SN74AVC4T774PWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74avc4t774pwr",
  "title": "SN74AVC4T774PWR",
  "brief": "Texas Instruments Buffer/Driver/Transceiver, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74avc4t774pwr"
  ],
  "component": {
    "mpn": "SN74AVC4T774PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74avc4t774.pdf",
    "parts": {
      "symbol": "sn74avc4t774pwr.kicad_sym",
      "footprint": "sn74avc4t774pwr.kicad_mod",
      "model_3d": "sn74avc4t774pwr-etched.glb",
      "model_3d_plain": "sn74avc4t774pwr.glb",
      "model_3d_step": "sn74avc4t774pwr-etched.step",
      "model_3d_step_plain": "sn74avc4t774pwr.step",
      "lbr": "sn74avc4t774pwr.lbr"
    },
    "distributor_links": {
      "digikey": "296-24739-2-ND",
      "lcsc": "C129363"
    },
    "pins": [
      {
        "number": "1",
        "name": "DIR1",
        "type": "input",
        "description": "Direction-control input for channel 1 (A1/B1). Referenced to VCCA. HIGH = A1 drives B1; LOW = B1 drives A1."
      },
      {
        "number": "2",
        "name": "DIR2",
        "type": "input",
        "description": "Direction-control input for channel 2 (A2/B2). Referenced to VCCA."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "bidirectional",
        "description": "Channel 1 A-port I/O. Referenced to VCCA (1.1V-3.6V). Direction set by DIR1; forced high-Z when OE is HIGH."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "bidirectional",
        "description": "Channel 2 A-port I/O. Referenced to VCCA (1.1V-3.6V). Direction set by DIR2; forced high-Z when OE is HIGH."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "Channel 3 A-port I/O. Referenced to VCCA (1.1V-3.6V). Direction set by DIR3; forced high-Z when OE is HIGH."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "Channel 4 A-port I/O. Referenced to VCCA (1.1V-3.6V). Direction set by DIR4; forced high-Z when OE is HIGH."
      },
      {
        "number": "7",
        "name": "DIR3",
        "type": "input",
        "description": "Direction-control input for channel 3 (A3/B3). Referenced to VCCA."
      },
      {
        "number": "8",
        "name": "DIR4",
        "type": "input",
        "description": "Direction-control input for channel 4 (A4/B4). Referenced to VCCA."
      },
      {
        "number": "9",
        "name": "OE",
        "type": "input",
        "description": "Active-low output enable. Pull OE HIGH to place all A- and B-port outputs in 3-state (high-impedance). Referenced to VCCA. Tie to VCCA through a pullup during power-up."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "11",
        "name": "B4",
        "type": "bidirectional",
        "description": "Channel 4 B-port I/O. Referenced to VCCB (1.1V-3.6V). Direction set by DIR4; forced high-Z when OE is HIGH."
      },
      {
        "number": "12",
        "name": "B3",
        "type": "bidirectional",
        "description": "Channel 3 B-port I/O. Referenced to VCCB (1.1V-3.6V). Direction set by DIR3; forced high-Z when OE is HIGH."
      },
      {
        "number": "13",
        "name": "B2",
        "type": "bidirectional",
        "description": "Channel 2 B-port I/O. Referenced to VCCB (1.1V-3.6V). Direction set by DIR2; forced high-Z when OE is HIGH."
      },
      {
        "number": "14",
        "name": "B1",
        "type": "bidirectional",
        "description": "Channel 1 B-port I/O. Referenced to VCCB (1.1V-3.6V). Direction set by DIR1; forced high-Z when OE is HIGH."
      },
      {
        "number": "15",
        "name": "VCCB",
        "type": "power_in",
        "description": "B-port supply rail. 1.1V ≤ VCCB ≤ 3.6V. Sets the logic reference for all B-side I/Os. Decouple with 0.1µF near the pin."
      },
      {
        "number": "16",
        "name": "VCCA",
        "type": "power_in",
        "description": "A-port supply rail. 1.1V ≤ VCCA ≤ 3.6V. Also references the DIR1-DIR4 and OE control inputs. Decouple with 0.1µF near the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74avc4t774.pdf",
        "pages": 43,
        "sha256": "5a4b93d5306c4f39",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.275
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-16_4.4x5mm_P0.65mm@sha256:fbac79fc5f310754",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74AVC4T774",
      "logic_family": "74AVC",
      "function_code": "4T774",
      "function_class": null,
      "function_name": null,
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "sn74avc4t774pwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74avc4t774pwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2f33af11e88b3a2d10aee3eb0387cd13e93eee4e2e01cb5b97ad7907ffe73ec5",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74avc4t774pwr"
  ],
  "discovery_pitch": "SN74AVC4T774PWR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74avc4t774pwr.kicad_sym",
    "sn74avc4t774pwr.kicad_mod",
    "sn74avc4t774pwr.glb",
    "sn74avc4t774pwr.step",
    "sn74avc4t774pwr-etched.step",
    "sn74avc4t774pwr.lbr",
    "docs/hero.png",
    "docs/sn74avc4t774pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SN74AVC4T774PWR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC4T774PWRRGYR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC4T774PWRRSVR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC4T774PWRBQBR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74AVC4T774PWRDYYR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T06:53:08.399Z"
}