component
TC9402CPD
Public Made by Adomby adom
Microchip Tech Voltage-to-Frequency / Frequency-to-Voltage Converters, PDIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "tc9402cpd",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Voltage-to-Frequency / Frequency-to-Voltage Converters, PDIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"adc-dac-data conversion",
"tc9402cpd",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"tc9402cpd.kicad_sym",
"tc9402cpd.kicad_mod",
"tc9402cpd.glb",
"tc9402cpd.step",
"tc9402cpd.lbr",
"docs/hero.png",
"docs/tc9402cpd-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"tc9402cpd-hero.glb",
"tc9402cpd-hero.overlay.json",
"tc9402cpd-etched.glb"
],
"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": 0.0,
"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
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"zmin_mm": -3.3,
"centre_offset_mm": 0.0,
"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": [
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],
"by": "factory/package_fit.py"
}
}
}
}