component
AT32F423KCU7-4
Public Made by Adomby adom
ARTERY(雅特力) Microcontrollers (MCU/MPU/SOC), QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "at32f423kcu7-4",
"title": "AT32F423KCU7-4",
"brief": "ARTERY(雅特力) Microcontrollers (MCU/MPU/SOC), QFN-32-EP(4x4). 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",
"embedded processors & controllers",
"at32f423kcu7-4",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AT32F423KCU7-4",
"manufacturer": "ARTERY(雅特力)",
"package": "QFN-32-EP(4x4)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903459321765888",
"parts": {
"symbol": "at32f423kcu7-4.kicad_sym",
"footprint": "at32f423kcu7-4.kicad_mod",
"model_3d": "at32f423kcu7-4-hero.glb",
"model_3d_plain": "at32f423kcu7-4-etched.glb",
"model_3d_step": "at32f423kcu7-4-etched.step",
"model_3d_step_plain": "at32f423kcu7-4.step",
"lbr": "at32f423kcu7-4.lbr"
},
"distributor_links": {
"lcsc": "C7433166"
},
"distributor_check": {
"checked_at": "2026-10-18T03:43:40Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply for GPIO, ERTC, LEXT, BPR and the LDO, operating from 2.4 V to 3.6 V."
},
{
"number": "2",
"name": "PF0",
"type": "bidirectional",
"description": "Standard-level (TC) GPIO that doubles as the HEXT crystal input (HEXT_IN, 4-25 MHz) with TMR1_CH1 and I2C1_SDA alternate functions."
},
{
"number": "3",
"name": "PF1",
"type": "bidirectional",
"description": "Standard-level (TC) GPIO that doubles as the HEXT crystal output (HEXT_OUT) with TMR1_CH2C, I2C1_SCL, SPI2_CS and I2S2_WS alternate functions."
},
{
"number": "4",
"name": "NRST",
"type": "bidirectional",
"description": "Active-low device reset input and internal reset output with an internal weak pull-up of 30-50 kΩ, and it must be pulled below VIL(NRST) max of 0.8 V to reset the MCU."
},
{
"number": "5",
"name": "VDDA",
"type": "power_in",
"description": "Analog power supply for the ADC and DAC, which must be at the same potential as VDD."
},
{
"number": "6",
"name": "PA0",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input float/pull modes, not in analog mode where input must stay below VDD+0.3 V) with ADC1_IN0, WKUP1 and TAMP2 functions."
},
{
"number": "7",
"name": "PA1",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN1 and TMR2_CH2 / I2C2_SDA alternate functions."
},
{
"number": "8",
"name": "PA2",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN2 and USART2_TX / CAN2_RX alternate functions."
},
{
"number": "9",
"name": "PA3",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN3 and USART2_RX / CAN2_TX alternate functions."
},
{
"number": "10",
"name": "PA4",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN4 / DAC1_OUT and SPI1_CS / OTGFS1_OE alternate functions."
},
{
"number": "11",
"name": "PA5",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN5 / DAC2_OUT and SPI1_SCK alternate functions."
},
{
"number": "12",
"name": "PA6",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN6 and SPI1_MISO / TMR3_CH1 alternate functions."
},
{
"number": "13",
"name": "PA7",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN7 and SPI1_MOSI / TMR3_CH2 alternate functions."
},
{
"number": "14",
"name": "PB0",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN8 and SPI1_MISO / TMR1_CH2C alternate functions."
},
{
"number": "15",
"name": "PB1",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN9 and SPI1_MOSI / TMR1_CH3C alternate functions."
},
{
"number": "16",
"name": "PB2",
"type": "bidirectional",
"description": "FTa GPIO (5 V tolerant only in input modes; analog mode input must stay below VDD+0.3 V) with ADC1_IN20 and TMR2_CH4 / I2C3_SMBA alternate functions."
},
{
"number": "17",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply, operating from 2.4 V to 3.6 V."
},
{
"number": "18",
"name": "PA8",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with CLKOUT, TMR1_CH1, I2C3_SCL, USART1_CK and OTGFS1_SOF alternate functions."
},
{
"number": "19",
"name": "PA9",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with CLKOUT, TMR1_CH2, USART1_TX, I2C1_SCL and OTGFS1_VBUS alternate functions."
},
{
"number": "20",
"name": "PA10",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with ERTC_REFIN, TMR1_CH3, USART1_RX, I2C1_SDA and OTGFS1_ID alternate functions."
},
{
"number": "21",
"name": "PA11",
"type": "bidirectional",
"description": "Standard-level (TC) GPIO with OTGFS1_D- as a dedicated USB function plus USART1_CTS, CAN1_RX and TMR1_CH4 alternate functions."
},
{
"number": "22",
"name": "PA12",
"type": "bidirectional",
"description": "Standard-level (TC) GPIO with OTGFS1_D+ as a dedicated USB function plus USART1_RTS_DE, CAN1_TX and TMR1_EXT alternate functions."
},
{
"number": "23",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO that is the JTMS/SWDIO serial-wire debug data pin by default, with IR_OUT and OTGFS1_OE alternate functions."
},
{
"number": "24",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO that is the JTCK/SWCLK serial-wire debug clock pin by default, with USART2_TX, SPI3_MOSI and I2C1_SMBA alternate functions."
},
{
"number": "25",
"name": "PA15",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO that is the JTDI debug input pin by default, with TMR2_CH1, SPI1_CS, USART1_TX and XMC_NE2 alternate functions."
