SN74LV273APWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lv273apwr",
  "title": "SN74LV273APWR",
  "brief": "Texas Instruments Flip Flops, TSSOP-20. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74lv273apwr"
  ],
  "component": {
    "mpn": "SN74LV273APWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lv273a.pdf",
    "parts": {
      "symbol": "sn74lv273apwr.kicad_sym",
      "footprint": "sn74lv273apwr.kicad_mod",
      "model_3d": "sn74lv273apwr-etched.glb",
      "model_3d_plain": "sn74lv273apwr.glb",
      "model_3d_step": "sn74lv273apwr-etched.step",
      "model_3d_step_plain": "sn74lv273apwr.step",
      "lbr": "sn74lv273apwr.lbr"
    },
    "distributor_links": {
      "digikey": "296-3812-2-ND",
      "mouser": "595-SN74LV273APWR",
      "lcsc": "C456274"
    },
    "pins": [
      {
        "number": "1",
        "name": "CLR",
        "type": "input",
        "description": "Active-low asynchronous clear input. Driving CLR low forces all eight Q outputs low independently of CLK."
      },
      {
        "number": "2",
        "name": "1Q",
        "type": "output",
        "description": "Flip-flop 1 Q output. Follows 1D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "3",
        "name": "1D",
        "type": "input",
        "description": "Flip-flop 1 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "4",
        "name": "2D",
        "type": "input",
        "description": "Flip-flop 2 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "5",
        "name": "2Q",
        "type": "output",
        "description": "Flip-flop 2 Q output. Follows 2D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "6",
        "name": "3Q",
        "type": "output",
        "description": "Flip-flop 3 Q output. Follows 3D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "7",
        "name": "3D",
        "type": "input",
        "description": "Flip-flop 3 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "8",
        "name": "4D",
        "type": "input",
        "description": "Flip-flop 4 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "9",
        "name": "4Q",
        "type": "output",
        "description": "Flip-flop 4 Q output. Follows 4D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference (0 V)."
      },
      {
        "number": "11",
        "name": "CLK",
        "type": "input",
        "description": "Common clock input for all eight flip-flops. Data on the D inputs is transferred to the Q outputs on the rising edge."
      },
      {
        "number": "12",
        "name": "5Q",
        "type": "output",
        "description": "Flip-flop 5 Q output. Follows 5D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "13",
        "name": "5D",
        "type": "input",
        "description": "Flip-flop 5 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "14",
        "name": "6D",
        "type": "input",
        "description": "Flip-flop 6 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "15",
        "name": "6Q",
        "type": "output",
        "description": "Flip-flop 6 Q output. Follows 6D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "16",
        "name": "7Q",
        "type": "output",
        "description": "Flip-flop 7 Q output. Follows 7D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "17",
        "name": "7D",
        "type": "input",
        "description": "Flip-flop 7 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "18",
        "name": "8D",
        "type": "input",
        "description": "Flip-flop 8 D data input. Sampled on the rising edge of CLK."
      },
      {
        "number": "19",
        "name": "8Q",
        "type": "output",
        "description": "Flip-flop 8 Q output. Follows 8D on the rising edge of CLK; forced low when CLR is low."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input, 2 V to 5.5 V (absolute max 7 V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lv273a.pdf",
        "pages": 45,
        "sha256": "d29b4a0410bdb60f",
        "source_tier": "mfr"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.925
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-20_4.4x6.5mm_P0.65mm@sha256:b7ca3a31dd45c122",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74LV273",
      "logic_family": "74LV",
      "function_code": "273",
      "function_class": "Flip-Flop",
      "function_name": "Octal D Flip-Flop with Reset",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "sn74lv273apwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lv273apwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "bdf7c914462f61a72d9d3b7830a99b8ba8a01be8cfe4ba752f7ed207f7c4d603",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74lv273apwr"
  ],
  "discovery_pitch": "SN74LV273APWR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lv273apwr.kicad_sym",
    "sn74lv273apwr.kicad_mod",
    "sn74lv273apwr.glb",
    "sn74lv273apwr.step",
    "sn74lv273apwr-etched.step",
    "sn74lv273apwr.lbr",
    "docs/hero.png",
    "docs/sn74lv273apwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SN74LV273APWR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRDB",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRDGV",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRDW",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRNS",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRRGY",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRRKS",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LV273APWRDGS",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T07:23:05.468Z"
}