component
STM32G4A1KEU6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-32(5x5). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "stm32g4a1keu6",
"title": "STM32G4A1KEU6",
"brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-32(5x5). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"embedded processors & controllers",
"stm32g4a1keu6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "STM32G4A1KEU6",
"manufacturer": "STMicroelectronics",
"package": "UFQFPN-32(5x5)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838844758687744",
"parts": {
"symbol": "stm32g4a1keu6.kicad_sym",
"footprint": "stm32g4a1keu6.kicad_mod",
"model_3d": "stm32g4a1keu6-hero.glb",
"model_3d_plain": "stm32g4a1keu6.glb",
"model_3d_step": "stm32g4a1keu6-etched.step",
"model_3d_step_plain": "stm32g4a1keu6.step",
"lbr": "stm32g4a1keu6.lbr"
},
"distributor_links": {
"lcsc": "C3225626",
"digikey": "497-STM32G4A1KEU6-ND",
"mouser": "511-STM32G4A1KEU6"
},
"distributor_check": {
"checked_at": "2026-10-07T22:58:32Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-STM32G4A1KEU6-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "511-STM32G4A1KEU6",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Standard operating voltage supply pin, 1.71 V to 3.6 V per the general operating conditions."
},
{
"number": "2",
"name": "PF0-OSC_IN",
"type": "bidirectional",
"description": "5 V tolerant (FT_fa) I/O that is Fm+ capable and has an analog switch supplied by VDDA; additional functions OSC_IN and ADC1_IN10, alternate functions I2C2_SDA, SPI2_NSS/I2S2_WS, TIM1_CH3N, EVENTOUT."
},
{
"number": "3",
"name": "PF1-OSC_OUT",
"type": "bidirectional",
"description": "5 V tolerant (FT_a) I/O with analog switch supplied by VDDA; additional functions OSC_OUT, ADC2_IN10 and COMP3_INM, alternate functions SPI2_SCK/I2S2_CK and EVENTOUT."
},
{
"number": "4",
"name": "PG10-NRST",
"type": "bidirectional",
"description": "Bidirectional reset pin with embedded weak pull-up resistor (5 V tolerant FT I/O), alternate function MCO and EVENTOUT."
},
{
"number": "5",
"name": "PA0",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM2_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN, TIM8_ETR, TIM2_ETR; additional ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2, WKUP1."
},
{
"number": "6",
"name": "PA1",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions RTC_REFIN, TIM2_CH2, USART2_RTS_DE, TIM15_CH1N; additional ADC12_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP, OPAMP6_VINM."
},
{
"number": "7",
"name": "PA2",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM2_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, QUADSPI1_BK1_NCS, LPUART1_TX, UCPD1_FRSTX; additional ADC1_IN3, COMP2_INM, OPAMP1_VOUT, WKUP4/LSCO."
},
{
"number": "8",
"name": "PA3",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM2_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX, SAI1_MCLK_A; additional ADC1_IN4, COMP2_INP, OPAMP1_VINM/OPAMP1_VINP."
},
{
"number": "9",
"name": "PA4",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, SAI1_FS_B; additional ADC2_IN17, DAC1_OUT1, COMP1_INM."
},
{
"number": "10",
"name": "PA5",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, UCPD1_FRSTX; additional ADC2_IN13, DAC1_OUT2, COMP2_INM, OPAMP2_VINM."
},
{
"number": "11",
"name": "PA6",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3, LPUART1_CTS; additional ADC2_IN3, OPAMP2_VOUT."
},
{
"number": "12",
"name": "PA7",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2, UCPD1_FRSTX; additional ADC2_IN4, COMP2_INP, OPAMP1_VINP, OPAMP2_VINP."
},
{
"number": "13",
"name": "PB0",
"type": "bidirectional",
"description": "3.6 V tolerant (TT_a) I/O with analog switch supplied by VDDA; alternate functions TIM3_CH3, TIM8_CH2N, TIM1_CH2N, QUADSPI1_BK1_IO1, UCPD1_FRSTX; additional ADC1_IN15/ADC3_IN12, COMP4_INP, OPAMP2_VINP, OPAMP3_VINP."
},
{
"number": "14",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground pin, which must be connected to the external ground within the permitted VSS variation of 50 mV."
},
{
"number": "15",
"name": "VDDA/VREF+",
"type": "power_in",
"description": "Analog supply pin, which is internally connected to VREF+ on this package; VDDA is 1.62 V to 3.6 V when ADC or COMP is used and 2.0 V to 3.6 V when OPAMP is used."
},
{
"number": "16",
"name": "VSS",
"type": "power_in",
"description": "Ground pin, which must always be connected to the external power supply ground within the permitted range."
},
{
"number": "17",
"name": "VDD",
"type": "power_in",
"description": "Standard operating voltage supply pin, 1.71 V to 3.6 V per the general operating conditions."
},
{
"number": "18",
"name": "PA8",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) I/O that is Fm+ capable; alternate functions MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, TIM4_ETR, SAI1_CK2, SAI1_SCK_A, EVENTOUT."
