TL16C2550RHBR

{
  "slug": "tl16c2550rhbr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments UART, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "tl16c2550rhbr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tl16c2550rhbr.kicad_sym",
    "tl16c2550rhbr.kicad_mod",
    "tl16c2550rhbr.glb",
    "tl16c2550rhbr.step",
    "tl16c2550rhbr.lbr",
    "docs/hero.png",
    "docs/tl16c2550rhbr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tl16c2550rhbr-hero.glb",
    "tl16c2550rhbr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TL16C2550RHBR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "UART",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tl16c2550",
    "parts": {
      "symbol": "tl16c2550rhbr.kicad_sym",
      "footprint": "tl16c2550rhbr.kicad_mod",
      "model_3d": "tl16c2550rhbr-hero.glb",
      "model_3d_plain": "tl16c2550rhbr.glb",
      "model_3d_step": "tl16c2550rhbr-etched.step",
      "model_3d_step_plain": "tl16c2550rhbr.step",
      "lbr": "tl16c2550rhbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2653222",
      "digikey": "TL16C2550RHBR-ND",
      "mouser": "595-TL16C2550RHBR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T01:27:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TL16C2550RHBR-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "595-TL16C2550RHBR",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "D6",
        "type": "bidirectional",
        "description": "Data bus bit 6 for 8-bit parallel CPU interface."
      },
      {
        "number": "2",
        "name": "D7",
        "type": "bidirectional",
        "description": "Data bus bit 7 for 8-bit parallel CPU interface."
      },
      {
        "number": "3",
        "name": "RXB",
        "type": "input",
        "description": "Serial receive data input for UART channel B."
      },
      {
        "number": "4",
        "name": "RXA",
        "type": "input",
        "description": "Serial receive data input for UART channel A."
      },
      {
        "number": "5",
        "name": "TXA",
        "type": "output",
        "description": "Serial transmit data output for UART channel A."
      },
      {
        "number": "6",
        "name": "TXB",
        "type": "output",
        "description": "Serial transmit data output for UART channel B."
      },
      {
        "number": "7",
        "name": "CSA",
        "type": "input",
        "description": "Active-low chip select for UART channel A enabling register access."
      },
      {
        "number": "8",
        "name": "CSB",
        "type": "input",
        "description": "Active-low chip select for UART channel B enabling register access."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "10",
        "name": "XTAL1",
        "type": "input",
        "description": "Crystal oscillator input or external clock input for frequencies 1 to 24 MHz."
      },
      {
        "number": "11",
        "name": "XTAL2",
        "type": "output",
        "description": "Crystal oscillator output or buffered external clock output."
      },
      {
        "number": "12",
        "name": "IOW",
        "type": "input",
        "description": "Write input (active-low strobe) transfers data bus contents to internal register."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground (0 V reference)."
      },
      {
        "number": "14",
        "name": "IOR",
        "type": "input",
        "description": "Read input (active-low strobe) loads internal register contents onto data bus."
      },
      {
        "number": "15",
        "name": "RTSB",
        "type": "output",
        "description": "Active-low request to send output for channel B hardware flow control."
      },
      {
        "number": "16",
        "name": "CTSB",
        "type": "input",
        "description": "Active-low clear to send input for channel B hardware flow control."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "18",
        "name": "A2",
        "type": "input",
        "description": "Address select bit 2 for internal register address selection."
      },
      {
        "number": "19",
        "name": "A1",
        "type": "input",
        "description": "Address select bit 1 for internal register address selection."
      },
      {
        "number": "20",
        "name": "A0",
        "type": "input",
        "description": "Address select bit 0 for internal register address selection."
      },
      {
        "number": "21",
        "name": "INTA",
        "type": "output",
        "description": "Active-high interrupt output for UART channel A."
      },
      {
        "number": "22",
        "name": "INTB",
        "type": "output",
        "description": "Active-high interrupt output for UART channel B."
      },
      {
        "number": "23",
        "name": "RTSA",
        "type": "output",
        "description": "Active-low request to send output for channel A hardware flow control."
      },
      {
        "number": "24",
        "name": "RESET",
        "type": "input",
        "description": "Active-high reset input clears all registers and disables transmitter and receiver."
      },
      {
        "number": "25",
        "name": "CTSA",
        "type": "input",
        "description": "Active-low clear to send input for channel A hardware flow control."
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply voltage (1.8 V to 5 V nominal)."
      },
      {
        "number": "27",
        "name": "D0",
        "type": "bidirectional",
        "description": "Data bus bit 0 (least significant bit) for parallel CPU interface."
      },
      {
        "number": "28",
        "name": "D1",
        "type": "bidirectional",
        "description": "Data bus bit 1 for parallel CPU interface."
      },
      {
        "number": "29",
        "name": "D2",
        "type": "bidirectional",
        "description": "Data bus bit 2 for parallel CPU interface."
      },
      {
        "number": "30",
        "name": "D3",
        "type": "bidirectional",
        "description": "Data bus bit 3 for parallel CPU interface."
      },
      {
        "number": "31",
        "name": "D4",
        "type": "bidirectional",
        "description": "Data bus bit 4 for parallel CPU interface."
      },
      {
        "number": "32",
        "name": "D5",
        "type": "bidirectional",
        "description": "Data bus bit 5 for parallel CPU interface."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pins 9 and 17 are not explicitly listed in PIN FUNCTIONS table for RHB package; inferred as NC based; RHB package omits 14 signals available in larger packages: DSRA, DSRB, RIA, RIB, CDA, CDB, OPA, OPB,",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 17,
        "cost_usd": 0.2525,
        "at": "2026-10-07T01:27:08"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tl16c2550",
        "pages": 49,
        "sha256": "27f2cc28a5ba3ac9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tl16c2550rhbr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tl16c2550rhbr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4c4b7a336cff326131f2bf37a4bc336b47f587c61b85380a9ede5ac638719cfb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}