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Ray Set visibility: public 6674ca4 5d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74ls374dwr",
  "title": "SN74LS374DWR",
  "brief": "lingxingic Flip Flops, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "sn74ls374dwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74LS374DWR",
    "manufacturer": "lingxingic",
    "package": "SOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b5dadebd6fcf2f79b1e2bb7a96828499.pdf",
    "parts": {
      "symbol": "sn74ls374dwr.kicad_sym",
      "footprint": "sn74ls374dwr.kicad_mod",
      "model_3d": "sn74ls374dwr-hero.glb",
      "model_3d_plain": "sn74ls374dwr-etched.glb",
      "model_3d_step": "sn74ls374dwr-etched.step",
      "model_3d_step_plain": "sn74ls374dwr.step",
      "lbr": "sn74ls374dwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C22466296",
      "digikey": "296-14894-2-ND",
      "mouser": "595-SN74LS374DWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:29:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-14894-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LS374DWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-low output enable input; a high level puts the outputs in high impedance without affecting flip-flop state."
      },
      {
        "number": "2",
        "name": "Q0",
        "type": "tri_state",
        "description": "Data output 0 (non-inverting 3-state output)."
      },
      {
        "number": "3",
        "name": "D0",
        "type": "input",
        "description": "Data input 0."
      },
      {
        "number": "4",
        "name": "D1",
        "type": "input",
        "description": "Data input 1."
      },
      {
        "number": "5",
        "name": "Q1",
        "type": "tri_state",
        "description": "Data output 1 (non-inverting 3-state output)."
      },
      {
        "number": "6",
        "name": "Q2",
        "type": "tri_state",
        "description": "Data output 2 (non-inverting 3-state output)."
      },
      {
        "number": "7",
        "name": "D2",
        "type": "input",
        "description": "Data input 2."
      },
      {
        "number": "8",
        "name": "D3",
        "type": "input",
        "description": "Data input 3."
      },
      {
        "number": "9",
        "name": "Q3",
        "type": "tri_state",
        "description": "Data output 3 (non-inverting 3-state output)."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0V)."
      },
      {
        "number": "11",
        "name": "CP",
        "type": "input",
        "description": "Clock input, low-to-high edge triggered."
      },
      {
        "number": "12",
        "name": "Q4",
        "type": "tri_state",
        "description": "Data output 4 (non-inverting 3-state output)."
      },
      {
        "number": "13",
        "name": "D4",
        "type": "input",
        "description": "Data input 4."
      },
      {
        "number": "14",
        "name": "D5",
        "type": "input",
        "description": "Data input 5."
      },
      {
        "number": "15",
        "name": "Q5",
        "type": "tri_state",
        "description": "Data output 5 (non-inverting 3-state output)."
      },
      {
        "number": "16",
        "name": "Q6",
        "type": "tri_state",
        "description": "Data output 6 (non-inverting 3-state output)."
      },
      {
        "number": "17",
        "name": "D6",
        "type": "input",
        "description": "Data input 6."
      },
      {
        "number": "18",
        "name": "D7",
        "type": "input",
        "description": "Data input 7."
      },
      {
        "number": "19",
        "name": "Q7",
        "type": "tri_state",
        "description": "Data output 7 (non-inverting 3-state output)."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended 2.0V to 6.0V (5.0V typical), absolute maximum -0.5V to +7.0V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin table text (pages 7-8) is the source; the pin-diagram text on page 7 is scrambled but consistent"
        ],
        "pages_sent": 22,
        "cost_usd": 0.1321,
        "at": "2026-10-23T03:28:42"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b5dadebd6fcf2f79b1e2bb7a96828499.pdf",
        "pages": 22,
        "sha256": "0330377b79f2eb40",
        "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"
    },
    "models_3d": [
      {
        "file": "sn74ls374dwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "14adf57874b033470ebd1bddf1f345585f8400ba7d326ae650276c480b3aa1ab",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls374dwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ed6e2b4c8b3a59b014cd16ff268a3f1de18cd4804f2588a55dd26178171cbecd",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "SOP-20",
      "Category": "Logic",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0330377b79f2eb4005a3477725b48eaf2c9595b3148393bbfa4c574f7eb00345",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "Tamb=25℃, GND=0V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI<-0.5V or VI>VCC+0.5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output clamp current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO<-0.5V or VO>VCC+0.5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -35,
          "typ": null,
          "max": 35,
          "conditions": "-0.5V<VO<VCC+0.5V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Ground current",
          "symbol": "IGND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -70,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s, SOP/TSSOP",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": 5,
          "max": 6,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "max is VCC",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "max is VCC",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall slew rate",
          "symbol": "Δt/ΔV",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": null,
          "max": 625,
          "conditions": "VCC=2.0V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall slew rate",
          "symbol": "Δt/ΔV",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": 1.67,
          "max": 139,
          "conditions": "VCC=4.5V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input rise and fall slew rate",
          "symbol": "Δt/ΔV",
          "kind": "recommended_operating",
          "unit": "ns/V",
          "min": null,
          "typ": null,
          "max": 83,
          "conditions": "VCC=6.0V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VCC=2.0V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.15,
          "typ": null,
          "max": null,
          "conditions": "VCC=4.5V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": null,
          "conditions": "VCC=6.0V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC=2.0V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.35,
          "conditions": "VCC=4.5V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "VCC=6.0V; Tamb=-40℃~+125℃",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-20uA; VCC=2.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-20uA; VCC=4.5V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.9,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-20uA; VCC=6.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.7,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-6.0mA; VCC=4.5V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.2,
          "typ": null,
          "max": null,
          "conditions": "VI=VIH or VIL; IO=-7.8mA; VCC=6.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VI=VIH or VIL; IO=20uA; VCC=2.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VI=VIH or VIL; IO=6.0mA; VCC=4.5V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI=VCC or GND; VCC=6.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Off-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "uA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VI=VIH or VIL; VCC=6.0V; VO=VCC or GND",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "VI=VCC or GND; IO=0A; VCC=6.0V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "CP to Qn propagation delay",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "VCC=2.0V; Tamb=-40℃~+125℃",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "CP to Qn propagation delay",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VCC=4.5V; Tamb=-40℃~+125℃",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "CP to Qn propagation delay",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 43,
          "conditions": "VCC=6.0V; Tamb=-40℃~+125℃",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "OE to Qn enable time",
          "symbol": "ten",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 225,
          "conditions": "VCC=2.0V; Tamb=-40℃~+125℃",
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