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Ray Set visibility: public 5bb98f2 5d ago
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{
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  "type": "component",
  "slug": "sn74ls126adr",
  "title": "SN74LS126ADR",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "logic",
    "sn74ls126adr",
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    "extractor-text"
  ],
  "component": {
    "mpn": "SN74LS126ADR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ls126a.pdf",
    "parts": {
      "symbol": "sn74ls126adr.kicad_sym",
      "footprint": "sn74ls126adr.kicad_mod",
      "model_3d": "sn74ls126adr-hero.glb",
      "model_3d_plain": "sn74ls126adr-etched.glb",
      "model_3d_step": "sn74ls126adr-etched.step",
      "model_3d_step_plain": "sn74ls126adr.step",
      "lbr": "sn74ls126adr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2865257",
      "digikey": "296-14882-2-ND",
      "mouser": "595-SN74LS126ADR"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T04:22:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14882-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LS126ADR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1G",
        "type": "input",
        "description": "Output enable for channel 1; on the '126/LS126A the outputs are disabled when G is low, so G is active-high enable (the overbar shown for the '125 variant does not apply)."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Data input for channel 1; for the LS126A, IIL is -0.4 mA max at VI = 0.4 V and IIH is 20 µA max at VI = 2.7 V."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "tri_state",
        "description": "Three-state buffer output for channel 1; when enabled it sinks up to 24 mA (IOL max) and sources up to -2.6 mA (IOH max), and it is high-impedance when disabled."
      },
      {
        "number": "4",
        "name": "2G",
        "type": "input",
        "description": "Output enable for channel 2; on the '126/LS126A the outputs are disabled when G is low, so G is active-high enable."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input for channel 2; for the LS126A, IIL is -0.4 mA max at VI = 0.4 V and IIH is 20 µA max at VI = 2.7 V."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "tri_state",
        "description": "Three-state buffer output for channel 2; when enabled it sinks up to 24 mA (IOL max) and sources up to -2.6 mA (IOH max), and it is high-impedance when disabled."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; voltages are referenced to the network ground terminal."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "tri_state",
        "description": "Three-state buffer output for channel 3; when enabled it sinks up to 24 mA (IOL max) and sources up to -2.6 mA (IOH max), and it is high-impedance when disabled."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input for channel 3; for the LS126A, IIL is -0.4 mA max at VI = 0.4 V and IIH is 20 µA max at VI = 2.7 V."
      },
      {
        "number": "10",
        "name": "3G",
        "type": "input",
        "description": "Output enable for channel 3; on the '126/LS126A the outputs are disabled when G is low, so G is active-high enable."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "tri_state",
        "description": "Three-state buffer output for channel 4; when enabled it sinks up to 24 mA (IOL max) and sources up to -2.6 mA (IOH max), and it is high-impedance when disabled."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input for channel 4; for the LS126A, IIL is -0.4 mA max at VI = 0.4 V and IIH is 20 µA max at VI = 2.7 V."
      },
      {
        "number": "13",
        "name": "4G",
        "type": "input",
        "description": "Output enable for channel 4; on the '126/LS126A the outputs are disabled when G is low, so G is active-high enable."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage: 4.75 V min, 5 V nominal, 5.25 V max for the SN74LS126A, with operating free-air temperature 0 °C to 70 °C."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pinout is printed once for the D, N and NS packages together; the pin mapping is the s; Text extraction dropped the overbar/asterisk typography. The '126/LS126A enable is non-inverted (out; Input and output pin descriptions quote the LS126A limits from the electrical characteristics table "
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        "at": "2026-10-18T04:21:38"
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        "pages": 28,
        "sha256": "f3be4110bb5f169b",
        "source_tier": "mfr"
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      "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,
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        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-18",
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "Logic",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f3be4110bb5f169b1a76dc749058e387a4f3478d60e04697046dbd11c19fbc47",
      "rows": [
        {
          "name": "Supply voltage (recommended)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.75,
          "typ": 5,
          "max": 5.25,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "recommended_operating",
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          "typ": null,
          "max": null,
          "conditions": "",
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        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
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          "max": 0.8,
          "conditions": "",
          "source_page": 6,
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        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -2.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "Voltage values with respect to network ground terminal",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (absolute maximum)",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "'LS125A and 'LS126A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package thermal impedance, D package",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 86,
          "max": null,
          "conditions": "D package, calculated per JESD 51-7",
          "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": 6,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VCC=MIN, VIH=2 V, VIL=0.8 V, IOH=-2.6 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.25,
          "max": 0.4,
          "conditions": "VCC=MIN, VIH=2 V, VIL=0.8 V, IOL=12 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.35,
          "max": 0.5,
          "conditions": "VCC=MIN, VIH=2 V, VIL=0.8 V, IOL=24 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current, high-level voltage applied",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "µA",
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          "max": 20,
          "conditions": "VCC=MAX, VIH=2 V, VIL=0.8 V, VO=2.4 V",
          "source_page": 6,
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        {
          "name": "Off-state output current, low-level voltage applied",
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          "source_page": 6,
          "source": "datasheet"
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        {
          "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": 6,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "conditions": "VCC=MAX, VI=2.7 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -0.4,
          "conditions": "VCC=MAX, VI=0.4 V, all inputs of 'LS126A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -40,
          "typ": null,
          "max": -225,
          "conditions": "VCC=MAX",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply current, LS126A",
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          "kind": "electrical",
          "unit": "mA",
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          "typ": 12,
          "max": 22,
          "conditions": "VCC=MAX, data inputs=0 V, output control=0 V (see Note 4)",
          "source_page": 6,
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          "name": "Output enable time to high level, LS126A",
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          "typ": 16,
          "max": 25,
          "conditions": "VCC=5 V, TA=25°C, RL=667 Ω, CL=45 pF",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Output enable time to low level, LS126A",
          "symbol": "tPZL",
          "kind": "timing",
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          "min": null,
          "typ": 21,
          "max": 35,
          "conditions": "VCC=5 V, TA=25°C, RL=667 Ω, CL=45 pF",
          "source_page": 6,
          "source": "datasheet"
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      ]
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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