MC74AC4040DR2G

{
  "schema_version": 1,
  "type": "component",
  "slug": "mc74ac4040dr2g",
  "title": "MC74AC4040DR2G",
  "brief": "onsemi Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "logic",
    "mc74ac4040dr2g",
    "factory-2.0.0",
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  "component": {
    "mpn": "MC74AC4040DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/mc74ac4040-d.pdf",
    "parts": {
      "symbol": "mc74ac4040dr2g.kicad_sym",
      "footprint": "mc74ac4040dr2g.kicad_mod",
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      "model_3d_plain": "mc74ac4040dr2g-etched.glb",
      "model_3d_step": "mc74ac4040dr2g-etched.step",
      "model_3d_step_plain": "mc74ac4040dr2g.step",
      "lbr": "mc74ac4040dr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C903983",
      "digikey": "MC74AC4040DR2GOSTR-ND",
      "mouser": "863-MC74AC4040DR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T22:06:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MC74AC4040DR2GOSTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "863-MC74AC4040DR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Q12",
        "type": "output",
        "description": "Stage 12 binary ripple counter output, half the frequency of Q11; outputs source/sink 24 mA."
      },
      {
        "number": "2",
        "name": "Q6",
        "type": "output",
        "description": "Stage 6 binary ripple counter output, half the frequency of Q5; outputs source/sink 24 mA."
      },
      {
        "number": "3",
        "name": "Q5",
        "type": "output",
        "description": "Stage 5 binary ripple counter output, half the frequency of Q4; outputs source/sink 24 mA."
      },
      {
        "number": "4",
        "name": "Q7",
        "type": "output",
        "description": "Stage 7 binary ripple counter output, half the frequency of Q6; outputs source/sink 24 mA."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Stage 4 binary ripple counter output, half the frequency of Q3; outputs source/sink 24 mA."
      },
      {
        "number": "6",
        "name": "Q3",
        "type": "output",
        "description": "Stage 3 binary ripple counter output, half the frequency of Q2; outputs source/sink 24 mA."
      },
      {
        "number": "7",
        "name": "Q2",
        "type": "output",
        "description": "Stage 2 binary ripple counter output, half the frequency of Q1; outputs source/sink 24 mA."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; all voltages are referenced to this pin."
      },
      {
        "number": "9",
        "name": "Q1",
        "type": "output",
        "description": "Stage 1 binary ripple counter output, half the clock frequency; outputs source/sink 24 mA."
      },
      {
        "number": "10",
        "name": "CLK",
        "type": "input",
        "description": "Clock input; the counter advances on the negative-going edge of this input."
      },
      {
        "number": "11",
        "name": "RESET",
        "type": "input",
        "description": "Asynchronous active-high reset; a high level forces all Q outputs low."
      },
      {
        "number": "12",
        "name": "Q9",
        "type": "output",
        "description": "Stage 9 binary ripple counter output, half the frequency of Q8; outputs source/sink 24 mA."
      },
      {
        "number": "13",
        "name": "Q8",
        "type": "output",
        "description": "Stage 8 binary ripple counter output, half the frequency of Q7; outputs source/sink 24 mA."
      },
      {
        "number": "14",
        "name": "Q10",
        "type": "output",
        "description": "Stage 10 binary ripple counter output, half the frequency of Q9; outputs source/sink 24 mA."
      },
      {
        "number": "15",
        "name": "Q11",
        "type": "output",
        "description": "Stage 11 binary ripple counter output, half the frequency of Q10; outputs source/sink 24 mA."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; operating voltage range 2.0 V to 6.0 V referenced to GND."
