XC3S50AN-4TQG144C

{
  "schema_version": 1,
  "type": "component",
  "slug": "xc3s50an-4tqg144c",
  "title": "XC3S50AN-4TQG144C",
  "brief": "XILINX CPLD/FPGA, TQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "xc3s50an-4tqg144c",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "XC3S50AN-4TQG144C",
    "manufacturer": "XILINX",
    "package": "TQFP-144(20x20)",
    "pin_count": 144,
    "category": "Embedded Processors & Controllers",
    "subcategory": "CPLD/FPGA",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d82cffc14960a26c57f30af5c47da63c.pdf",
    "parts": {
      "symbol": "xc3s50an-4tqg144c.kicad_sym",
      "footprint": "xc3s50an-4tqg144c.kicad_mod",
      "model_3d": "xc3s50an-4tqg144c-hero.glb",
      "model_3d_plain": "xc3s50an-4tqg144c-etched.glb",
      "model_3d_step": "xc3s50an-4tqg144c-etched.step",
      "model_3d_step_plain": "xc3s50an-4tqg144c.step",
      "lbr": "xc3s50an-4tqg144c.lbr"
    },
    "distributor_links": {
      "lcsc": "C95269",
      "digikey": "122-XC3S50AN-4TQG144C-ND",
      "mouser": "217-C3S50AN-4TQG144C"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:33:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "122-XC3S50AN-4TQG144C-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "217-C3S50AN-4TQG144C",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TMS",
        "type": "input",
        "description": "Dedicated JTAG test mode select pin, powered by VCCAUX."
      },
      {
        "number": "2",
        "name": "TDI",
        "type": "input",
        "description": "Dedicated JTAG test data input pin, powered by VCCAUX."
      },
      {
        "number": "3",
        "name": "IO_L02P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 02 positive."
      },
      {
        "number": "4",
        "name": "IO_L01P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 01 positive."
      },
      {
        "number": "5",
        "name": "IO_L02N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 02 negative."
      },
      {
        "number": "6",
        "name": "IO_L01N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 01 negative."
      },
      {
        "number": "7",
        "name": "IO_L03P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 03 positive."
      },
      {
        "number": "8",
        "name": "IO_L03N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 03 negative."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "10",
        "name": "IO_L04P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 04 positive."
      },
      {
        "number": "11",
        "name": "IO_L04N_3/VREF_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or reference voltage input for bank 3 (all VREF_3 pins must be connected if used)."
      },
      {
        "number": "12",
        "name": "IO_L05P_3/LHCLK0",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK0."
      },
      {
        "number": "13",
        "name": "IO_L05N_3/LHCLK1",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK1."
      },
      {
        "number": "14",
        "name": "VCCO_3",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 3; sets input threshold for some I/O standards."
      },
      {
        "number": "15",
        "name": "IO_L06P_3/LHCLK2",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK2."
      },
      {
        "number": "16",
        "name": "IO_L06N_3/IRDY2/LHCLK3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, PCI IRDY2 or left-half clock input LHCLK3."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "18",
        "name": "IO_L07P_3/LHCLK4",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK4."
      },
      {
        "number": "19",
        "name": "IO_L08P_3/TRDY2/LHCLK6",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, PCI TRDY2 or left-half clock input LHCLK6."
      },
      {
        "number": "20",
        "name": "IO_L07N_3/LHCLK5",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK5."
      },
      {
        "number": "21",
        "name": "IO_L08N_3/LHCLK7",
        "type": "bidirectional",
        "description": "Bank 3 user I/O or left-half clock input LHCLK7."
      },
      {
        "number": "22",
        "name": "VCCINT",
        "type": "power_in",
        "description": "Internal core logic supply, must be connected to +1.2V."
      },
      {
        "number": "23",
        "name": "VCCO_3",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 3; sets input threshold for some I/O standards."
      },
      {
        "number": "24",
        "name": "IO_L09P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 09 positive."
      },
      {
        "number": "25",
        "name": "IO_L09N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 09 negative."
      },
      {
        "number": "26",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "27",
        "name": "IO_L10P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 10 positive."
      },
      {
        "number": "28",
        "name": "IO_L11P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 11 positive."
      },
      {
        "number": "29",
        "name": "IO_L10N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 10 negative."
      },
      {
        "number": "30",
        "name": "IO_L11N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 11 negative."
