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Ray Set visibility: public 9c53508 22h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "74hct373pw",
  "title": "74HCT373PW",
  "brief": "Nexperia Latches, TSSOP-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",
    "74hct373pw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "74HCT373PW",
    "manufacturer": "Nexperia",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Latches",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/74HCT373PW.pdf",
    "parts": {
      "symbol": "74hct373pw.kicad_sym",
      "footprint": "74hct373pw.kicad_mod",
      "model_3d": "74hct373pw-hero.glb",
      "model_3d_plain": "74hct373pw-etched.glb",
      "model_3d_step": "74hct373pw-etched.step",
      "model_3d_step_plain": "74hct373pw.step",
      "lbr": "74hct373pw.lbr"
    },
    "distributor_links": {
      "lcsc": "C547621",
      "mouser": "771-74HCT373PW"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T22:07:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "771-74HCT373PW",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-LOW 3-state output enable; a HIGH forces outputs Q0 to Q7 into the high-impedance OFF-state without affecting the latch contents."
      },
      {
        "number": "2",
        "name": "Q0",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "3",
        "name": "D0",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "4",
        "name": "D1",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "5",
        "name": "Q1",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "6",
        "name": "Q2",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "7",
        "name": "D2",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "8",
        "name": "D3",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "9",
        "name": "Q3",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for all voltages on the device."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Active-HIGH latch enable; when HIGH the latches are transparent, and when LOW they store the data present at the inputs."
      },
      {
        "number": "12",
        "name": "Q4",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "13",
        "name": "D4",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "14",
        "name": "D5",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "15",
        "name": "Q5",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "16",
        "name": "Q6",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "17",
        "name": "D6",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "18",
        "name": "D7",
        "type": "input",
        "description": "Data input to the latch; for 74HCT373 it is TTL level (VIH minimum 2.0 V, VIL maximum 0.8 V at VCC 4.5 V to 5.5 V)."
      },
      {
        "number": "19",
        "name": "Q7",
        "type": "tri_state",
        "description": "3-state latch output that goes high-impedance when OE is HIGH."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; the 74HCT373 recommended range is 4.5 V to 5.5 V."
      }
    ],
    "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 pin map is taken from Table 2 (pin description, page 4), which applies to both SO20 and TSSOP20."
        ],
        "pages_sent": 16,
        "cost_usd": 0.0742,
        "at": "2026-10-27T22:06:50"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/74HCT373PW.pdf",
        "pages": 16,
        "sha256": "694e57b88d55eac3",
        "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"
    },
    "models_3d": [
      {
        "file": "74hct373pw.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": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74hct373pw-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": "949af398b558884f001433be11561237e0f6d43188d235c82893f92134c5f159",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "694e57b88d55eac34c95674e7897f714daefbb54bc6811fdc31cae13077b59fa",
      "rows": [
        {
          "name": "supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "input clamping current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < -0.5 V or VI > VCC + 0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "output clamping current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO < -0.5 V or VO > VCC + 0.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -35,
          "typ": null,
          "max": 35,
          "conditions": "VO = -0.5 V to (VCC + 0.5 V)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "supply current",
          "symbol": "ICC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ground current",
          "symbol": "IGND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -70,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "supply voltage (74HCT373)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "input voltage",
          "symbol": "VI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "output voltage",
          "symbol": "VO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 25,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "input transition rise and fall rate",
          "symbol": "Δt/ΔV",
          "kind": "timing",
          "unit": "ns/V",
          "min": null,
          "typ": 1.67,
          "max": 139,
          "conditions": "VCC = 4.5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 1.6,
          "max": null,
          "conditions": "VCC = 4.5 V to 5.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "LOW-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": 0.8,
          "conditions": "VCC = 4.5 V to 5.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.5,
          "max": null,
          "conditions": "VI = VIH or VIL; IO = -20 μA; VCC = 4.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "HIGH-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.7,
          "typ": 4.32,
          "max": null,
          "conditions": "VI = VIH or VIL; IO = -6.0 mA; VCC = 4.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VI = VIH or VIL; IO = 20 μA; VCC = 4.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "LOW-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.16,
          "max": 0.4,
          "conditions": "VI = VIH or VIL; IO = 6.0 mA; VCC = 4.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI = VCC or GND; VCC = 5.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "OFF-state output current",
          "symbol": "IOZ",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "VI = VCC or GND; IO = 0 A; VCC = 5.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "additional supply current (Dn input)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 30,
          "max": 147,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "additional supply current (LE input)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 150,
          "max": 735,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "additional supply current (OE input)",
          "symbol": "ΔICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 100,
          "max": 490,
          "conditions": "VI = VCC - 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "input capacitance",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "propagation delay Dn to Qn",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 17,
          "max": 45,
          "conditions": "Dn to Qn; see Fig. 8; VCC = 4.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "propagation delay LE to Qn",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 16,
          "max": 48,
          "conditions": "LE to Qn; see Fig. 9; VCC = 4.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "enable time OE to Qn",
          "symbol": "ten",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 19,
          "max": 48,
          "conditions": "OE to Qn; see Fig. 10; VCC = 4.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "disable time OE to Qn",
          "symbol": "tdis",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 18,
          "max": 45,
          "conditions": "OE to Qn; see Fig. 10; VCC = 4.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "transition time",
          "symbol": "tt",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 5,
          "max": 18,
          "conditions": "Qn; see Fig. 8 and Fig. 9; VCC = 4.5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "pulse width LE HIGH",
          "symbol": "tW",
          "kind": "timing",
          "unit": "ns",
          "min": 24,
          "typ": 4,
          "max": null,
          "conditions": "LE HIGH; VCC = 4.5 V; see Fig. 9",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "set-up time Dn to LE",
          "symbol": "tsu",
          "kind": "timing",
          "unit": "ns",
          "min": 18,
          "typ": 6,
          "max": null,
          "conditions": "Dn to LE; VCC = 4.5 V; see Fig. 11",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "hold time Dn to LE",
          "symbol": "th",
          "kind": "timing",
          "unit": "ns",
          "min": 4,
          "typ": -1,
          "max": null,
          "conditions": "Dn to LE; VCC = 4.5 V; see Fig. 11",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "propagation delay Dn to Qn",
          "symbol": "tpd",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 14,
          "max": null,
          "conditions": "Dn to Qn; see Fig. 8; VCC = 5 V; CL = 15 pF",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "propagation delay LE to Qn",
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