DS14C89AMX

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  "slug": "ds14c89amx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments RS232 ICs, SOIC-14. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "interface",
    "ds14c89amx",
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    "docs/ds14c89amx-datasheet.pdf",
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  "component": {
    "mpn": "DS14C89AMX",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ds14c89a",
    "parts": {
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      "footprint": "ds14c89amx.kicad_mod",
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      "lbr": "ds14c89amx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2869644",
      "digikey": "DS14C89AMXTR-ND",
      "mouser": "926-DS14C89AMX"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T21:25:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "DS14C89AMXTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-DS14C89AMX",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Channel A EIA/TIA-232-E receiver input; accepts ±25 V signals; input threshold VTH 1.3-2.7 V, VTL 0.5-1.9 V; IIN up to ±8.3 mA at ±25 V."
      },
      {
        "number": "2",
        "name": "1C",
        "type": "passive",
        "description": "Channel A response-control pin; replaces external noise-filter capacitor of DS1489A; may be tied high, tied low, or left open (NC)."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "output",
        "description": "Channel A TTL/CMOS logic output; VOH min 2.8 V at −3.2 mA, VOL max 0.4 V at +3.2 mA; output high for open input (fail-safe)."
      },
      {
        "number": "4",
        "name": "2A",
        "type": "input",
        "description": "Channel B EIA/TIA-232-E receiver input; accepts ±25 V signals; input threshold VTH 1.3-2.7 V, VTL 0.5-1.9 V; IIN up to ±8.3 mA at ±25 V."
      },
      {
        "number": "5",
        "name": "2C",
        "type": "passive",
        "description": "Channel B response-control pin; replaces external noise-filter capacitor of DS1489A; may be tied high, tied low, or left open (NC)."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "output",
        "description": "Channel B TTL/CMOS logic output; VOH min 2.8 V at −3.2 mA, VOL max 0.4 V at +3.2 mA; output high for open input (fail-safe)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V)."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "output",
        "description": "Channel C TTL/CMOS logic output; VOH min 2.8 V at −3.2 mA, VOL max 0.4 V at +3.2 mA; output high for open input (fail-safe)."
      },
      {
        "number": "9",
        "name": "3C",
        "type": "passive",
        "description": "Channel C response-control pin; replaces external noise-filter capacitor of DS1489A; may be tied high, tied low, or left open (NC)."
      },
      {
        "number": "10",
        "name": "3A",
        "type": "input",
        "description": "Channel C EIA/TIA-232-E receiver input; accepts ±25 V signals; input threshold VTH 1.3-2.7 V, VTL 0.5-1.9 V; IIN up to ±8.3 mA at ±25 V."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "output",
        "description": "Channel D TTL/CMOS logic output; VOH min 2.8 V at −3.2 mA, VOL max 0.4 V at +3.2 mA; output high for open input (fail-safe)."
      },
      {
        "number": "12",
        "name": "4C",
        "type": "passive",
        "description": "Channel D response-control pin; replaces external noise-filter capacitor of DS1489A; may be tied high, tied low, or left open (NC)."
      },
      {
        "number": "13",
        "name": "4A",
        "type": "input",
        "description": "Channel D EIA/TIA-232-E receiver input; accepts ±25 V signals; input threshold VTH 1.3-2.7 V, VTL 0.5-1.9 V; IIN up to ±8.3 mA at ±25 V."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; recommended operating range +4.5 V to +5.5 V; absolute maximum +6 V; ICC max 900 µA (no load)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ds14c89a",
        "pages": 16,
        "sha256": "a0c9ff903402214a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": -0.0,
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}