      },
      {
        "number": "31",
        "name": "IO_L12P_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 12 positive."
      },
      {
        "number": "32",
        "name": "IO_L12N_3",
        "type": "bidirectional",
        "description": "Bank 3 user I/O, differential pair 12 negative."
      },
      {
        "number": "33",
        "name": "IP_L13P_3",
        "type": "input",
        "description": "Bank 3 input-only pin with no output structure, differential pair 13 positive."
      },
      {
        "number": "34",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "35",
        "name": "IP_L13N_3/VREF_3",
        "type": "input",
        "description": "Bank 3 input-only pin or reference voltage input for bank 3."
      },
      {
        "number": "36",
        "name": "VCCAUX",
        "type": "power_in",
        "description": "Auxiliary supply, must be connected to +3.3V; also powers the in-system Flash."
      },
      {
        "number": "37",
        "name": "IO_L01P_2/M1",
        "type": "bidirectional",
        "description": "Dual-purpose configuration mode select M1, then user I/O in bank 2."
      },
      {
        "number": "38",
        "name": "IO_L01N_2/M0",
        "type": "bidirectional",
        "description": "Dual-purpose configuration mode select M0, then user I/O in bank 2."
      },
      {
        "number": "39",
        "name": "IO_L02P_2/M2",
        "type": "bidirectional",
        "description": "Dual-purpose configuration mode select M2, then user I/O in bank 2."
      },
      {
        "number": "40",
        "name": "VCCO_2",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 2; sets input threshold for some I/O standards."
      },
      {
        "number": "41",
        "name": "IO_L02N_2/CSO_B",
        "type": "bidirectional",
        "description": "Dual-purpose configuration chip-select output CSO_B, then user I/O in bank 2."
      },
      {
        "number": "42",
        "name": "IO_L03P_2/RDWR_B",
        "type": "bidirectional",
        "description": "Dual-purpose Slave Parallel read/write control RDWR_B, then user I/O in bank 2."
      },
      {
        "number": "43",
        "name": "IO_L04P_2/VS2",
        "type": "bidirectional",
        "description": "Dual-purpose variant select VS2, then user I/O in bank 2."
      },
      {
        "number": "44",
        "name": "IO_L03N_2/VS1",
        "type": "bidirectional",
        "description": "Dual-purpose variant select VS1, then user I/O in bank 2."
      },
      {
        "number": "45",
        "name": "IO_L04N_2/VS0",
        "type": "bidirectional",
        "description": "Dual-purpose variant select VS0, then user I/O in bank 2."
      },
      {
        "number": "46",
        "name": "IO_L05P_2",
        "type": "bidirectional",
        "description": "Bank 2 user I/O, differential pair 05 positive."
      },
      {
        "number": "47",
        "name": "IO_L06P_2",
        "type": "bidirectional",
        "description": "Bank 2 user I/O, differential pair 06 positive."
      },
      {
        "number": "48",
        "name": "IO_L05N_2/D7",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D7, then user I/O in bank 2."
      },
      {
        "number": "49",
        "name": "IO_L06N_2/D6",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D6, then user I/O in bank 2."
      },
      {
        "number": "50",
        "name": "IO_L07P_2/D5",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D5, then user I/O in bank 2."
      },
      {
        "number": "51",
        "name": "IO_L07N_2/D4",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D4, then user I/O in bank 2."
      },
      {
        "number": "52",
        "name": "VCCINT",
        "type": "power_in",
        "description": "Internal core logic supply, must be connected to +1.2V."
      },
      {
        "number": "53",
        "name": "IP_2/VREF_2",
        "type": "input",
        "description": "Bank 2 input-only pin or reference voltage input for bank 2."
      },
      {
        "number": "54",
        "name": "IO_L08P_2/GCLK14",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK14."
      },
      {
        "number": "55",
        "name": "IO_L08N_2/GCLK15",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK15."
      },
      {
        "number": "56",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "57",
        "name": "IO_L09P_2/GCLK0",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK0."
      },
      {
        "number": "58",
        "name": "IO_L10P_2/GCLK2",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK2."
      },
      {
        "number": "59",
        "name": "IO_L09N_2/GCLK1",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK1."
      },
      {
        "number": "60",
        "name": "IO_L10N_2/GCLK3",
        "type": "bidirectional",
        "description": "Bank 2 user I/O or global clock input GCLK3."
