TL16C550DPFBR

{
  "slug": "tl16c550dpfbr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments UART, TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "tl16c550dpfbr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "TL16C550DPFBR",
    "manufacturer": "Texas Instruments",
    "package": "TQFP-48(7x7)",
    "pin_count": 48,
    "category": "Interface",
    "subcategory": "UART",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tl16c550d",
    "parts": {
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      "footprint": "tl16c550dpfbr.kicad_mod",
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      "lbr": "tl16c550dpfbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2653243",
      "digikey": "296-TL16C550DPFBRTR-ND",
      "mouser": "595-TL16C550DPFBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:47:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TL16C550DPFBRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TL16C550DPFBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "2",
        "name": "D5",
        "type": "bidirectional",
        "description": "Data bus bit 5 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "3",
        "name": "D6",
        "type": "bidirectional",
        "description": "Data bus bit 6 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "4",
        "name": "D7",
        "type": "bidirectional",
        "description": "Data bus bit 7 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "5",
        "name": "RCLK",
        "type": "input",
        "description": "Receiver clock, the 16x baud rate clock for the receiver section of the ACE."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "7",
        "name": "SIN",
        "type": "input",
        "description": "Serial data input from the connected communications device."
      },
      {
        "number": "8",
        "name": "SOUT",
        "type": "output",
        "description": "Composite serial data output to the connected communication device; set to the marking (high) level by master reset."
      },
      {
        "number": "9",
        "name": "CS0",
        "type": "input",
        "description": "Chip select 0; with CS1 high and CS2 low it selects the ACE, and when inactive the ACE remains inactive."
      },
      {
        "number": "10",
        "name": "CS1",
        "type": "input",
        "description": "Chip select 1; with CS0 high and CS2 low it selects the ACE, and when inactive the ACE remains inactive."
      },
      {
        "number": "11",
        "name": "CS2",
        "type": "input",
        "description": "Chip select 2; with CS0 and CS1 high and CS2 low the ACE is selected, and when inactive the ACE remains inactive."
      },
      {
        "number": "12",
        "name": "BAUDOUT",
        "type": "output",
        "description": "16x transmitter clock output set by the baud generator divisor; can be tied to RCLK to clock the receiver."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "14",
        "name": "XIN",
        "type": "bidirectional",
        "description": "External clock input; XIN and XOUT connect the ACE to the main timing reference (clock or crystal)."
      },
      {
        "number": "15",
        "name": "XOUT",
        "type": "bidirectional",
        "description": "Crystal/oscillator output; XIN and XOUT connect the ACE to the main timing reference (clock or crystal)."
      },
      {
        "number": "16",
        "name": "WR1",
        "type": "input",
        "description": "Write input 1; when active (low) with the ACE selected, the CPU writes control words or data into the ACE."
      },
      {
        "number": "17",
        "name": "WR2",
        "type": "input",
        "description": "Write input 2; when active (high) with the ACE selected, the CPU writes control words or data into the ACE; tie to its inactive level (low) if unused."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Supply common (ground) for the device."
      },
      {
        "number": "19",
        "name": "RD1",
        "type": "input",
        "description": "Read input 1; when active (low) with the ACE selected, the CPU reads status or data from the selected ACE register."
      },
      {
        "number": "20",
        "name": "RD2",
        "type": "input",
        "description": "Read input 2; when active (high) with the ACE selected, the CPU reads status or data; tie to its inactive level (low) if unused."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "22",
        "name": "DDIS",
        "type": "output",
        "description": "Driver disable; active (high) when the CPU is not reading data, and can disable an external transceiver."
      },
      {
        "number": "23",
        "name": "TXRDY",
        "type": "output",
        "description": "Transmitter DMA ready signal; in DMA mode 0 it signals single transfers, in mode 1 multiple transfers until the transmit FIFO is full."
      },
      {
        "number": "24",
        "name": "ADS",
        "type": "input",
        "description": "Address strobe; when active (low) A0-A2 and CS0-CS2 drive the select logic directly, and when high the register and chip select levels are held."
