component
ISD4002-120PY
Public Made by Adomby adom
Nuvoton Tech Audio Interface ICs, DIP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "isd4002-120py",
"version": "0.1.0",
"type": "component",
"description": "Nuvoton Tech Audio Interface ICs, DIP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"communication interface chip-uart-485-232",
"isd4002-120py",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
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"isd4002-120py.kicad_mod",
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"isd4002-120py.step",
"isd4002-120py.lbr",
"docs/hero.png",
"docs/isd4002-120py-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"isd4002-120py-hero.glb",
"isd4002-120py-hero.overlay.json",
"isd4002-120py-etched.glb"
],
"component": {
"mpn": "ISD4002-120PY",
"manufacturer": "Nuvoton Tech",
"package": "DIP-28",
"pin_count": 28,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Audio Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9fb3d15d65378bc8e4078697458f8f58.pdf",
"parts": {
"symbol": "isd4002-120py.kicad_sym",
"footprint": "isd4002-120py.kicad_mod",
"model_3d": "isd4002-120py-hero.glb",
"model_3d_plain": "isd4002-120py-etched.glb",
"model_3d_step": "isd4002-120py-etched.step",
"model_3d_step_plain": "isd4002-120py.step",
"lbr": "isd4002-120py.lbr"
},
"distributor_links": {
"lcsc": "C2613383",
"digikey": "ISD4002-120PY-ND",
"mouser": "503-ISD4002-120PY"
},
"distributor_check": {
"checked_at": "2026-10-30T17:05:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ISD4002-120PY-ND",
"status": "found",
"lifecycle": "Obsolete"
},
"mouser": {
"pn": "503-ISD4002-120PY",
"status": "found",
"lifecycle": "Obsolete"
}
},
"pins": [
{
"number": "1",
"name": "SS",
"type": "input",
"description": "Slave Select: when LOW, this input selects the ISD4002 device."
},
{
"number": "2",
"name": "MOSI",
"type": "input",
"description": "Master Out Slave In: serial data input to the device in slave mode, with data placed by the master one half-cycle before the SCLK rising edge."
},
{
"number": "3",
"name": "MISO",
"type": "tri_state",
"description": "Master In Slave Out: serial data output of the device, which goes to a high-impedance state when the device is not selected."
},
{
"number": "4",
"name": "VSSD",
"type": "power_in",
"description": "Digital ground, connected through a separate low-impedance path to power supply ground, with impedance to the VSSA pins less than 3 Ω."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "6",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "7",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "8",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "9",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "11",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground, to be tied together with the other VSSA pins as close as possible and connected through a low-impedance path to power supply ground."
},
{
"number": "12",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground, to be tied together with the other VSSA pins as close as possible and connected through a low-impedance path to power supply ground."
},
{
"number": "13",
"name": "AUD OUT",
"type": "output",
"description": "Audio output of the stored data, recommended to be AC coupled and capable of driving a load as small as 5 kΩ in playback; the pin is always at 1.2 V when powered up."
},
{
"number": "14",
"name": "AM CAP",
"type": "passive",
"description": "AutoMute capacitor pin, where a 1 µF capacitor to ground is recommended; connecting this pin directly to VCCA disables the AutoMute feature."
},
{
"number": "15",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "16",
"name": "ANA IN-",
"type": "input",
"description": "Inverting analog input for differential recording, with a 16 mVp-p maximum input signal and a normal input impedance of 56 kΩ."
},
{
"number": "17",
"name": "ANA IN+",
"type": "input",
"description": "Non-inverting analog input for recording, with a 32 mVp-p maximum signal in single-ended mode and 16 mVp-p maximum in differential mode."
},
{
"number": "18",
"name": "VCCA",
"type": "power_in",
"description": "Analog +3 V supply, to be tied together with VCCD as close to the supply as possible and decoupled close to the package."
},
{
"number": "19",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "20",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "21",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "22",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "23",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground, to be tied together with the other VSSA pins as close as possible and connected through a low-impedance path to power supply ground."
},
{
"number": "24",
"name": "RAC",
"type": "output",
"description": "Row Address Clock, an open-drain output with a 200 ms period at 8 kHz sampling that requires a pull-up resistor to connect to other devices."
},
{
"number": "25",
"name": "INT",
"type": "output",
"description": "Interrupt, an open-drain output that goes and stays LOW on an Overflow or End of Message marker and requires a pull-up resistor."
},
{
"number": "26",
"name": "XCLK",
"type": "input",
"description": "External clock input, which for the ISD4002-120 is 1024 kHz and must be connected to ground if not used."
},
{
"number": "27",
"name": "VCCD",
"type": "power_in",
"description": "Digital +3 V supply, to be tied together with VCCA as close to the supply as possible and decoupled close to the package."
},
{
"number": "28",
"name": "SCLK",
"type": "input",
"description": "Serial Clock input from the master device, with data latched on the rising edge and shifted out on the falling edge."
}
],
"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 pin configuration figure (page 5) is a text extraction in which the SOIC/PDIP pin layout is shar; The NC pins are listed as 5-10, 15, 19-22 in the datasheet, and each is shown here as a separate ent; The datasheet states that RAC and INT are open-drain outputs and MISO is not open-drain (version his"
],
"pages_sent": 14,
"cost_usd": 0.0679,
"at": "2026-10-30T17:04:54"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/9fb3d15d65378bc8e4078697458f8f58.pdf",
"pages": 33,
"sha256": "d68fa2e09a581f87",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
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7.874,
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"zmin_mm": -3.3,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "7bf4503e368ad9b7a3eddfa94bc8dee656da5d6921b677e17307b3d7f29177ab",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "isd4002-120py-etched.step",
"role": "eda",
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"origin": "footprint origin = pad-pattern centre",
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"sha256": "b6a664e574791e9721ac28cce8a95a73cb4ea666f7bc74ef378dcf50da3069d2",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}