CD74HC4017QPWRG4Q1

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  "title": "CD74HC4017QPWRG4Q1",
  "brief": "Texas Instruments Counters / Dividers, TSSOP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "CD74HC4017QPWRG4Q1",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic ICs",
    "subcategory": "Counters / Dividers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc4017qpwrg4q1.pdf",
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    "distributor_links": {
      "lcsc": "C2675441",
      "digikey": "296-31586-2-ND",
      "mouser": "595-74HC4017QPWRG4Q1"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:48:20Z",
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    },
    "pins": [
      {
        "number": "1",
        "name": "5",
        "type": "output",
        "description": "Decoded output 5 is normally low, goes high during clock period 5 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "2",
        "name": "1",
        "type": "output",
        "description": "Decoded output 1 is normally low, goes high during clock period 1 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "3",
        "name": "0",
        "type": "output",
        "description": "Decoded output 0 goes high during clock period 0 of the ten-clock-period cycle and is the only decoded output that MR sets high."
      },
      {
        "number": "4",
        "name": "2",
        "type": "output",
        "description": "Decoded output 2 is normally low, goes high during clock period 2 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "5",
        "name": "6",
        "type": "output",
        "description": "Decoded output 6 is normally low, goes high during clock period 6 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "6",
        "name": "7",
        "type": "output",
        "description": "Decoded output 7 is normally low, goes high during clock period 7 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "7",
        "name": "3",
        "type": "output",
        "description": "Decoded output 3 is normally low, goes high during clock period 3 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; all voltages are referenced to GND."
      },
      {
        "number": "9",
        "name": "8",
        "type": "output",
        "description": "Decoded output 8 is normally low, goes high during clock period 8 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "10",
        "name": "4",
        "type": "output",
        "description": "Decoded output 4 is normally low, goes high during clock period 4 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "11",
        "name": "9",
        "type": "output",
        "description": "Decoded output 9 is normally low, goes high during clock period 9 of the ten-clock-period cycle, and is forced low by a high MR."
      },
      {
        "number": "12",
        "name": "TC",
        "type": "output",
        "description": "Carry output goes low to high after output 9 goes high to low, is high when the count n is less than 5 and low otherwise, and is used with CE to cascade stages."
      },
      {
        "number": "13",
        "name": "~{CE}",
        "type": "input",
        "description": "Clock enable; a high level disables counting."
      },
      {
        "number": "14",
        "name": "CP",
        "type": "input",
        "description": "Clock input; the counter increments on the low-to-high transition when CE and MR are low (positive-edge clocking)."
      },
      {
        "number": "15",
        "name": "MR",
        "type": "input",
        "description": "Master reset; when taken high it sets output 0 high and all other decoded outputs low."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 2 V to 6 V per the recommended operating conditions."
      }
    ],
    "provenance": {
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      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hc4017qpwrg4q1.pdf",
        "pages": 15,
        "sha256": "dfb7c4361299bb41",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      },
      "correction": {
        "at": "2026-11-06",
        "what": "11 of 16 pins corrected",
        "how": "pinout replaced from review decision: ray (review) (); the previous pinout came from an earlier extraction",
        "symbol": "regenerated from the corrected pinout"
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    "package_dims": {
      "package_code": "PW0016A (TSSOP-16, PW)",
      "source_page": 12,
      "D": {
        "nom_mm": 5,
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "Logic ICs",
      "Pins": "16"
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        {
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          "name": "Low-level output voltage, TTL loads (VCC = 6 V)",
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          "min": null,
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          "conditions": "TTL loads, IO = 5.2 mA, VI = VIH or VIL, VCC = 6 V, TA = 25\u00b0C",
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        {
          "name": "Low-level output voltage, TTL loads (VCC = 6 V)",
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        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "\u00b5A",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = VCC or GND, VCC = 6 V, TA = 25\u00b0C",
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        {
          "name": "Input leakage current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "\u00b5A",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI = VCC or GND, VCC = 6 V, TA = \u221240\u00b0C to 125\u00b0C",
          "source_page": 3,
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        },
        {
          "name": "Quiescent supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "\u00b5A",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "VI = VCC or GND, IO = 0, VCC = 6 V, TA = 25\u00b0C",
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        {
          "name": "Quiescent supply current",
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          "unit": "\u00b5A",
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          "typ": null,
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          "conditions": "VI = VCC or GND, IO = 0, VCC = 6 V, TA = \u221240\u00b0C to 125\u00b0C",
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        },
        {
          "name": "Input capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
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          "max": 10,
          "conditions": "CL = 50 pF, TA = 25\u00b0C",
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          "name": "High-level input voltage",
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          "name": "High-level input voltage",
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          "name": "High-level input voltage",
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          "name": "Low-level input voltage",
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          "conditions": "VCC = 6 V",
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        {
          "name": "Input voltage",
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          "unit": "V",
          "min": 0,
          "typ": null,
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        {
          "name": "Output voltage",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
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        },
        {
          "name": "Input transition (rise and fall) time",
          "symbol": "tt",
          "kind": "recommended_operating",
          "unit": "ns",
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          "typ": null,
          "max": 1000,
          "conditions": "VCC = 2 V",
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        {
          "name": "Input transition (rise and fall) time",
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          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 500,
          "conditions": "VCC = 4.5 V",
          "source_page": 3,
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        {
          "name": "Input transition (rise and fall) time",
          "symbol": "tt",
          "kind": "recommended_operating",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "VCC = 6 V",
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          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "\u00b0C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Supply voltage range",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "see Note 1 (voltages referenced to GND)",
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        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < \u22120.5 V or VI > VCC + 0.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output clamp current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO < \u22120.5 V or VO > VCC + 0.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Source or sink current per output pin",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "VO > \u22120.5 V or VO < VCC + 0.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous current through VCC or GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Package thermal impedance, PW package",
          "symbol": "\u03b8JA",
          "kind": "thermal",
          "unit": "\u00b0C/W",
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          "source_page": 2,
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        },
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