      },
      {
        "number": "61",
        "name": "VCCO_2",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 2; sets input threshold for some I/O standards."
      },
      {
        "number": "62",
        "name": "IO_2/MOSI/CSI_B",
        "type": "bidirectional",
        "description": "Dual-purpose SPI MOSI / Slave Parallel chip select CSI_B, then user I/O in bank 2."
      },
      {
        "number": "63",
        "name": "IO_L11P_2/AWAKE",
        "type": "bidirectional",
        "description": "Suspend-mode status pin AWAKE; usable as user I/O unless Suspend mode is enabled."
      },
      {
        "number": "64",
        "name": "IO_L11N_2/DOUT",
        "type": "bidirectional",
        "description": "Dual-purpose serial configuration data output DOUT, then user I/O in bank 2."
      },
      {
        "number": "65",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "66",
        "name": "VCCAUX",
        "type": "power_in",
        "description": "Auxiliary supply, must be connected to +3.3V; also powers the in-system Flash."
      },
      {
        "number": "67",
        "name": "IO_L12P_2/INIT_B",
        "type": "bidirectional",
        "description": "Dual-purpose configuration initialization INIT_B, then user I/O in bank 2."
      },
      {
        "number": "68",
        "name": "IO_L12N_2/D3",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D3, then user I/O in bank 2."
      },
      {
        "number": "69",
        "name": "IO_L13P_2/D2",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D2, then user I/O in bank 2."
      },
      {
        "number": "70",
        "name": "IO_L14P_2/D1",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data bit D1, then user I/O in bank 2."
      },
      {
        "number": "71",
        "name": "IO_L13N_2/D0/DIN/MISO",
        "type": "bidirectional",
        "description": "Dual-purpose configuration data D0/DIN/MISO, then user I/O in bank 2."
      },
      {
        "number": "72",
        "name": "IO_L14N_2/CCLK",
        "type": "bidirectional",
        "description": "Dual-purpose configuration clock CCLK, then user I/O in bank 2."
      },
      {
        "number": "73",
        "name": "DONE",
        "type": "bidirectional",
        "description": "Dedicated configuration pin indicating configuration is finished, powered by VCCAUX."
      },
      {
        "number": "74",
        "name": "SUSPEND",
        "type": "input",
        "description": "Dedicated Suspend mode control pin, powered by VCCAUX."
      },
      {
        "number": "75",
        "name": "IO_L02P_1/LDC1",
        "type": "bidirectional",
        "description": "Dual-purpose configuration pin LDC1, then user I/O in bank 1."
      },
      {
        "number": "76",
        "name": "IO_L01P_1/HDC",
        "type": "bidirectional",
        "description": "Dual-purpose configuration pin HDC, then user I/O in bank 1."
      },
      {
        "number": "77",
        "name": "IO_L02N_1/LDC0",
        "type": "bidirectional",
        "description": "Dual-purpose configuration pin LDC0, then user I/O in bank 1."
      },
      {
        "number": "78",
        "name": "IO_L01N_1/LDC2",
        "type": "bidirectional",
        "description": "Dual-purpose configuration pin LDC2, then user I/O in bank 1."
      },
      {
        "number": "79",
        "name": "IO_1",
        "type": "bidirectional",
        "description": "Bank 1 unrestricted general-purpose user I/O."
      },
      {
        "number": "80",
        "name": "IP_1/VREF_1",
        "type": "input",
        "description": "Bank 1 input-only pin or reference voltage input for bank 1."
      },
      {
        "number": "81",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "82",
        "name": "IO_L03P_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 03 positive."
      },
      {
        "number": "83",
        "name": "IO_L04P_1/RHCLK0",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK0."
      },
      {
        "number": "84",
        "name": "IO_L03N_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 03 negative."
      },
      {
        "number": "85",
        "name": "IO_L04N_1/RHCLK1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK1."
      },
      {
        "number": "86",
        "name": "VCCO_1",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 1; sets input threshold for some I/O standards."
      },
      {
        "number": "87",
        "name": "IO_L05P_1/RHCLK2",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK2."
      },
      {
        "number": "88",
        "name": "IO_L05N_1/TRDY1/RHCLK3",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, PCI TRDY1 or right-half clock input RHCLK3."
      },
      {
        "number": "89",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "90",
        "name": "IO_L06P_1/RHCLK4",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK4."
