main
Ray Set visibility: public 914c5cb 6d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "tc9402cpd",
  "title": "TC9402CPD",
  "brief": "Microchip Tech Voltage-to-Frequency / Frequency-to-Voltage Converters, PDIP-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",
    "adc-dac-data conversion",
    "tc9402cpd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TC9402CPD",
    "manufacturer": "Microchip Tech",
    "package": "PDIP-14",
    "pin_count": 14,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Voltage-to-Frequency / Frequency-to-Voltage Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ed9288ec3e71cbd795fdaebdda85de3b.pdf",
    "parts": {
      "symbol": "tc9402cpd.kicad_sym",
      "footprint": "tc9402cpd.kicad_mod",
      "model_3d": "tc9402cpd-hero.glb",
      "model_3d_plain": "tc9402cpd-etched.glb",
      "model_3d_step": "tc9402cpd-etched.step",
      "model_3d_step_plain": "tc9402cpd.step",
      "lbr": "tc9402cpd.lbr"
    },
    "distributor_links": {
      "lcsc": "C645952",
      "digikey": "TC9402CPD-ND",
      "mouser": "579-TC9402CPD"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:39:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TC9402CPD-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-TC9402CPD",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IBIAS",
        "type": "passive",
        "description": "Sets the bias current in the device; connect to VSS through a 100 kΩ resistor (RBIAS = 100 kΩ ±10% for specifications)."
      },
      {
        "number": "2",
        "name": "ZERO ADJ",
        "type": "input",
        "description": "Low frequency adjustment input; non-inverting input of the operational amplifier that sets the low frequency set point."
      },
      {
        "number": "3",
        "name": "IIN",
        "type": "input",
        "description": "Input current connection (inverting input/summing junction of the op amp) for the V/F converter; 10 µA full-scale specified, over-range up to 50 µA usable."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative power supply voltage connection, typically -5V (operating range -4V to -7.5V)."
      },
      {
        "number": "5",
        "name": "VREF OUT",
        "type": "power_in",
        "description": "Reference capacitor (CREF) connection through which the charging current for CREF is supplied."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "7",
        "name": "VREF",
        "type": "power_in",
        "description": "Voltage reference input, typically -5V, requiring a low-impedance source with a 0.1 µF bypass capacitor to ground."
      },
      {
        "number": "8",
        "name": "PULSE FREQ OUT",
        "type": "output",
        "description": "Open-drain N-channel frequency output that pulses LOW each time the threshold detector limit is reached, with pulse rate proportional to input voltage; requires a pull-up resistor."
      },
      {
        "number": "9",
        "name": "OUTPUT COMMON",
        "type": "passive",
        "description": "Source connection for the open-drain output FETs (PULSE FREQ OUT and FREQ/2 OUT)."
      },
      {
        "number": "10",
        "name": "FREQ/2 OUT",
        "type": "output",
        "description": "Open-drain square-wave output at one-half the frequency of the pulse output (pin 8), transitioning on the rising edge of pin 8; requires a pull-up resistor."
      },
      {
        "number": "11",
        "name": "THRESHOLD DETECTOR",
        "type": "input",
        "description": "Input to the threshold detector (nominal threshold (VDD+VSS)/2 ±400 mV); the frequency input in F/V operation and connected to AMPLIFIER OUT in V/F mode."
      },
      {
        "number": "12",
        "name": "AMPLIFIER OUT",
        "type": "output",
        "description": "Output of the integrator amplifier, with a negative-going ramp in V/F mode and a voltage proportional to input frequency in F/V mode."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply connection, typically +5V (operating range +4V to +7.5V)."
