "99",
        "name": "P_AD11",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 11; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "100",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "101",
        "name": "P_AD10",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 10; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "102",
        "name": "P_M66ENA",
        "type": "input",
        "description": "Primary interface 66 MHz enable, input-only; must be pulled low for 33-MHz primary operation (which forces the secondary bus to 33 MHz) and pulled high for 66-MHz operation."
      },
      {
        "number": "103",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "104",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "105",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "106",
        "name": "MS1",
        "type": "input",
        "description": "Mode select 1 input; the provided excerpt names the pin but does not give its detailed function."
      },
      {
        "number": "107",
        "name": "P_AD9",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 9; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "108",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "109",
        "name": "P_AD8",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 8; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "110",
        "name": "P_C/BE0",
        "type": "bidirectional",
        "description": "Primary PCI command/byte enable 0; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "111",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "112",
        "name": "P_AD7",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 7; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "113",
        "name": "P_AD6",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 6; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "114",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "115",
        "name": "P_AD5",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 5; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "116",
        "name": "P_AD4",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 4; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "117",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "118",
        "name": "P_AD3",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 3; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "119",
        "name": "P_AD2",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 2; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "120",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "121",
        "name": "P_AD1",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 1; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "122",
        "name": "P_AD0",
        "type": "bidirectional",
        "description": "Primary PCI address/data bit 0; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "123",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "124",
        "name": "P_VCCP",
        "type": "power_in",
        "description": "Primary bus-signaling environment supply used in protection circuitry on primary bus I/O signals; TI recommends powering P_VCCP and S_VCCP up before VCC."
      },
      {
        "number": "125",
        "name": "CONFIG66",
        "type": "input",
        "description": "Input-only configuration of 66 MHz capability; tied high allows 66 MHz operation, tied low restricts the device to 33-MHz PCI operation."
      },
      {
        "number": "126",
        "name": "MSK_IN",
        "type": "input",
        "description": "Secondary clock mask input; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "127",
        "name": "HS_ENUM",
        "type": "output",
        "description": "Hot-swap ENUM output."
      },
      {
        "number": "128",
        "name": "HS_LED",
        "type": "output",
        "description": "Hot-swap LED output."
      },
      {
        "number": "129",
        "name": "TDI",
        "type": "input",
        "description": "JTAG serial data input; instructions and test data enter here and are sampled on the rising edge of TCK."
      },
      {
        "number": "130",
        "name": "TDO",
        "type": "output",
        "description": "JTAG serial data output through which test instructions and data leave the device."
      },
      {
        "number": "131",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "132",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select; causes state transitions in the test access port controller."
      },
      {
        "number": "133",
        "name": "TCK",
        "type": "input",
        "description": "JTAG boundary-scan clock that controls the JTAG logic."
      },
      {
        "number": "134",
        "name": "TRST",
        "type": "input",
        "description": "JTAG TAP reset; when asserted low it asynchronously forces the TAP controller into reset and initializes the test logic."
      },
      {
        "number": "135",
        "name": "S_VCCP",
        "type": "power_in",
        "description": "Secondary bus-signaling environment supply used in protection circuitry on secondary bus I/O signals; TI recommends powering S_VCCP up before VCC."
      },
      {
        "number": "136",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "137",
        "name": "S_AD0",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 0; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "138",
        "name": "S_AD1",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 1; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "139",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "140",
        "name": "S_AD2",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 2; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "141",
        "name": "S_AD3",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 3; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "142",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "143",
        "name": "S_AD4",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 4; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "144",
        "name": "S_AD5",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 5; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "145",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "146",
        "name": "S_AD6",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 6; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "147",
        "name": "S_AD7",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 7; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "148",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "149",
        "name": "S_C/BE0",
        "type": "bidirectional",
        "description": "Secondary PCI command/byte enable 0; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "150",
        "name": "S_AD8",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 8; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "151",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "152",
        "name": "S_AD9",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 9; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "153",
        "name": "S_M66ENA",
        "type": "bidirectional",
        "description": "Secondary 66 MHz enable, open-drain; driven low by the device when P_M66ENA is low, and when the primary bus runs at 66 MHz it must be pulled high for 66-MHz or low for 33-MHz secondary operation."
      },
      {
        "number": "154",
        "name": "S_AD10",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 10; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "155",
        "name": "MS0",
        "type": "input",
        "description": "Mode select 0 input; the provided excerpt names the pin but does not give its detailed function."