      },
      {
        "number": "91",
        "name": "IO_L07P_1/IRDY1/RHCLK6",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, PCI IRDY1 or right-half clock input RHCLK6."
      },
      {
        "number": "92",
        "name": "IO_L06N_1/RHCLK5",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK5."
      },
      {
        "number": "93",
        "name": "IO_L07N_1/RHCLK7",
        "type": "bidirectional",
        "description": "Bank 1 user I/O or right-half clock input RHCLK7."
      },
      {
        "number": "94",
        "name": "VCCINT",
        "type": "power_in",
        "description": "Internal core logic supply, must be connected to +1.2V."
      },
      {
        "number": "95",
        "name": "VCCO_1",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 1; sets input threshold for some I/O standards."
      },
      {
        "number": "96",
        "name": "IO_L08P_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 08 positive."
      },
      {
        "number": "97",
        "name": "IP_1/VREF_1",
        "type": "input",
        "description": "Bank 1 input-only pin or reference voltage input for bank 1."
      },
      {
        "number": "98",
        "name": "IO_L08N_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 08 negative."
      },
      {
        "number": "99",
        "name": "IO_L09P_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 09 positive."
      },
      {
        "number": "100",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "101",
        "name": "IO_L09N_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 09 negative."
      },
      {
        "number": "102",
        "name": "IO_L10P_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 10 positive."
      },
      {
        "number": "103",
        "name": "IO_L11P_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 11 positive."
      },
      {
        "number": "104",
        "name": "IO_L10N_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 10 negative."
      },
      {
        "number": "105",
        "name": "IO_L11N_1",
        "type": "bidirectional",
        "description": "Bank 1 user I/O, differential pair 11 negative."
      },
      {
        "number": "106",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "107",
        "name": "TDO",
        "type": "output",
        "description": "Dedicated JTAG test data output pin, powered by VCCAUX."
      },
      {
        "number": "108",
        "name": "VCCAUX",
        "type": "power_in",
        "description": "Auxiliary supply, must be connected to +3.3V; also powers the in-system Flash."
      },
      {
        "number": "109",
        "name": "TCK",
        "type": "input",
        "description": "Dedicated JTAG test clock pin, powered by VCCAUX."
      },
      {
        "number": "110",
        "name": "IO_L01P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 01 positive."
      },
      {
        "number": "111",
        "name": "IO_L01N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 01 negative."
      },
      {
        "number": "112",
        "name": "IO_L02P_0/VREF_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or reference voltage input for bank 0."
      },
      {
        "number": "113",
        "name": "IO_L02N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 02 negative."
      },
      {
        "number": "114",
        "name": "IO_L04P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 04 positive."
      },
      {
        "number": "115",
        "name": "IO_L03P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 03 positive."
      },
      {
        "number": "116",
        "name": "IO_L04N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 04 negative."
      },
      {
        "number": "117",
        "name": "IO_L03N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 03 negative."
      },
      {
        "number": "118",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "119",
        "name": "VCCO_0",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 0; sets input threshold for some I/O standards."
      },
      {
        "number": "120",
        "name": "IO_L05P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 05 positive."
      },
      {
        "number": "121",
        "name": "IO_L05N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 05 negative."
      },
      {
        "number": "122",
        "name": "VCCINT",
        "type": "power_in",
        "description": "Internal core logic supply, must be connected to +1.2V."
      },
      {
        "number": "123",
        "name": "IP_0/VREF_0",
        "type": "input",
        "description": "Bank 0 input-only pin or reference voltage input for bank 0."
      },
      {
        "number": "124",
        "name": "IO_L06P_0/GCLK4",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK4."
      },
      {
        "number": "125",
        "name": "IO_L07P_0/GCLK6",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK6."
      },
      {
        "number": "126",
        "name": "IO_L06N_0/GCLK5",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK5."
      },
      {
        "number": "127",
        "name": "IO_L07N_0/GCLK7",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK7."
      },
      {
        "number": "128",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "129",
        "name": "IO_L08P_0/GCLK8",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK8."
      },
      {
        "number": "130",
        "name": "IO_L09P_0/GCLK10",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK10."
      },
      {
        "number": "131",
        "name": "IO_L08N_0/GCLK9",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK9."
      },
      {
        "number": "132",
        "name": "IO_L09N_0/GCLK11",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or global clock input GCLK11."