},
{
"number": "26",
"name": "PB3",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO that is the JTDO/SWO trace output pin by default, with TMR2_CH2, SPI1_SCK and USART1_RX alternate functions."
},
{
"number": "27",
"name": "PB4",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO that is the NJTRST debug reset pin by default, with TMR3_CH1, SPI1_MISO and USART1_CTS alternate functions."
},
{
"number": "28",
"name": "PB5",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with WKUP6 wake-up function plus TMR3_CH2, SPI1_MOSI, USART1_CK and CAN2_RX alternate functions."
},
{
"number": "29",
"name": "PB6",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with TMR4_CH1, I2C1_SCL, USART1_TX and CAN2_TX alternate functions."
},
{
"number": "30",
"name": "PB7",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with TMR4_CH2, I2C1_SDA, USART1_RX and XMC_NADV alternate functions."
},
{
"number": "31",
"name": "BOOT0",
"type": "input",
"description": "Dedicated boot mode selection pin 0 with a built-in weak pull-down that cannot be disabled, used together with the user system data nBOOT1 bit to select the boot source."
},
{
"number": "32",
"name": "PB8",
"type": "bidirectional",
"description": "5 V tolerant FT GPIO with TMR2_CH1, TMR4_CH3, I2C1_SCL, USART1_TX and CAN1_RX alternate functions."
},
{
"number": "33",
"name": "EPAD",
"type": "power_in",
"description": "Exposed pad that serves as the digital ground (VSS) and analog ground (VSSA), which must be at the same potential as VSS."
}
],
"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: Figure 6 (QFN32 drawing) pin labels are garbled in the text extraction, so the pin-to-name mapping w; In Table 5 the row listing VDD ('27 36 48 75 VDD') has a blank QFN32 column in the extraction; it wa; The exposed pad is printed as pin '33' with name 'EPAD (VSS/VSSA)' in Table 5 for the QFN32 package;"
],
"pages_sent": 75,
"cost_usd": 0.2659,
"at": "2026-10-18T03:42:02"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903459321765888",
"pages": 89,
"sha256": "6ea9ef1acb32858f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "at32f423kcu7-4.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "at32f423kcu7-4-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1daecf0d634b987046627299cb137f4c8163ae4909f5997df67b4967a405fc10",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "ARTERY(雅特力)",
"Package": "QFN-32-EP(4x4)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "6ea9ef1acb32858fb0a5f4af2f7180febad64fdceb7002e3051198ef9f86d372",
"rows": [
{
"name": "Power supply voltage (feature summary, power control)",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 2.4,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating temperature range (feature summary)",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 105,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "CPU maximum operating frequency (feature summary)",
"symbol": "",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "48 MHz HICK frequency accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "25 °C",
"source_page": 1,
"source": "datasheet"
},
{
"name": "48 MHz HICK frequency accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -2.5,
"typ": null,
"max": 2.5,
"conditions": "-40 °C to +105 °C",
"source_page": 1,
"source": "datasheet"
},
{
"name": "External supply voltage",
"symbol": "VDDx-VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Input voltage on FTa pin (input floating, pull-up or pull-down mode)",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 6,
"conditions": "FTa pin set to input floating, input pull-up or input pull-down",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Input voltage on TC pin",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Voltage difference between supply pins",
"symbol": "|ΔVDDx|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Voltage difference between ground pins",
"symbol": "|VSSx-VSS|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Total current through VDD supply line (inflow)",
"symbol": "IVDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Total current through VSS ground line (outflow)",
"symbol": "IVSS",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Output sink current on any GPIO and control pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Output current on any GPIO and control pin (source)",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": -25,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -60,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 35,
"source": "datasheet"
},
{
"name": "OTGFS transceiver startup time",
"symbol": "tSTARTUP",
"kind": "timing",
"unit": "μs",
"min": null,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 65,
"source": "datasheet"
},
{
"name": "OTGFS operating voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Differential input sensitivity",
"symbol": "VDI",
"kind": "electrical",
"unit": "V",
"min": 0.2,
"typ": null,
"max": null,
"conditions": "I(OTGFS_D+/D-)",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Differential common-mode range",
"symbol": "VCM",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": null,
"max": 2.5,
"conditions": "includes VDI range",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Single-ended receiver threshold",
"symbol": "VSE",
"kind": "electrical",
"unit": "V",
"min": 1.3,
"typ": null,
"max": 2,
"conditions": "",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Static output low level",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "RL = 1.24 kΩ to 3.6 V",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Static output high level",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.8,
"typ": null,
"max": 3.6,
"conditions": "RL = 15 kΩ to VSS",
"source_page": 65,
"source": "datasheet"
},
{
"name": "OTGFS_D+ internal pull-up resistor",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 0.97,
"typ": 1.24,
"max": 1.58,
"conditions": "VIN = VSS",
"source_page": 65,
"source": "datasheet"
},
{
"name": "OTGFS_D+/D- internal pull-down resistor",
"symbol": "RPD",
"kind": "electrical",
"unit": "kΩ",
"min": 15,
"typ": 19,
"max": 25,
"conditions": "VIN = VDD",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Rise time",
"symbol": "tr",
"kind": "timing",
"unit": "ns",
"min": 4,
"typ": null,
"max": 20,
"conditions": "CL ≤ 50 pF",
"source_page": 65,
"source": "datasheet"
},
{
"name": "Fall time",
"symbol": "tf",
"kind": "timing",
"unit": "ns",
"min": 4,
"typ": null,
"max": 20,
"conditions": "CL ≤ 50 pF",
"source_page": 65,
"source": "datasheet"
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