      },
      {
        "number": "25",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "26",
        "name": "A2",
        "type": "input",
        "description": "Register select bit 2; selects the ACE register for read and write operations (see Table 1 and ADS)."
      },
      {
        "number": "27",
        "name": "A1",
        "type": "input",
        "description": "Register select bit 1; selects the ACE register for read and write operations (see Table 1 and ADS)."
      },
      {
        "number": "28",
        "name": "A0",
        "type": "input",
        "description": "Register select bit 0; selects the ACE register for read and write operations (see Table 1 and ADS)."
      },
      {
        "number": "29",
        "name": "RXRDY",
        "type": "output",
        "description": "Receiver DMA ready signal; active (low) when characters are available in the FIFO or holding register, with mode 0 or mode 1 selected by FCR3."
      },
      {
        "number": "30",
        "name": "INTRPT",
        "type": "output",
        "description": "Interrupt output; active (high) to tell the CPU the ACE has an interrupt to be serviced, cleared on service or master reset."
      },
      {
        "number": "31",
        "name": "OUT2",
        "type": "output",
        "description": "User-designated output 2, forced low when MCR bit 3 is set and high when cleared; high after master reset."
      },
      {
        "number": "32",
        "name": "RTS",
        "type": "output",
        "description": "Request to send; active when set by the RTS MCR bit, inactive (high) after master reset, and driven by receiver threshold logic in auto-RTS mode."
      },
      {
        "number": "33",
        "name": "DTR",
        "type": "output",
        "description": "Data terminal ready; active (low) when the DTR MCR bit is set, and inactive (high) after master reset, loop mode or clearing the bit."
      },
      {
        "number": "34",
        "name": "OUT1",
        "type": "output",
        "description": "User-designated output 1, forced low when MCR bit 2 is set and high when cleared; high after master reset."
      },
      {
        "number": "35",
        "name": "MR",
        "type": "input",
        "description": "Master reset; when active (high) it clears most ACE registers and sets the levels of various output signals."
      },
      {
        "number": "36",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "37",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      },
      {
        "number": "38",
        "name": "CTS",
        "type": "input",
        "description": "Clear to send modem status input; controls the transmitter in auto-CTS mode and raises an interrupt on change when auto-CTS is off."
      },
      {
        "number": "39",
        "name": "DSR",
        "type": "input",
        "description": "Data set ready modem status input; its state is read via MSR bit 5 and a change can raise a modem status interrupt."
      },
      {
        "number": "40",
        "name": "DCD",
        "type": "input",
        "description": "Data carrier detect modem status input; its state is read via MSR bit 7 and a change can raise a modem status interrupt."
      },
      {
        "number": "41",
        "name": "RI",
        "type": "input",
        "description": "Ring indicator modem status input; its state is read via MSR bit 6 and a low-to-high transition sets TERI."
      },
      {
        "number": "42",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 2.25 V to 5.5 V."
      },
      {
        "number": "43",
        "name": "D0",
        "type": "bidirectional",
        "description": "Data bus bit 0 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "44",
        "name": "D1",
        "type": "bidirectional",
        "description": "Data bus bit 1 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "45",
        "name": "D2",
        "type": "bidirectional",
        "description": "Data bus bit 2 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "46",
        "name": "D3",
        "type": "bidirectional",
        "description": "Data bus bit 3 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "47",
        "name": "D4",
        "type": "bidirectional",
        "description": "Data bus bit 4 of the eight 3-state data lines that carry data, control and status between the ACE and the CPU."
      },
      {
        "number": "48",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave unconnected."
      }
    ],
    "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: The PT/PFB pin diagram in the extracted text is garbled, so the pin-to-number mapping was taken from; The 7x7 mm body size is from the package hint only; the extracted text does not state the package di; Pin 1 and pins 6, 13, 21, 25, 36, 37 and 48 are listed as NC (no internal connection) in the PT/PFB "
        ],
        "pages_sent": 18,
        "cost_usd": 0.1446,
        "at": "2026-10-08T15:46:50"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tl16c550d",
        "pages": 60,
        "sha256": "a49ab32dac5b1c13",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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}