main
Ray Set visibility: public d17df9f 3d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "am26ls31cdbr",
  "title": "AM26LS31CDBR",
  "brief": "Texas Instruments RS-485/RS-422 ICs, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "interface ics",
    "am26ls31cdbr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "AM26LS31CDBR",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-16-208mil",
    "pin_count": 16,
    "category": "Interface ICs",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://www.ti.com/lit/ds/symlink/am26ls31cdbr.pdf",
    "parts": {
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      "model_3d_plain": "am26ls31cdbr-etched.glb",
      "model_3d_step": "am26ls31cdbr-etched.step",
      "model_3d_step_plain": "am26ls31cdbr.step",
      "lbr": "am26ls31cdbr.lbr"
    },
    "distributor_links": {
      "lcsc": "C117477",
      "digikey": "296-31470-2-ND",
      "mouser": "595-AM26LS31CDBR"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T00:37:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-31470-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-AM26LS31CDBR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1A",
        "type": "input",
        "description": "Logic data input to RS-422 driver number 1."
      },
      {
        "number": "2",
        "name": "1Y",
        "type": "tri_state",
        "description": "RS-422 data line (true output) of driver 1, 3-state and high impedance in power-off condition."
      },
      {
        "number": "3",
        "name": "1Z",
        "type": "tri_state",
        "description": "RS-422 data line (complementary output) of driver 1, 3-state and high impedance in power-off condition."
      },
      {
        "number": "4",
        "name": "G",
        "type": "input",
        "description": "Driver enable input, active high, common to all four drivers."
      },
      {
        "number": "5",
        "name": "2Z",
        "type": "tri_state",
        "description": "RS-422 data line (complementary output) of driver 2, 3-state and high impedance in power-off condition."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "tri_state",
        "description": "RS-422 data line (true output) of driver 2, 3-state and high impedance in power-off condition."
      },
      {
        "number": "7",
        "name": "2A",
        "type": "input",
        "description": "Logic data input to RS-422 driver number 2."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground pin (per package drawing; the pin table lists this function at pin 16)."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Logic data input to RS-422 driver number 3."
      },
      {
        "number": "10",
        "name": "3Y",
        "type": "tri_state",
        "description": "RS-422 data line (true output) of driver 3, 3-state and high impedance in power-off condition."
      },
      {
        "number": "11",
        "name": "3Z",
        "type": "tri_state",
        "description": "RS-422 data line (complementary output) of driver 3, 3-state and high impedance in power-off condition."
      },
      {
        "number": "12",
        "name": "~{G}",
        "type": "input",
        "description": "Driver enable input, active low, common to all four drivers."
      },
      {
        "number": "13",
        "name": "4Z",
        "type": "tri_state",
        "description": "RS-422 data line (complementary output) of driver 4, 3-state and high impedance in power-off condition."
      },
      {
        "number": "14",
        "name": "4Y",
        "type": "tri_state",
        "description": "RS-422 data line (true output) of driver 4, 3-state and high impedance in power-off condition."
      },
      {
        "number": "15",
        "name": "4A",
        "type": "input",
        "description": "Logic data input to RS-422 driver number 4."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Power input, connect to 5-V power source (4.75 V to 5.25 V recommended for AM26LS31C, 7 V absolute maximum); the pin table lists this function at pin 8."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-11-07T00:37:17"
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        "pages": 28,
        "sha256": "382fd2e59c5166d5",
        "source_tier": "mfr"
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        "described": 16,
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        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-11-07",
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        "sha256": "dcb26c826c49022f78519011aae43c25e54143e4e25383e9383a82d59a205ed3",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SSOP-16-208mil",
      "Category": "Interface ICs",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "382fd2e59c5166d56c38d85b0e1290c107d391f9ce73f062c527dec390ff48ec",
      "rows": [
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          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
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          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output off-state voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Lead temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "1,6 mm (1/16 in) from case for 10 s",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "AM26LS31C",
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        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "AM26LS31C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 82,
          "max": null,
          "conditions": "DB (SSOP) package",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input clamp voltage",
          "symbol": "VIK",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.5,
          "conditions": "VCC = MIN, II = –18 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = MIN, IOH = –20 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = MIN, IOL = 20 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "VCC = MIN, VO = 0.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VCC = MIN, VO = 2.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input current at maximum input voltage",
          "symbol": "II",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCC = MAX, VI = 7 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VCC = MAX, VI = 2.7 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -0.36,
          "conditions": "VCC = MAX, VI = 0.4 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": -150,
          "conditions": "VCC = MAX",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 32,
          "max": 80,
          "conditions": "VCC = MAX, all outputs disabled",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, low- to high-level output",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 14,
          "max": 20,
          "conditions": "CL = 30 pF, S1 and S2 open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay time, high- to low-level output",
          "symbol": "tPHL",
          "kind": "timing",
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          "min": null,
          "typ": 14,
          "max": 20,
          "conditions": "CL = 30 pF, S1 and S2 open",
          "source_page": 5,
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        },
        {
          "name": "Output enable time to high level",
          "symbol": "tPZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 25,
          "max": 40,
          "conditions": "CL = 30 pF, RL = 75 Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output enable time to low level",
          "symbol": "tPZL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 37,
          "max": 45,
          "conditions": "RL = 180 Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output disable time from high level",
          "symbol": "tPHZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 21,
          "max": 30,
          "conditions": "CL = 10 pF, S1 and S2 closed",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output disable time from low level",
          "symbol": "tPLZ",
          "kind": "timing",
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          "min": null,
          "typ": 23,
          "max": 35,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output-to-output skew",
          "symbol": "tSKEW",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 1,
          "max": 6,
          "conditions": "CL = 30 pF, S1 and S2 open",
          "source_page": 5,
          "source": "datasheet"
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      ]
    }
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  "discovery_pitch": "AM26LS31CDBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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