74HC164AP

{
  "schema_version": 1,
  "type": "component",
  "slug": "74hc164ap",
  "title": "74HC164AP",
  "brief": "Sungine Shift Registers, SOP-14. 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",
    "74hc164ap",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "74HC164AP",
    "manufacturer": "Sungine",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Shift Registers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3fff4b16835eec7317f0dbd4391d761e.pdf",
    "parts": {
      "symbol": "74hc164ap.kicad_sym",
      "footprint": "74hc164ap.kicad_mod",
      "model_3d": "74hc164ap-hero.glb",
      "model_3d_plain": "74hc164ap-etched.glb",
      "model_3d_step": "74hc164ap-etched.step",
      "model_3d_step_plain": "74hc164ap.step",
      "lbr": "74hc164ap.lbr"
    },
    "distributor_links": {
      "lcsc": "C5274769"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:02:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Serial data input A, ANDed with B; if either A or B is low, new data entry is inhibited and the first flip-flop is set low on the next clock."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Serial data input B, ANDed with A; when one of A or B is high the other input enables data entry on the rising clock edge."
      },
      {
        "number": "3",
        "name": "QA",
        "type": "output",
        "description": "Shift register output A (first stage)."
      },
      {
        "number": "4",
        "name": "QB",
        "type": "output",
        "description": "Shift register output B."
      },
      {
        "number": "5",
        "name": "QC",
        "type": "output",
        "description": "Shift register output C."
      },
      {
        "number": "6",
        "name": "QD",
        "type": "output",
        "description": "Shift register output D."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference; supply current through VCC or GND is limited to ±50 mA."
      },
      {
        "number": "8",
        "name": "CLOCK",
        "type": "input",
        "description": "Clock input, data shifts one position on the low-to-high transition; input rise/fall time max 1000 ns at 2.0 V, 500 ns at 4.5 V, 400 ns at 6.0 V."
      },
      {
        "number": "9",
        "name": "CLEAR",
        "type": "input",
        "description": "Active-low asynchronous clear input, a low level forces all outputs QA to QH low regardless of other inputs."
      },
      {
        "number": "10",
        "name": "QE",
        "type": "output",
        "description": "Shift register output E."
      },
      {
        "number": "11",
        "name": "QF",
        "type": "output",
        "description": "Shift register output F."
      },
      {
        "number": "12",
        "name": "QG",
        "type": "output",
        "description": "Shift register output G."
      },
      {
        "number": "13",
        "name": "QH",
        "type": "output",
        "description": "Shift register output H (last stage); output current limited to ±25 mA."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage, recommended operating range 2 V to 6 V, absolute maximum -0.5 V to +7.0 V."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The ordering table lists 74HC164AP twice, once as SOP (50 pcs/tube) and once as TSSOP14L (60 pcs/tub; Pin descriptions for A, B and CLEAR come from the Chinese overview text and truth table. The datashe",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.2238,
        "at": "2026-10-23T12:01:33"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3fff4b16835eec7317f0dbd4391d761e.pdf",
        "pages": 6,
        "sha256": "509ce0913a7e6555",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-23",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Sungine",
      "Package": "SOP-14",
      "Category": "Logic",
      "Pins": "14"
    },
    "characteristics": {
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      "source": "datasheet",
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          "max": 7,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Clamp diode current",
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        {
          "name": "Power dissipation SOP",
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          "conditions": "10 s",
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        {
          "name": "Input rise/fall time (clear input)",
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          "max": 1000,
          "conditions": "VCC=2.0V",
          "source_page": 3,
          "source": "datasheet"
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          "name": "Input rise/fall time (clear input)",
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          "typ": null,
          "max": 500,
          "conditions": "VCC=4.5V",
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          "name": "Input rise/fall time (clear input)",
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          "kind": "recommended_operating",
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          "conditions": "VCC=6.0V",
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          "conditions": "VCC=4.5V, Ta=25℃ and -40~85℃",
          "source_page": 3,
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          "name": "Min high-level input voltage",
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          "source_page": 3,
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          "name": "Min high-level output voltage",
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        {
          "name": "Min high-level output voltage",
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          "min": 4.4,
          "typ": 4.5,
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          "conditions": "VIN=VIH or VIL, Iout≤20µA, VCC=4.5V, Ta=25℃",