      },
      {
        "number": "156",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "157",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "158",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "159",
        "name": "S_AD11",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 11; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "160",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "161",
        "name": "S_AD12",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 12; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "162",
        "name": "S_AD13",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 13; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "163",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "164",
        "name": "S_AD14",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 14; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "165",
        "name": "S_AD15",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 15; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "166",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "167",
        "name": "S_C/BE1",
        "type": "bidirectional",
        "description": "Secondary PCI command/byte enable 1; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "168",
        "name": "S_PAR",
        "type": "bidirectional",
        "description": "Secondary parity; the bridge calculates even parity across S_AD and S_C/BE in all secondary read and write cycles, driving it one S_CLK later as master on writes."
      },
      {
        "number": "169",
        "name": "S_SERR",
        "type": "input",
        "description": "Secondary system error, passed through to the primary interface when enabled; the bridge never asserts it."
      },
      {
        "number": "170",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "171",
        "name": "S_PERR",
        "type": "bidirectional",
        "description": "Secondary parity error indicator, driven by a secondary device when calculated parity does not match S_PAR and it is enabled in the command register."
      },
      {
        "number": "172",
        "name": "S_LOCK",
        "type": "bidirectional",
        "description": "Secondary PCI bus lock used to lock the secondary bus and gain exclusive access as a master."
      },
      {
        "number": "173",
        "name": "S_STOP",
        "type": "bidirectional",
        "description": "Secondary cycle stop signal driven by a PCI target to request that the master stop the current transaction (used for target disconnects)."
      },
      {
        "number": "174",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "175",
        "name": "S_DEVSEL",
        "type": "bidirectional",
        "description": "Secondary device select; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "176",
        "name": "S_TRDY",
        "type": "bidirectional",
        "description": "Secondary target ready; a data phase completes on a rising S_CLK edge when S_IRDY and S_TRDY are both asserted, with wait states inserted until then."
      },
      {
        "number": "177",
        "name": "S_IRDY",
        "type": "bidirectional",
        "description": "Secondary initiator ready; a data phase completes on a rising S_CLK edge when S_IRDY and S_TRDY are both asserted, with wait states inserted until then."
      },
      {
        "number": "178",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "179",
        "name": "S_FRAME",
        "type": "bidirectional",
        "description": "Secondary cycle frame; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "180",
        "name": "S_C/BE2",
        "type": "bidirectional",
        "description": "Secondary PCI command/byte enable 2; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "181",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "182",
        "name": "S_AD16",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 16; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "183",
        "name": "S_AD17",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 17; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "184",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "185",
        "name": "S_AD18",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 18; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "186",
        "name": "S_AD19",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 19; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "187",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "188",
        "name": "S_AD20",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 20; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "189",
        "name": "S_AD21",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 21; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "190",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "191",
        "name": "S_AD22",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 22; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "192",
        "name": "S_AD23",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 23; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "193",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "194",
        "name": "S_C/BE3",
        "type": "bidirectional",
        "description": "Secondary PCI command/byte enable 3; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "195",
        "name": "S_AD24",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 24; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "196",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "197",
        "name": "S_AD25",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 25; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "198",
        "name": "S_AD26",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 26; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "199",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "200",
        "name": "S_AD27",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 27; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "201",
        "name": "S_AD28",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 28; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "202",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      },
      {
        "number": "203",
        "name": "S_AD29",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 29; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "204",
        "name": "S_AD30",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 30; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "205",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal."
      },
      {
        "number": "206",
        "name": "S_AD31",
        "type": "bidirectional",
        "description": "Secondary PCI address/data bit 31; function not stated in the provided excerpt beyond the signal name."
      },
      {
        "number": "207",
        "name": "S_REQ0",
        "type": "input",
        "description": "Secondary PCI bus request input from secondary master 0; when the internal arbiter is disabled this pin is reconfigured as an external secondary bus grant for the bridge."
      },
      {
        "number": "208",
        "name": "VCC",
        "type": "power_in",
        "description": "Power-supply terminal for core logic (3.3 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package scope: the PDV pinout is taken from Table 2-1 and Figure 2-2 (208-terminal PDV LQFP). The 28; Lifecycle: the TI Package Option Addendum lists PCI2050BPDV as Obsolete (Call TI, 0 to 70 C). The PP; Excerpt gaps: pin functions and I/O types are given only for terminals in Tables 2-12 to 2-15 (pages"
        ],
        "pages_sent": 15,
        "cost_usd": 0.224,
        "at": "2026-10-08T04:02:08"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/pci2050b",
        "pages": 89,
        "sha256": "879d9875d1ecefb1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 208,
        "described": 208,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pci2050bpdv.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          30.0,
          30.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e3717f35ab17b7b1224af915b854103d4ab8675b952348f37773a9bee5c7a38e",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pci2050bpdv-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          30.0,
          30.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "66c4ce99d80491daa7d0f05e25103ab1d325a308e4432d688c1c75e7f5958054",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}