      },
      {
        "number": "133",
        "name": "VCCAUX",
        "type": "power_in",
        "description": "Auxiliary supply, must be connected to +3.3V; also powers the in-system Flash."
      },
      {
        "number": "134",
        "name": "IO_L10P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 10 positive."
      },
      {
        "number": "135",
        "name": "IO_L10N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 10 negative."
      },
      {
        "number": "136",
        "name": "VCCO_0",
        "type": "power_in",
        "description": "Output voltage supply for I/O bank 0; sets input threshold for some I/O standards."
      },
      {
        "number": "137",
        "name": "GND",
        "type": "power_in",
        "description": "Dedicated ground pin; all GND pins must be connected."
      },
      {
        "number": "138",
        "name": "IO_L11P_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 11 positive."
      },
      {
        "number": "139",
        "name": "IO_L11N_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O, differential pair 11 negative."
      },
      {
        "number": "140",
        "name": "IP_0",
        "type": "input",
        "description": "Bank 0 unrestricted general-purpose input-only pin."
      },
      {
        "number": "141",
        "name": "IO_L12P_0/VREF_0",
        "type": "bidirectional",
        "description": "Bank 0 user I/O or reference voltage input for bank 0."
      },
      {
        "number": "142",
        "name": "IO_0",
        "type": "bidirectional",
        "description": "Bank 0 unrestricted general-purpose user I/O."
      },
      {
        "number": "143",
        "name": "IO_L12N_0/PUDC_B",
        "type": "bidirectional",
        "description": "Dual-purpose pull-up during configuration control PUDC_B, then user I/O in bank 0."
      },
      {
        "number": "144",
        "name": "PROG_B",
        "type": "input",
        "description": "Dedicated configuration pin that initiates (re)configuration, powered by VCCAUX."
      }
    ],
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin directions for DONE, SUSPEND, AWAKE, and the multi-function configuration pins are assigned by f; Pin descriptions for dual-purpose configuration pins are summarised from pin names and Table 62. The",
          "55/144 pins cited to the wrong page (name found elsewhere): ['37:IO_L01P_2/M1@p75', '39:IO_L02P_2/M2@p75', '41:IO_L02N_2/CSO_B@p75', '44:IO_L03N_2/VS1@p75']"
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        "pages_sent": 66,
        "cost_usd": 1.0604,
        "at": "2026-10-23T03:32:23"
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        "pages": 123,
        "sha256": "4dea04fc9a722b3e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 144,
        "described": 144,
        "cites_pages": true,
        "refuses_to_fabricate": true
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      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "sha256": "04375074474c94e835558669f44d0989e234e983d3964161956a27bc675357d1",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xc3s50an-4tqg144c-etched.step",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "XILINX",
      "Package": "TQFP-144(20x20)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "144"
    },
    "characteristics": {
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      "rows": [
        {
          "name": "Internal supply voltage",
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          "kind": "absolute_maximum",
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          "max": 1.32,
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          "name": "Auxiliary supply voltage",
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        {
          "name": "Output driver supply voltage",
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          "name": "Voltage applied to all User I/O pins and dual-purpose pins",
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          "kind": "absolute_maximum",
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          "min": -0.95,
          "typ": null,
          "max": 4.6,
          "conditions": "Driver in a high-impedance state",
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          "source": "datasheet"
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        {
          "name": "Voltage applied to all Dedicated pins",
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          "kind": "absolute_maximum",
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          "typ": null,
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        {
          "name": "Input clamp current per I/O pin",
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          "conditions": "–0.5V < VIN < (VCCO + 0.5V); printed as ±100",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "ESD voltage, human body model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "Human body model",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "ESD voltage, charged device model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -500,
          "typ": null,
          "max": 500,
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          "source_page": 12,
          "source": "datasheet"
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        {
          "name": "ESD voltage, machine model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "Machine model",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
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          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature, Commercial",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 85,
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          "source_page": 14,
          "source": "datasheet"
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        {
          "name": "Internal supply voltage",
          "symbol": "VCCINT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.14,
          "typ": 1.2,
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        {
          "name": "Output driver supply voltage",
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          "kind": "recommended_operating",
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        {
          "name": "Auxiliary supply voltage",
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        {
          "name": "Input voltage, PCI IOSTANDARD",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "PCI IOSTANDARD; max printed as VCCO + 0.5",
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        {
          "name": "Input voltage, all other IOSTANDARDs",
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          "min": -0.5,
          "typ": null,
          "max": 4.1,
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          "name": "Input signal transition time",
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        {
