TD322D485H-A

{
  "slug": "td322d485h-a",
  "version": "0.1.0",
  "type": "component",
  "description": "YLPTEC RS485 Bus Modules, DIP-12. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "iot-communication modules",
    "td322d485h-a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "td322d485h-a.kicad_sym",
    "td322d485h-a.kicad_mod",
    "td322d485h-a.glb",
    "td322d485h-a.step",
    "td322d485h-a.lbr",
    "docs/hero.png",
    "docs/td322d485h-a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "component": {
    "mpn": "TD322D485H-A",
    "manufacturer": "YLPTEC",
    "package": "DIP-12",
    "pin_count": 12,
    "category": "IoT/Communication Modules",
    "subcategory": "RS485 Bus Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603169889712820224",
    "parts": {
      "symbol": "td322d485h-a.kicad_sym",
      "footprint": "td322d485h-a.kicad_mod",
      "model_3d": "td322d485h-a-etched.glb",
      "model_3d_plain": "td322d485h-a.glb",
      "model_3d_step": "td322d485h-a-etched.step",
      "model_3d_step_plain": "td322d485h-a.step",
      "lbr": "td322d485h-a.lbr"
    },
    "distributor_links": {
      "lcsc": "C5451833"
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage positive, 3.15-3.45 VDC for TD322D485H-A model"
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Supply voltage ground reference"
      },
      {
        "number": "3",
        "name": "TXD1",
        "type": "input",
        "description": "Transmit data input for channel 1, accepts 3.3V UART logic levels"
      },
      {
        "number": "4",
        "name": "RXD1",
        "type": "output",
        "description": "Receive data output for channel 1, drives 3.3V UART logic levels"
      },
      {
        "number": "5",
        "name": "TXD2",
        "type": "input",
        "description": "Transmit data input for channel 2, accepts 3.3V UART logic levels"
      },
      {
        "number": "6",
        "name": "RXD2",
        "type": "output",
        "description": "Receive data output for channel 2, drives 3.3V UART logic levels"
      },
      {
        "number": "7",
        "name": "A2",
        "type": "bidirectional",
        "description": "RS-485 differential A signal for channel 2, common mode range -7V to +12V, input impedance 48 ohms"
      },
      {
        "number": "8",
        "name": "B2",
        "type": "bidirectional",
        "description": "RS-485 differential B signal for channel 2, common mode range -7V to +12V, input impedance 48 ohms"
      },
      {
        "number": "9",
        "name": "G2",
        "type": "power_in",
        "description": "Isolated power domain reference ground for channel 2, may be left floating if not used"
      },
      {
        "number": "10",
        "name": "A1",
        "type": "bidirectional",
        "description": "RS-485 differential A signal for channel 1, common mode range -7V to +12V, input impedance 48 ohms"
      },
      {
        "number": "11",
        "name": "B1",
        "type": "bidirectional",
        "description": "RS-485 differential B signal for channel 1, common mode range -7V to +12V, input impedance 48 ohms"
      },
      {
        "number": "12",
        "name": "G1",
        "type": "power_in",
        "description": "Isolated power domain reference ground for channel 1, may be left floating if not used"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-4-6",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pins 9 (G2) and 12 (G1) labeled as 'isolated power output ground' but module specification explicitl; Pin definitions table entries for pins 5 and 6 show '发送脚 1' and '接收脚 1' respectively in the descript"
        ],
        "pages_sent": 5,
        "cost_usd": 0.1862,
        "at": "2026-09-18T05:31:27"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603169889712820224",
        "pages": 5,
        "sha256": "e28d45acbfdca7ad",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 12,
        "described": 12,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "td322d485h-a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.62,
          15.24,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.127,
        "footprint_binding": "identity",
        "sha256": "d0d14c257dc175efde81c54c2e63e5477a3af152f96520f6884aa7b452ad9e53",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "td322d485h-a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.62,
          15.24,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.127,
        "footprint_binding": "identity",
        "sha256": "17a1fe2b6acc5e6ebf2e13c705e48f838fb5724cf0c281b8a3ee379ecd48e877",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}