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Ray Set visibility: public 7693d61 6d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74f126n",
  "title": "SN74F126N",
  "brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, PDIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74f126n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74F126N",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74f126",
    "parts": {
      "symbol": "sn74f126n.kicad_sym",
      "footprint": "sn74f126n.kicad_mod",
      "model_3d": "sn74f126n-hero.glb",
      "model_3d_plain": "sn74f126n-etched.glb",
      "model_3d_step": "sn74f126n-etched.step",
      "model_3d_step_plain": "sn74f126n.step",
      "lbr": "sn74f126n.lbr"
    },
    "distributor_links": {
      "lcsc": "C2872302",
      "digikey": "2156-SN74F126N-ND",
      "mouser": "595-SN74F126N"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T22:21:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-SN74F126N-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74F126N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1OE",
        "type": "input",
        "description": "Active-low output enable for buffer 1; when low, output 1Y is disabled to the high-impedance state."
      },
      {
        "number": "2",
        "name": "1A",
        "type": "input",
        "description": "Data input of buffer 1, with VIH minimum 2 V and VIL maximum 0.8 V; unused inputs must be held at VCC or GND."
      },
      {
        "number": "3",
        "name": "1Y",
        "type": "tri_state",
        "description": "3-state output of buffer 1, which is high-impedance whenever 1OE is low (IOH maximum -15 mA, IOL maximum 64 mA)."
      },
      {
        "number": "4",
        "name": "2OE",
        "type": "input",
        "description": "Active-low output enable for buffer 2; when low, output 2Y is disabled to the high-impedance state."
      },
      {
        "number": "5",
        "name": "2A",
        "type": "input",
        "description": "Data input of buffer 2, with VIH minimum 2 V and VIL maximum 0.8 V; unused inputs must be held at VCC or GND."
      },
      {
        "number": "6",
        "name": "2Y",
        "type": "tri_state",
        "description": "3-state output of buffer 2, which is high-impedance whenever 2OE is low (IOH maximum -15 mA, IOL maximum 64 mA)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "8",
        "name": "3Y",
        "type": "tri_state",
        "description": "3-state output of buffer 3, which is high-impedance whenever 3OE is low (IOH maximum -15 mA, IOL maximum 64 mA)."
      },
      {
        "number": "9",
        "name": "3A",
        "type": "input",
        "description": "Data input of buffer 3, with VIH minimum 2 V and VIL maximum 0.8 V; unused inputs must be held at VCC or GND."
      },
      {
        "number": "10",
        "name": "3OE",
        "type": "input",
        "description": "Active-low output enable for buffer 3; when low, output 3Y is disabled to the high-impedance state."
      },
      {
        "number": "11",
        "name": "4Y",
        "type": "tri_state",
        "description": "3-state output of buffer 4, which is high-impedance whenever 4OE is low (IOH maximum -15 mA, IOL maximum 64 mA)."
      },
      {
        "number": "12",
        "name": "4A",
        "type": "input",
        "description": "Data input of buffer 4, with VIH minimum 2 V and VIL maximum 0.8 V; unused inputs must be held at VCC or GND."
      },
      {
        "number": "13",
        "name": "4OE",
        "type": "input",
        "description": "Active-low output enable for buffer 4; when low, output 4Y is disabled to the high-impedance state."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 4.5 V minimum to 5.5 V maximum (5 V nominal) per the recommended operating conditions."
      }
    ],
    "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": [],
        "pages_sent": 13,
        "cost_usd": 0.0525,
        "at": "2026-10-16T22:19:19"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74f126",
        "pages": 13,
        "sha256": "0aa2d54573aff700",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sn74f126n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          19.05,
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        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3dae072a95c64bee0d1e58be8e75383639f5017ab982de1749d05808a4eed058",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74f126n-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": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e04ec07d3d3aaf2c02fa1085fa1104ce12bc0e225e9ad845c21735a2b6f91723",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "PDIP-14",
      "Category": "Logic",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0aa2d54573aff700a3bb5bc6ac2a639c58a9a80a052b971bd1a942b602c00e00",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1.2,
          "typ": null,
          "max": 7,
          "conditions": "see Note 1",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Voltage applied to any output in the disabled or power-off state",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Voltage applied to any output in the high state",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCC",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current into any output in the low state",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 128,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package thermal impedance, N package",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "N package; see Note 2",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -18,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -15,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 64,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input clamp voltage",
          "symbol": "VIK",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "II = –18 mA; VCC = 4.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": 3.3,
          "max": null,
          "conditions": "IOH = –3 mA; VCC = 4.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 3.1,
          "max": null,
          "conditions": "IOH = –15 mA; VCC = 4.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": null,
          "conditions": "IOH = –3 mA; VCC = 4.75 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": 0.55,
          "conditions": "IOL = 64 mA; VCC = 4.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input current at maximum input voltage",
          "symbol": "II",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = 7 V; VCC = 0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VI = 2.7 V; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": -20,
          "conditions": "VI = 0.5 V; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current, high-level voltage applied",
          "symbol": "IOZH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VO = 2.7 V; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current, low-level voltage applied",
          "symbol": "IOZL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "VO = 0.5 V; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -100,
          "max": -225,
          "conditions": "VO = 0; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, outputs high",
          "symbol": "ICCH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": 30,
          "conditions": "Outputs open; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, outputs low",
          "symbol": "ICCL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 32,
          "max": 48,
          "conditions": "Outputs open; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, outputs disabled",
          "symbol": "ICCZ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 26,
          "max": 39,
          "conditions": "Outputs open; VCC = 5.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tPLH (A to Y)",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": 4,
          "max": 6.5,
          "conditions": "From A to Y; VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tPLH (A to Y)",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": null,
          "max": 7,
          "conditions": "From A to Y; VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tPHL (A to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 3,
          "typ": 5.5,
          "max": 8,
          "conditions": "From A to Y; VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Propagation delay tPHL (A to Y)",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 2.8,
          "typ": null,
          "max": 8.5,
          "conditions": "From A to Y; VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable time tPZH (OE to Y)",
          "symbol": "tPZH",
          "kind": "timing",
          "unit": "ns",
          "min": 3.8,
          "typ": 6,
          "max": 7.5,
          "conditions": "From OE to Y; VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable time tPZH (OE to Y)",
          "symbol": "tPZH",
          "kind": "timing",
          "unit": "ns",
          "min": 3.3,
          "typ": null,
          "max": 8.5,
          "conditions": "From OE to Y; VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable time tPZL (OE to Y)",
          "symbol": "tPZL",
          "kind": "timing",
          "unit": "ns",
          "min": 3.8,
          "typ": 6,
          "max": 8,
          "conditions": "From OE to Y; VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable time tPZL (OE to Y)",
          "symbol": "tPZL",
          "kind": "timing",
          "unit": "ns",
          "min": 3.5,
          "typ": null,
          "max": 8.5,
          "conditions": "From OE to Y; VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Disable time tPHZ (OE to Y)",
          "symbol": "tPHZ",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": 4.5,
          "max": 6.5,
          "conditions": "From OE to Y; VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Disable time tPHZ (OE to Y)",
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