MAX3243CDWR

{
  "slug": "max3243cdwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments RS232 ICs, SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "max3243cdwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "max3243cdwr.kicad_sym",
    "max3243cdwr.kicad_mod",
    "max3243cdwr.glb",
    "max3243cdwr.step",
    "max3243cdwr.lbr",
    "docs/hero.png",
    "docs/max3243cdwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "max3243cdwr-hero.glb",
    "max3243cdwr-hero.overlay.json"
  ],
  "component": {
    "mpn": "MAX3243CDWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/max3243",
    "parts": {
      "symbol": "max3243cdwr.kicad_sym",
      "footprint": "max3243cdwr.kicad_mod",
      "model_3d": "max3243cdwr-hero.glb",
      "model_3d_plain": "max3243cdwr.glb",
      "model_3d_step": "max3243cdwr-etched.step",
      "model_3d_step_plain": "max3243cdwr.step",
      "lbr": "max3243cdwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2671110",
      "digikey": "296-6942-2-ND",
      "mouser": "595-MAX3243CDWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T09:05:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-6942-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-MAX3243CDWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C2+",
        "type": "passive",
        "description": "Positive lead of the C2 charge-pump capacitor."
      },
      {
        "number": "2",
        "name": "C2-",
        "type": "passive",
        "description": "Negative lead of the C2 charge-pump capacitor."
      },
      {
        "number": "3",
        "name": "V-",
        "type": "power_out",
        "description": "Negative charge pump output, for the storage capacitor only."
      },
      {
        "number": "4",
        "name": "RIN1",
        "type": "input",
        "description": "RS232 line data input from the remote RS232 system (receiver input, ±25 V range, 3 to 7 kΩ input resistance)."
      },
      {
        "number": "5",
        "name": "RIN2",
        "type": "input",
        "description": "RS232 line data input from the remote RS232 system; also drives the always-active ROUT2B output (normally used for ring indicator)."
      },
      {
        "number": "6",
        "name": "RIN3",
        "type": "input",
        "description": "RS232 line data input from the remote RS232 system (receiver input, ±25 V range, 3 to 7 kΩ input resistance)."
      },
      {
        "number": "7",
        "name": "RIN4",
        "type": "input",
        "description": "RS232 line data input from the remote RS232 system (receiver input, ±25 V range, 3 to 7 kΩ input resistance)."
      },
      {
        "number": "8",
        "name": "RIN5",
        "type": "input",
        "description": "RS232 line data input from the remote RS232 system (receiver input, ±25 V range, 3 to 7 kΩ input resistance)."
      },
      {
        "number": "9",
        "name": "DOUT1",
        "type": "output",
        "description": "RS232 line data output to the remote RS232 system (±15 kV HBM ESD protected)."
      },
      {
        "number": "10",
        "name": "DOUT2",
        "type": "output",
        "description": "RS232 line data output to the remote RS232 system (±15 kV HBM ESD protected)."
      },
      {
        "number": "11",
        "name": "DOUT3",
        "type": "output",
        "description": "RS232 line data output to the remote RS232 system (±15 kV HBM ESD protected)."
      },
      {
        "number": "12",
        "name": "DIN3",
        "type": "input",
        "description": "Logic data input from the UART; must be driven to a valid high or low level."
      },
      {
        "number": "13",
        "name": "DIN2",
        "type": "input",
        "description": "Logic data input from the UART; must be driven to a valid high or low level."
      },
      {
        "number": "14",
        "name": "DIN1",
        "type": "input",
        "description": "Logic data input from the UART; must be driven to a valid high or low level."
      },
      {
        "number": "15",
        "name": "ROUT5",
        "type": "output",
        "description": "Logic data output to the UART; high-Z when FORCEOFF is low."
      },
      {
        "number": "16",
        "name": "ROUT4",
        "type": "output",
        "description": "Logic data output to the UART; high-Z when FORCEOFF is low."
      },
      {
        "number": "17",
        "name": "ROUT3",
        "type": "output",
        "description": "Logic data output to the UART; high-Z when FORCEOFF is low."
      },
      {
        "number": "18",
        "name": "ROUT2",
        "type": "output",
        "description": "Logic data output to the UART; high-Z when FORCEOFF is low."
      },
      {
        "number": "19",
        "name": "ROUT1",
        "type": "output",
        "description": "Logic data output to the UART; high-Z when FORCEOFF is low."
      },
      {
        "number": "20",
        "name": "ROUT2B",
        "type": "output",
        "description": "Always-active non-inverting output for RIN2, normally used for the ring indicator."
      },
      {
        "number": "21",
        "name": "INVALID",
        "type": "output",
        "description": "Active-low output when all RIN inputs are unpowered (between -0.3 V and 0.3 V for more than 30 µs)."
      },
      {
        "number": "22",
        "name": "FORCEOFF",
        "type": "input",
        "description": "Low input forces drivers and receivers (except ROUT2B) to high-Z and overrides FORCEON."
      },
      {
        "number": "23",
        "name": "FORCEON",
        "type": "input",
        "description": "High forces drivers on (disables auto-powerdown); low selects automatic mode."
      },
      {
        "number": "24",
        "name": "C1-",
        "type": "passive",
        "description": "Negative lead of the C1 charge-pump capacitor."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (±15 kV HBM ESD protected)."
      },
      {
        "number": "26",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, connect to a 3 V to 5.5 V power supply."
      },
      {
        "number": "27",
        "name": "V+",
        "type": "power_out",
        "description": "Positive charge pump output, for the storage capacitor only."
      },
      {
        "number": "28",
        "name": "C1+",
        "type": "passive",
        "description": "Positive lead of the C1 charge-pump capacitor."
      }
    ],
    "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 datasheet has no mechanical outline or pin-1 drawing for the DW (SOIC-28) package; the only outl; Figure 4-1 and Table 4-1 group the RIN, DOUT, DIN and ROUT pins by bus name (e.g. RIN1:RIN5 on pins ; The ERC type for the charge pump outputs (V- pin 3, V+ pin 27) is mapped to power_out from the datas"
        ],
        "pages_sent": 27,
        "cost_usd": 0.1204,
        "at": "2026-10-11T09:04:46"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/max3243",
        "pages": 27,
        "sha256": "21e5b8a04a566ebb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "max3243cdwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          17.9,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "max3243cdwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          17.9,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "96b3731b6eef82015854f2b8ec58c185710e0f49f1a3e69bea154efbf09e56d8",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}