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          "source": "datasheet"
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          "name": "Min high-level output voltage",
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          "unit": "V",
          "min": 5.9,
          "typ": 6,
          "max": null,
          "conditions": "VIN=VIH or VIL, Iout≤20µA, VCC=6.0V, Ta=25℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Min high-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.98,
          "typ": 4.2,
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          "conditions": "VIN=VIH or VIL, Iout≤4.0mA, VCC=4.5V, Ta=25℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Min high-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.48,
          "typ": 5.7,
          "max": null,
          "conditions": "VIN=VIH or VIL, Iout≤5.2mA, VCC=6.0V, Ta=25℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Min high-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.84,
          "typ": null,
          "max": null,
          "conditions": "VIN=VIH or VIL, Iout≤4.0mA, VCC=4.5V, Ta=-40~85℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Min high-level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 5.34,
          "typ": null,
          "max": null,
          "conditions": "VIN=VIH or VIL, Iout≤5.2mA, VCC=6.0V, Ta=-40~85℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Max low-level output voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0,
          "max": 0.1,
          "conditions": "VIN=VIH or VIL, Iout≤20µA, VCC=2.0/4.5/6.0V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Max low-level output voltage",
          "symbol": "VOL",
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          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.26,
          "conditions": "VIN=VIH or VIL, Iout≤4.0mA, VCC=4.5V, Ta=25℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Max low-level output voltage",
          "symbol": "VOL",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.33,
          "conditions": "VIN=VIH or VIL, Iout≤4.0mA/5.2mA, VCC=4.5V/6.0V, Ta=-40~85℃",
          "source_page": 3,
          "source": "datasheet"
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          "name": "Max input current",
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          "kind": "electrical",
          "unit": "µA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VIN=VCC or GND, VCC=6.0V, Ta=25℃",
          "source_page": 3,
          "source": "datasheet"
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          "name": "Max input current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=VCC or GND, VCC=6.0V, Ta=-40~85℃",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Max quiescent supply current",
          "symbol": "ICC",
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          "unit": "µA",
          "min": null,
          "typ": 8,
          "max": 80,
          "conditions": "VIN=VCC or GND, IOUT=0µA, VCC=6.0V",
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          "source": "datasheet"
        },
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          "name": "Max operating frequency",
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          "kind": "timing",
          "unit": "MHz",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
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          "kind": "timing",
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          "typ": 19,
          "max": 30,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Max propagation delay clear to output",
          "symbol": "tPHL, tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 23,
          "max": 35,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Min removal time clear to clock",
          "symbol": "tREM",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": -2,
          "max": 0,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Min setup time data to clock",
          "symbol": "tS",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 12,
          "max": 20,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Min hold time clock to data",
          "symbol": "tH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 1,
          "max": 5,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Min pulse width clear or clock",
          "symbol": "tW",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 10,
          "max": 16,
          "conditions": "VCC=5V, TA=25℃, CL=15pF, tr=tf=6ns",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Max input rise/fall time",
          "symbol": "tr, tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "VCC=2.0V, CL=50pF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max input rise/fall time",
          "symbol": "tr, tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "VCC=4.5V, CL=50pF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max input rise/fall time",
          "symbol": "tr, tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "VCC=6.0V, CL=50pF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max input capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "PF",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation capacitance",
          "symbol": "CPD",
          "kind": "electrical",
          "unit": "PF",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VCC=5.0V",
          "source_page": 5,
          "source": "datasheet"
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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    "viewers/footprint.html",
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    "74hc164ap-hero.overlay.json",
    "74hc164ap-etched.glb"
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  }
}