      }
    ],
    "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 16-lead pin assignment was read from the garbled text of the Figure 1 top view and cross-checked"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0494,
        "at": "2026-10-27T22:06:32"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/mc74ac4040-d.pdf",
        "pages": 7,
        "sha256": "cc16d5e989314d53",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "zmin_mm": 0,
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        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-27",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-16",
      "Category": "Logic",
      "Pins": "16"
    },
    "characteristics": {
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      "source": "datasheet",
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      "rows": [
        {
          "name": "DC Supply Voltage (Referenced to GND)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 6,
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          "name": "Operating Temperature, All Package Types",
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        {
          "name": "Input Rise/Fall Time",
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          "kind": "recommended_operating",
          "unit": "ns/V",
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          "typ": null,
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          "conditions": "VCC = 4.5 V (Figure 1)",
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        {
          "name": "Input Rise/Fall Time",
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          "kind": "recommended_operating",
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        {
          "name": "DC Input Diode Current",
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          "unit": "mA",
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        },
        {
          "name": "DC Supply Current per Output Pin",
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          "unit": "mA",
          "min": -50,
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          "conditions": "",
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          "name": "DC Ground Current per Output Pin",
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          "unit": "°C",
          "min": -65,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Lead temperature",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "1 mm from case for 10 seconds",
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        {
          "name": "Junction temperature under bias",
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          "kind": "absolute_maximum",
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        },
        {
          "name": "ESD Withstand Voltage, Human Body Model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2000,
          "typ": null,
          "max": null,
          "conditions": "Human Body Model (Note 4); printed as > 2000 V",
          "source_page": 3,
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        {
          "name": "ESD Withstand Voltage, Machine Model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
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          "conditions": "Machine Model (Note 5); printed as > 200 V",
          "source_page": 3,
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        },
        {
          "name": "ESD Withstand Voltage, Charged Device Model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 1000,
          "typ": null,
          "max": null,
          "conditions": "Charged Device Model (Note 6); printed as > 1000 V",
          "source_page": 3,
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        {
          "name": "Latch-Up Performance",
          "symbol": "ILatch-Up",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "Above VCC and below GND at 85°C (Note 7)",
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        },
        {
          "name": "Maximum Quiescent Supply Current (printed label: Maximum Quiescent Supply Voltage)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "Vin = VCC or GND; VCC = 5.5 V, TA = Worst Case",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Quiescent Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "Vin = VCC or GND; VCC = 5.5 V, TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Input Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.1,
          "typ": null,
          "max": null,
          "conditions": "VCC = 3.0 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Input Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.15,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.5 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Minimum High Level Input Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.85,
          "typ": null,
          "max": null,
          "conditions": "VCC = 5.5 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Low Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "VCC = 3.0 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Low Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.35,
          "conditions": "VCC = 4.5 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Low Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.65,
          "conditions": "VCC = 5.5 V; VOUT = 0.1 V or VCC - 0.1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": 2.99,
          "max": null,
          "conditions": "VCC = 3.0 V; IOUT = -50 A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": 4.49,
          "max": null,
          "conditions": "VCC = 4.5 V; IOUT = -50 A",
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        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
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          "min": 5.4,
          "typ": 5.49,
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          "conditions": "VCC = 5.5 V; IOUT = -50 A",
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          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
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          "min": 2.46,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIL or VIH; VCC = 3.0 V; IOH = -12 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.76,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIL or VIH; VCC = 4.5 V; IOH = -24 mA",
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          "source": "datasheet"
        },
        {
          "name": "Minimum High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.76,
          "typ": null,
          "max": null,
          "conditions": "VIN = VIL or VIH; VCC = 5.5 V; IOH = -24 mA",
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        },
        {
          "name": "Maximum Low Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.002,
          "max": 0.1,
          "conditions": "VCC = 3.0 V; IOUT = 50 A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Low Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.001,
          "max": 0.1,
          "conditions": "VCC = 4.5 V; IOUT = 50 A",
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        },
        {
          "name": "Maximum Low Level Output Voltage",
          "symbol": "VOL",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.44,
          "conditions": "VIN = VIL or VIH; VCC = 3.0 V; IOL = 12 mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Input Leakage Current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "A",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI = VCC, GND; VCC = 5.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Dynamic Output Current (low)",
          "symbol": "IOLD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "VOLD = 1.65 V Max; VCC = 5.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Dynamic Output Current (high)",
          "symbol": "IOHD",
          "kind": "electrical",
          "unit": "mA",
          "min": -75,
          "typ": null,
          "max": null,
          "conditions": "VOHD = 3.85 V Min; VCC = 5.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clock Frequency",
          "symbol": "fmax",
          "kind": "timing",
          "unit": "MHz",
          "min": 100,
          "typ": 120,
          "max": null,
          "conditions": "VCC = 3.3 V; CL = 50 pF; min at TA = -40 to +85°C, typ at 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clock Frequency",
          "symbol": "fmax",
          "kind": "timing",
          "unit": "MHz",
          "min": 120,
          "typ": 140,
          "max": null,
          "conditions": "VCC = 5.0 V; CL = 50 pF; min at TA = -40 to +85°C, typ at 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "nCP to Q1 Propagation Delay",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": null,
          "max": 14,
          "conditions": "VCC = 3.3 V; CL = 50 pF; TA = -40 to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "nCP to Q1 Propagation Delay",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": 2,
          "typ": null,
          "max": 10,
          "conditions": "VCC = 5.0 V; CL = 50 pF; TA = -40 to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Qn to Qn+1 Propagation Delay",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 6.5,
          "conditions": "VCC = 3.3 V; CL = 50 pF; TA = -40 to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Qn to Qn+1 Propagation Delay",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 4.5,
          "conditions": "VCC = 5.0 V; CL = 50 pF; TA = -40 to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "MR to Q Propagation Delay",
          "symbol": "tHL",
          "kind": "timing",
          "unit": "ns",
          "min": 3,
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