},
{
"number": "19",
"name": "PA9",
"type": "bidirectional",
"description": "5 V tolerant (FT_fd) Fm+ capable I/O with UCPD dead-battery function; a high level on PA9 activates the UCPD1_CC1 pull-down (5.1 kΩ) on PB6, and additional function is UCPD1_DBCC1."
},
{
"number": "20",
"name": "PA10",
"type": "bidirectional",
"description": "5 V tolerant (FT_da) Fm+ capable I/O with UCPD dead-battery function; a high level on PA10 activates the UCPD1_CC2 pull-down (5.1 kΩ) on PB4, and additional function is UCPD1_DBCC2."
},
{
"number": "21",
"name": "PA11",
"type": "bidirectional",
"description": "5 V tolerant (FT_u) I/O with USB function; additional function USB_DM, alternate functions include SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4, TIM1_BKIN2."
},
{
"number": "22",
"name": "PA12",
"type": "bidirectional",
"description": "5 V tolerant (FT_u) I/O with USB function; additional function USB_DP, alternate functions include TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2, TIM1_ETR."
},
{
"number": "23",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O; after reset it is the SWDIO-JTMS debug function with internal pull-up activated, alternate functions include I2C1_SCL, IR_OUT, USART3_CTS and SAI1_SD_B."
},
{
"number": "24",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O; after reset it is the SWCLK-JTCK debug function with internal pull-down activated, alternate functions include LPTIM1_OUT, I2C1_SDA, TIM8_CH2, USART2_TX and SAI1_FS_B."
},
{
"number": "25",
"name": "PA15",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O; after reset it is the JTDI debug function with internal pull-up activated, alternate functions include TIM2_CH1, TIM8_CH1, I2C1_SCL, SPI1_NSS, USART2_RX and TIM1_BKIN."
},
{
"number": "26",
"name": "PB3",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O; after reset it is the JTDO/TRACESWO debug function, alternate functions include TIM2_CH2, TIM4_ETR, USB_CRS_SYNC, SPI1_SCK, USART2_TX and SAI1_SCK_B."
},
{
"number": "27",
"name": "PB4",
"type": "bidirectional",
"description": "5 V tolerant (FT_c) I/O with USB Type-C PD function; after reset it is the JTRST debug function with internal pull-up activated, and the UCPD1_CC2 pull-down (5.1 kΩ) is controlled by PA10."
},
{
"number": "28",
"name": "PB5",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O; alternate functions include TIM16_BKIN, TIM3_CH2, I2C1_SMBA, SPI1_MOSI, USART2_CK, I2C3_SDA, FDCAN2_RX, TIM17_CH1, LPTIM1_IN1 and SAI1_SD_B."
},
{
"number": "29",
"name": "PB6",
"type": "bidirectional",
"description": "5 V tolerant (FT_c) I/O with USB Type-C PD function; the UCPD1_CC1 pull-down (5.1 kΩ) is activated by a high level on PA9, alternate functions include TIM16_CH1N, TIM4_CH1, TIM8_CH1, USART1_TX, FDCAN2_TX and LPTIM1_ETR."
},
{
"number": "30",
"name": "PB7",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O with additional function PVD_IN; alternate functions include TIM17_CH1N, TIM4_CH2, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT and LPTIM1_IN2."
},
{
"number": "31",
"name": "PB8-BOOT0",
"type": "bidirectional",
"description": "5 V tolerant (FT_f) Fm+ capable I/O that also serves as BOOT0 pin; it is recommended to set PB8 to a mode other than analog after startup to limit consumption if the pin is left unconnected."
},
{
"number": "32",
"name": "VSS",
"type": "power_in",
"description": "Ground pin, which must always be connected to the external power supply ground within the permitted range."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Package selection: the MPN STM32G4A1KEU6 decodes as K = 32 pins and U = UFQFPN, so the UFQFPN32 (5x5; Pin 15 is printed as VDDA/VREF+ in Table 12 and is a single bonded pin on this package; the datashee; Pin types: the datasheet uses 'I/O' for all signal pins on this package, which was mapped to KiCad '",
"exposed pad 33 added from the footprint"
],
"pages_sent": 80,
"cost_usd": 0.3417,
"at": "2026-10-07T22:58:07"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838844758687744",
"pages": 200,
"sha256": "cde1526cdcf6f83b",
"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": "stm32g4a1keu6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "90af021df1253eae35bee4f4a4f9ba63bcf4a308f6e9f12d58f6e00181c23140",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm32g4a1keu6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "25194d0e4ffdf78863f9dd4a3da08f4bcf7a2121f2f9d62313549d30998b88b1",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "UFQFPN-32(5x5)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"stm32g4a1keu6"
],
"discovery_pitch": "STM32G4A1KEU6 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"stm32g4a1keu6.kicad_sym",
"stm32g4a1keu6.kicad_mod",
"stm32g4a1keu6.glb",
"stm32g4a1keu6.step",
"stm32g4a1keu6.lbr",
"docs/hero.png",
"docs/stm32g4a1keu6-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
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"visibility": {
"public": true
}
}