SN74HCT541N

{
  "slug": "sn74hct541n",
  "version": "0.1.0",
  "type": "component",
  "description": "TI(德州仪器) Buffers, Drivers, Receivers, Transceivers, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74hct541n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "sn74hct541n.kicad_sym",
    "sn74hct541n.kicad_mod",
    "sn74hct541n.glb",
    "sn74hct541n.step",
    "sn74hct541n.lbr",
    "docs/hero.png",
    "docs/sn74hct541n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74hct541n-hero.glb",
    "sn74hct541n-hero.overlay.json",
    "sn74hct541n-etched.glb"
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  "component": {
    "mpn": "SN74HCT541N",
    "manufacturer": "TI(德州仪器)",
    "package": "DIP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Buffers, Drivers, Receivers, Transceivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74hct541",
    "parts": {
      "symbol": "sn74hct541n.kicad_sym",
      "footprint": "sn74hct541n.kicad_mod",
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      "model_3d_step": "sn74hct541n-etched.step",
      "model_3d_step_plain": "sn74hct541n.step",
      "lbr": "sn74hct541n.lbr"
    },
    "distributor_links": {
      "lcsc": "C354420",
      "digikey": "296-1619-5-ND",
      "mouser": "595-SN74HCT541N"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T04:18:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-1619-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74HCT541N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE1",
        "type": "input",
        "description": "Output enable 1; when OE1 or OE2 is high, all eight outputs are forced to the high-impedance state, so outputs are active only when both enables are low."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Data input for buffer channel 1, passed non-inverted to Y1 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Data input for buffer channel 2, passed non-inverted to Y2 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "4",
        "name": "A3",
        "type": "input",
        "description": "Data input for buffer channel 3, passed non-inverted to Y3 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "5",
        "name": "A4",
        "type": "input",
        "description": "Data input for buffer channel 4, passed non-inverted to Y4 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "6",
        "name": "A5",
        "type": "input",
        "description": "Data input for buffer channel 5, passed non-inverted to Y5 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "7",
        "name": "A6",
        "type": "input",
        "description": "Data input for buffer channel 6, passed non-inverted to Y6 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "8",
        "name": "A7",
        "type": "input",
        "description": "Data input for buffer channel 7, passed non-inverted to Y7 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "9",
        "name": "A8",
        "type": "input",
        "description": "Data input for buffer channel 8, passed non-inverted to Y8 when the outputs are enabled; inputs must stay between 0 V and VCC and unused inputs must be tied to VCC or GND."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "11",
        "name": "Y8",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 8 that follows A8 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "12",
        "name": "Y7",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 7 that follows A7 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "13",
        "name": "Y6",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 6 that follows A6 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "14",
        "name": "Y5",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 5 that follows A5 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "15",
        "name": "Y4",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 4 that follows A4 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "16",
        "name": "Y3",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 3 that follows A3 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "17",
        "name": "Y2",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 2 that follows A2 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "18",
        "name": "Y1",
        "type": "tri_state",
        "description": "Three-state buffered output of channel 1 that follows A1 and can drive up to 15 LSTTL loads (±6 mA at 5 V); it is high impedance when OE1 or OE2 is high."
      },
      {
        "number": "19",
        "name": "OE2",
        "type": "input",
        "description": "Output enable 2; when OE2 or OE1 is high, all eight outputs are forced to the high-impedance state, so outputs are active only when both enables are low."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 4.5 V to 5.5 V recommended (5 V nominal), with a 0.1-µF bypass capacitor placed as close to the pin as possible."
      }
    ],
    "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": [
          "extractor flagged: The datasheet's pin diagram (page 3) is scrambled in text extraction and does not explicitly list pi; The datasheet does not describe OE1/OE2 as 'active low' in words; the enable sense was taken from th; The package is listed as PDIP (N), 20 pins, in the ordering table and package list. The pinout is sh",
          "4/20 pins cited to the wrong page (name found elsewhere): ['11:Y8@p7', '12:Y7@p7', '13:Y6@p7', '14:Y5@p7']"
        ],
        "pages_sent": 30,
        "cost_usd": 0.0967,
        "at": "2026-10-19T04:18:39"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74hct541",
        "pages": 30,
        "sha256": "429686d50f7863c5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "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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          26.162,
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ca359c9b9e0ce94efcb6c96866513f659eef6517d629ace3c4a0a779f6fd57bb",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74hct541n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "ca77837694bd918b12463c7b6c7836c6ea5cfa792f607349a3aa8f533251c41f",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}