SN74LVC1G74DCUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lvc1g74dcur",
  "title": "SN74LVC1G74DCUR",
  "brief": "Texas Instruments Flip Flops, VSSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74lvc1g74dcur"
  ],
  "component": {
    "mpn": "SN74LVC1G74DCUR",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lvc1g74dcur.pdf",
    "parts": {
      "symbol": "sn74lvc1g74dcur.kicad_sym",
      "footprint": "sn74lvc1g74dcur.kicad_mod",
      "model_3d": "sn74lvc1g74dcur-etched.glb",
      "model_3d_plain": "sn74lvc1g74dcur.glb",
      "model_3d_step": "sn74lvc1g74dcur-etched.step",
      "model_3d_step_plain": "sn74lvc1g74dcur.step",
      "lbr": "sn74lvc1g74dcur.lbr"
    },
    "distributor_links": {
      "digikey": "296-25554-2-ND",
      "lcsc": "C70285"
    },
    "pins": [
      {
        "number": "1",
        "name": "CLK",
        "type": "input",
        "description": "Clock input. Data at the D input is transferred to Q on the positive (rising) edge of CLK, provided setup/hold requirements are met."
      },
      {
        "number": "2",
        "name": "D",
        "type": "input",
        "description": "Data input to the D-type flip-flop. Logic level present at D is captured to Q on the rising edge of CLK."
      },
      {
        "number": "3",
        "name": "~{Q}",
        "type": "output",
        "description": "Inverted (complementary) flip-flop output. Drives ±24 mA at VCC = 3.3 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for the device."
      },
      {
        "number": "5",
        "name": "Q",
        "type": "output",
        "description": "Non-inverted flip-flop output. Drives ±24 mA at VCC = 3.3 V."
      },
      {
        "number": "6",
        "name": "~{CLR}",
        "type": "input",
        "description": "Active-low asynchronous clear input. Pull low to force Q low (and ~{Q} high) regardless of CLK/D. Must be held high (inactive) for normal clocked operation."
      },
      {
        "number": "7",
        "name": "~{PRE}",
        "type": "input",
        "description": "Active-low asynchronous preset input. Pull low to force Q high (and ~{Q} low) regardless of CLK/D. Must be held high (inactive) for normal clocked operation."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, 1.65 V to 5.5 V operating range (1.5 V minimum for data retention only)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lvc1g74dcur.pdf",
        "pages": 24,
        "sha256": "be9952765c368693",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.4,
        -0.75
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "74LVC1G74",
      "logic_family": "74LVC",
      "function_code": "1G74",
      "function_class": "Flip-Flop",
      "function_name": "1-gate variant of Dual D Flip-Flop with Set/Reset (74)",
      "manufacturer": "Texas Instruments",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "sn74lvc1g74dcur.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2,
          0.85
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lvc1g74dcur-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2,
          0.85
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "aafcd0feee0225f08f5bfce70791395e201eed37a1867eb4ab2e6e1ec82d7da9",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-8",
      "Category": "Logic",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74lvc1g74dcur"
  ],
  "discovery_pitch": "SN74LVC1G74DCUR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74lvc1g74dcur.kicad_sym",
    "sn74lvc1g74dcur.kicad_mod",
    "sn74lvc1g74dcur.glb",
    "sn74lvc1g74dcur.step",
    "sn74lvc1g74dcur-etched.step",
    "sn74lvc1g74dcur.lbr",
    "docs/hero.png",
    "docs/sn74lvc1g74dcur-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SN74LVC1G74DCUR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G74DCURDCUT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G74DCURDCTR",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G74DCURDCTT",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G74DCURDQER",
      "kind": "packaging"
    },
    {
      "mpn": "SN74LVC1G74DCURRSER",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T07:38:41.663Z"
}