component
AT32F425F8P7
Public Made by Adomby adom
ARTERY Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312
{
"slug": "at32f425f8p7",
"version": "0.1.0",
"type": "component",
"description": "ARTERY Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"at32f425f8p7",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"at32f425f8p7.kicad_sym",
"at32f425f8p7.kicad_mod",
"at32f425f8p7.glb",
"at32f425f8p7.step",
"at32f425f8p7.lbr",
"docs/hero.png",
"docs/at32f425f8p7-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"at32f425f8p7-hero.glb",
"at32f425f8p7-hero.overlay.json",
"at32f425f8p7-etched.glb"
],
"component": {
"mpn": "AT32F425F8P7",
"manufacturer": "ARTERY",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/907d497e688dd3109d5c2414ed742864.pdf",
"parts": {
"symbol": "at32f425f8p7.kicad_sym",
"footprint": "at32f425f8p7.kicad_mod",
"model_3d": "at32f425f8p7-hero.glb",
"model_3d_plain": "at32f425f8p7-etched.glb",
"model_3d_step": "at32f425f8p7-etched.step",
"model_3d_step_plain": "at32f425f8p7.step",
"lbr": "at32f425f8p7.lbr"
},
"distributor_links": {
"lcsc": "C4153157"
},
"distributor_check": {
"checked_at": "2026-11-05T01:41:12Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "BOOT0",
"type": "input",
"description": "Dedicated boot mode select pin 0 with a built-in weak pull-down that cannot be disabled; together with user system data bit nBOOT1 it selects the boot source at startup."
},
{
"number": "2",
"name": "PF0",
"type": "bidirectional",
"description": "Standard-level (TC) I/O with input voltage limited to VSS-0.3 to 4.0 V, not 5 V tolerant; alternate function TMR1_CH1, additional function HEXT_IN."
},
{
"number": "3",
"name": "PF1",
"type": "bidirectional",
"description": "Standard-level (TC) I/O with input voltage limited to VSS-0.3 to 4.0 V, not 5 V tolerant; alternate functions TMR1_CH2C, SPI2_CS and I2S2_WS, additional function HEXT_OUT."
},
{
"number": "4",
"name": "NRST",
"type": "bidirectional",
"description": "Active-low device reset input and internal reset output with an internal pull-up (RPU 30 to 50 kΩ) that cannot be disconnected; VIL max 0.8 V and VIH min 2 V."
},
{
"number": "5",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply for the ADC, 2.4 to 3.6 V, which must be at the same potential as VDD."
},
{
"number": "6",
"name": "PA0",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN0 and WKUP1."
},
{
"number": "7",
"name": "PA1",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN1."
},
{
"number": "8",
"name": "PA2",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN2 and WKUP4, and USART2_TX is used for bootloader."
},
{
"number": "9",
"name": "PA3",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN3, and USART2_RX is used for bootloader."
},
{
"number": "10",
"name": "PA4",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN4."
},
{
"number": "11",
"name": "PA5",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN5."
},
{
"number": "12",
"name": "PA6",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN6."
},
{
"number": "13",
"name": "PA7",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN7."
},
{
"number": "14",
"name": "PB1",
"type": "bidirectional",
"description": "FTa I/O that is 5 V tolerant only in input float, pull-up or pull-down mode (in analog mode the input must stay below VDD+0.3 V); provides ADC1_IN9."
},
{
"number": "15",
"name": "VSS",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "16",
"name": "VDD",
"type": "power_in",
"description": "Digital supply pin, 2.4 to 3.6 V, supplying GPIO, ERTC, LEXT, BPR and the internal LDO."
},
{
"number": "17",
"name": "PA9 (PA11)",
"type": "bidirectional",
"description": "TC-type I/O that is not 5 V tolerant on TSSOP20; default function PA9 (USART1_TX, TMR15_BRK, I2C1_SCL), and when OTGFS1 is not used PA11 can be remapped onto this pin by software, while OTGFS1_D- takes over the pin when OTGFS1 is enabled."
},
{
"number": "18",
"name": "PA10 (PA12)",
"type": "bidirectional",
"description": "TC-type I/O that is not 5 V tolerant on TSSOP20; default function PA10 (USART1_RX, TMR17_BRK, I2C1_SDA), and when OTGFS1 is not used PA12 can be remapped onto this pin by software, while OTGFS1_D+ takes over the pin when OTGFS1 is enabled."
},
{
"number": "19",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant FT I/O that after reset is configured as SWDIO with its internal pull-up enabled; alternate functions include IR_OUT, OTGFS1_OE and I2C1_SDA."
},
{
"number": "20",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant FT I/O that after reset is configured as SWCLK with its internal pull-down enabled; alternate functions include USART2_TX, SPI3_MOSI and I2C1_SMBA."
}
],
"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: Pin 17 and pin 18 each appear in two rows of Table 5 (PA9/PA11 and PA10/PA12). Footnote 3 on page 30; Footnote 4 (page 30) says the TSSOP20 PA9/PA10 pins do not have 5 V tolerance, so these pins are TC-; NRST is printed as I/O type R (bidirectional reset pin with internal pull-up). It is mapped as bidir"
],
"pages_sent": 71,
"cost_usd": 0.2215,
"at": "2026-11-05T01:40:57"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/907d497e688dd3109d5c2414ed742864.pdf",
"pages": 79,
"sha256": "eaf33a9399a9b187",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "at32f425f8p7.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "at32f425f8p7-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "8e4b7bf4f30d5ffcd563da5a7c8c3e55748e3ce503a0a94346f1b35b405a1c75",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "TSSOP20",
"source_page": 74,
"D": {
"nom_mm": 6.5,
"range_mm": [
6.4,
6.6
]
},
"E1": {
"nom_mm": 4.4,
"range_mm": [
4.3,
4.5
]
},
"E": {
"nom_mm": 6.4,
"range_mm": [
6.2,
6.6
]
},
"e": {
"nom_mm": 0.65,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.2,
"range_mm": [
null,
1.2
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "at32f425f8p7.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}