          "name": "Threshold for VCCINT supply",
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          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": null,
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          "source_page": 13,
          "source": "datasheet"
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        {
          "name": "Threshold for VCCAUX supply",
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          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 2,
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          "source": "datasheet"
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        {
          "name": "Threshold for VCCO Bank 2 supply",
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          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 2,
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          "source_page": 13,
          "source": "datasheet"
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        {
          "name": "Ramp rate GND to valid VCCINT",
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          "min": 0.2,
          "typ": null,
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        {
          "name": "Ramp rate GND to valid VCCAUX",
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          "typ": null,
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          "source": "datasheet"
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        {
          "name": "VCCINT level to retain CCL and RAM data",
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          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "VCCAUX level to retain CCL and RAM data",
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          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Leakage current at User I/O, Input-only, Dual-Purpose and Dedicated pins",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Driver is in a high-impedance state, VIN = 0V or VCCO max, sample-tested",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Leakage current during hot socketing",
          "symbol": "IHS",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "All pins except INIT_B, PROG_B, DONE, and JTAG pins when PUDC_B = 1",
          "source_page": 15,
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        {
          "name": "Pull-up current",
          "symbol": "IRPU",
          "kind": "electrical",
          "unit": "µA",
          "min": -151,
          "typ": -315,
          "max": -710,
          "conditions": "VIN = GND, VCCO or VCCAUX = 3.0V to 3.6V",
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          "source": "datasheet"
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        {
          "name": "Equivalent pull-up resistor",
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          "source": "datasheet"
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          "name": "Pull-down current",
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          "kind": "electrical",
          "unit": "µA",
          "min": 167,
          "typ": 346,
          "max": 659,
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          "source": "datasheet"
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        {
          "name": "Equivalent pull-down resistor",
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          "unit": "kΩ",
          "min": 5.5,
          "typ": 10.4,
          "max": 20.8,
          "conditions": "VCCAUX = 3.0V to 3.6V, VIN = 3.0V to 3.6V",
          "source_page": 15,
          "source": "datasheet"
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        {
          "name": "VREF current per pin",
          "symbol": "IREF",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "All VCCO levels",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Input capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
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        {
          "name": "Differential termination resistance",
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          "unit": "Ω",
          "min": 90,
          "typ": 100,
          "max": 115,
          "conditions": "VCCO = 3.3V ± 10% LVDS_33, MINI_LVDS_33, RSDS_33",
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          "source": "datasheet"
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        {
          "name": "Quiescent VCCINT supply current",
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          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 20,
          "conditions": "XC3S50AN, Commercial maximum",
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          "source": "datasheet"
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          "name": "Quiescent VCCO supply current",
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          "conditions": "XC3S50AN, Commercial maximum",
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          "source": "datasheet"
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        {
          "name": "Quiescent VCCAUX supply current",
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          "kind": "electrical",
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          "typ": 3.1,
          "max": 8.1,
          "conditions": "XC3S50AN, Commercial maximum",
          "source_page": 16,
          "source": "datasheet"
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          "name": "Clock-to-output time with DCM, -4",
          "symbol": "TICKOFDCM",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 3.42,
          "conditions": "LVCMOS25, 12 mA output drive, Fast slew rate, with DCM, XC3S50AN",
          "source_page": 25,
          "source": "datasheet"
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        {
          "name": "Clock-to-output time without DCM, -4",
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          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 5.02,
          "conditions": "LVCMOS25, 12 mA output drive, Fast slew rate, without DCM, XC3S50AN",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Setup time with DCM, -4",
          "symbol": "TPSDCM",
          "kind": "timing",
          "unit": "ns",
          "min": 2.68,
          "typ": null,
          "max": null,
          "conditions": "LVCMOS25, IFD_DELAY_VALUE = 0, with DCM, XC3S50AN",
          "source_page": 26,
          "source": "datasheet"
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        {
          "name": "Setup time without DCM, -4",
          "symbol": "TPSFD",
          "kind": "timing",
          "unit": "ns",
          "min": 2.76,
          "typ": null,
          "max": null,
          "conditions": "LVCMOS25, IFD_DELAY_VALUE = 5, without DCM, XC3S50AN",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Hold time with DCM, -4",
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