main
Ray Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") 741cd36 1mo ago
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  "title": "SN74AHCT1G125DCKR",
  "brief": "Texas Instruments Buffer/Driver/Transceiver, SC-70-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "subcategory": "Buffer/Driver/Transceiver",
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    "distributor_links": {
      "digikey": "296-4709-2-ND",
      "mouser": "595-SNAHCT1G125DCKR",
      "lcsc": "C350557"
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    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-low output enable. When OE is low, the buffer passes A to Y; when OE is high, the Y output is placed in a high-impedance (3-state) condition. Should be tied to VCC through a pull-up resistor during power up/down to ensure high-Z state."
      },
      {
        "number": "2",
        "name": "A",
        "type": "input",
        "description": "Buffer data input. TTL-compatible input (VIH min 2 V, VIL max 0.8 V at VCC = 4.5-5.5 V). Driven to output Y when OE is asserted low."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for the device."
      },
      {
        "number": "4",
        "name": "Y",
        "type": "tri_state",
        "description": "3-state buffer output. Drives ±8 mA at VCC = 5 V; high-impedance when OE is high. Follows A when OE is low."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage input. Recommended operating range 4.5 V to 5.5 V; absolute maximum 7 V. Typical ICC 10 µA max."
      }
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      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74ahct1g125.pdf",
        "pages": 26,
        "sha256": "dbaf49b3af33690f",
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    "pin1": {
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-353_SC-70-5@sha256:869e17094994ff78",
      "mark": "drawn"
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    "logic": {
      "family_id": "74AHCT1G125",
      "logic_family": "74AHCT",
      "function_code": "1G125",
      "function_class": "Buffer",
      "function_name": "1-gate variant of Quad Bus Buffer with 3-State Outputs (125)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SC-70-5",
      "Category": "Logic",
      "Pins": "5"
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  "discovery_pitch": "SN74AHCT1G125DCKR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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    {
      "mpn": "SN74AHCT1G125DCKR",
      "kind": "packaging"
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    {
      "mpn": "SN74AHCT1G125DCKRDCKT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AHCT1G125DCKRDBVR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AHCT1G125DCKRDBVT",
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    {
      "mpn": "SN74AHCT1G125DCKRDRLR",
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  "updated_at": "2026-09-25T06:44:06.902Z"
}