      }
    ],
    "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 13 is NC in the pin table, but section 4.2.2 says to locate CINT close to Pins 12 and 13, which ; The PDIP package drawing page is not in the provided text. The package was inferred from the 14-pin "
        ],
        "pages_sent": 13,
        "cost_usd": 0.1024,
        "at": "2026-10-31T18:39:07"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ed9288ec3e71cbd795fdaebdda85de3b.pdf",
        "pages": 28,
        "sha256": "4a8d279f0b7aa143",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tc9402cpd.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.05,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3dae072a95c64bee0d1e58be8e75383639f5017ab982de1749d05808a4eed058",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc9402cpd-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.05,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b67ed270e6207fb3d36102874e32ac3925361cafa7ca61099d7ff0d7ea1a5f58",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "PD",
      "source_page": 20,
      "D": {
        "nom_mm": 19.05,
        "range_mm": [
          18.669,
          19.685
        ]
      },
      "E1": {
        "nom_mm": 6.35,
        "range_mm": [
          6.096,
          7.112
        ]
      },
      "E": {
        "nom_mm": 7.874,
        "range_mm": [
          7.366,
          8.255
        ]
      },
      "e": {
        "nom_mm": 2.54,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 5.334,
        "range_mm": [
          null,
          5.334
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "tc9402cpd.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "PDIP-14",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4a8d279f0b7aa143d4daa59039172c55f72e9456883a573e963dc2fe206fa721",
      "rows": [
        {
          "name": "Linearity 10 kHz Full Scale",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.05,
          "max": 0.25,
          "conditions": "V/F, Output Deviation from Straight Line Between Normalized Zero and Full Scale Input",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Linearity 100 kHz Full Scale",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.25,
          "max": 0.5,
          "conditions": "V/F, Output Deviation from Straight Line Between Normalized Zero Reading and Full Scale Input",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Gain Temperature Drift",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -100,
          "typ": 50,
          "max": 100,
          "conditions": "Full Scale, Variation in Gain A due to Temperature Change (Note 1)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero Offset",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -100,
          "typ": 20,
          "max": 100,
          "conditions": "Correction at Zero Adjust for Zero Output when Input is Zero (Note 2)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero Temperature Drift",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "µV/°C",
          "min": -100,
          "typ": 50,
          "max": 100,
          "conditions": "Variation in Zero Offset Due to Temperature Change (Note 1)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "IIN Over Range",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Over Range Current",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VSAT @ IOL = 10mA",
          "symbol": "VSAT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "Logic \"0\" Output Voltage (Note 3)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VOUTMAX – VOUT Common",
          "symbol": "VOUTMAX – VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "Voltage Range Between Output and Common (Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "IDD Quiescent (F/V)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "Current Required from Positive Supply during Operation (Note 5)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ISS Quiescent (F/V)",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -3,
          "max": -10,
          "conditions": "Current Required from Negative Supply during Operation (Note 5)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD Supply (F/V)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 7.5,
          "conditions": "Operating Range of Positive Supply",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VSS Supply (F/V)",
          "symbol": "VSS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": -7.5,
          "conditions": "Operating Range of Negative Supply",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VREF – VSS (F/V)",
          "symbol": "VREF – VSS",
          "kind": "electrical",
          "unit": "V",
          "min": -2.5,
          "typ": null,
          "max": null,
          "conditions": "Range of Voltage Reference Input",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Non-Linearity (F/V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.05,
          "max": 0.25,
          "conditions": "Full Scale, Deviation from ideal Transfer Function (Note 10)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency Input Positive Excursion",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": null,
          "max": null,
          "conditions": "Voltage Required to Turn Threshold Detector On",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Frequency Input Negative Excursion",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -0.4,
          "typ": null,
          "max": -2,
          "conditions": "Voltage Required to Turn Threshold Detector Off",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Loading",
          "symbol": "",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "Resistive Loading at Output of Op Amp",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "IDD Quiescent (analog)",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "Current Required from Positive Supply During Operation (Note 10)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ISS Quiescent (analog)",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -3,
          "max": -10,
          "conditions": "Current Required from Negative Supply During Operation (Note 10)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD Supply",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 7.5,
          "conditions": "Operating Range of Positive Supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VSS Supply",
          "symbol": "VSS",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": -7.5,
          "conditions": "Operating Range of Negative Supply",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VREF – VSS",
          "symbol": "VREF – VSS",
          "kind": "electrical",
          "unit": "V",
          "min": -2.5,
          "typ": null,
          "max": null,
          "conditions": "Range of Voltage Reference Input",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Gain Variance",
          "symbol": "",
          "kind": "electrical",
          "unit": "% of Nominal",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Variation from Ideal Accuracy, printed ±10",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "IIN Full Scale",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Full Scale Analog Input Current to achieve Specified Accuracy",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Response Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "Cycle",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "Settling Time to 0.1% Full Scale",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pulse Frequency Output Width",
          "symbol": "",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Positive Pulse Width",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "Time between Threshold Crossings (Note 8)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum Negative Pulse Width",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "Time Between Threshold Crossings (Note 8)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Impedance",
          "symbol": "",
          "kind": "electrical",
          "unit": "MΩ",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDD – VSS",
          "symbol": "VDD – VSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input current IIN",
          "symbol": "IIN",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VREF – VSS",
          "symbol": "VREF – VSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range, C Device",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "C Device",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tc9402cpd"
  ],
  "discovery_pitch": "TC9402CPD (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "tc9402cpd.kicad_sym",
    "tc9402cpd.kicad_mod",
    "tc9402cpd.glb",
    "tc9402cpd.step",
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