component
STM32L412KBU6
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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{
"slug": "stm32l412kbu6",
"version": "0.1.0",
"type": "component",
"description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-32(5x5). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"stm32l412kbu6",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"stm32l412kbu6.kicad_sym",
"stm32l412kbu6.kicad_mod",
"stm32l412kbu6.glb",
"stm32l412kbu6.step",
"stm32l412kbu6.lbr",
"docs/hero.png",
"docs/stm32l412kbu6-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html"
],
"component": {
"mpn": "STM32L412KBU6",
"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/8588906506029051904",
"parts": {
"symbol": "stm32l412kbu6.kicad_sym",
"footprint": "stm32l412kbu6.kicad_mod",
"model_3d": "stm32l412kbu6-etched.glb",
"model_3d_plain": "stm32l412kbu6.glb",
"model_3d_step": "stm32l412kbu6-etched.step",
"model_3d_step_plain": "stm32l412kbu6.step",
"lbr": "stm32l412kbu6.lbr"
},
"distributor_links": {
"lcsc": "C529439",
"digikey": "497-18230-ND",
"mouser": "511-STM32L412KBU6"
},
"distributor_check": {
"checked_at": "2026-10-01T18:08:15Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-18230-ND",
"status": "found"
},
"mouser": {
"pn": "511-STM32L412KBU6",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Main supply voltage (1.71 V to 3.6 V)."
},
{
"number": "2",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "Port C pin 14, 32 kHz oscillator input; alternate functions: EVENTOUT; additional functions: OSC32_IN."
},
{
"number": "3",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "Port C pin 15, 32 kHz oscillator output; alternate functions: EVENTOUT; additional functions: OSC32_OUT."
},
{
"number": "4",
"name": "NRST",
"type": "bidirectional",
"description": "Active low reset input with embedded weak pull-up resistor."
},
{
"number": "5",
"name": "VDDA/VREF+",
"type": "power_in",
"description": "Analog supply voltage (1.62 V to 3.6 V when ADC/COMP used) and positive reference for ADC."
},
{
"number": "6",
"name": "PA0",
"type": "bidirectional",
"description": "Port A pin 0; alternate functions: TIM2_CH1, USART2_CTS, COMP1_OUT, TIM2_ETR, EVENTOUT; additional functions: OPAMP1_VINP, COMP1_INM, ADC1_IN5, RTC_TAMP2/WKUP1."
},
{
"number": "7",
"name": "PA1",
"type": "bidirectional",
"description": "Port A pin 1; alternate functions: TIM2_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, TIM15_CH1N, EVENTOUT; additional functions: OPAMP1_VINM, COMP1_INP, ADC1_IN6."
},
{
"number": "8",
"name": "PA2",
"type": "bidirectional",
"description": "Port A pin 2; alternate functions: TIM2_CH3, USART2_TX, LPUART1_TX, QUADSPI_BK1_NCS, TIM15_CH1, EVENTOUT; additional functions: ADC12_IN7, WKUP4/LSCO."
},
{
"number": "9",
"name": "PA3",
"type": "bidirectional",
"description": "Port A pin 3 (3.6 V tolerant); alternate functions: TIM2_CH4, USART2_RX, LPUART1_RX, QUADSPI_CLK, TIM15_CH2, EVENTOUT; additional functions: OPAMP1_VOUT, ADC12_IN8."
},
{
"number": "10",
"name": "PA4",
"type": "bidirectional",
"description": "Port A pin 4 (3.6 V tolerant); alternate functions: SPI1_NSS, USART2_CK, LPTIM2_OUT, EVENTOUT; additional functions: COMP1_INM, ADC12_IN9."
},
{
"number": "11",
"name": "PA5",
"type": "bidirectional",
"description": "Port A pin 5 (3.6 V tolerant); alternate functions: TIM2_CH1, TIM2_ETR, SPI1_SCK, LPTIM2_ETR, EVENTOUT; additional functions: COMP1_INM, ADC12_IN10."
},
{
"number": "12",
"name": "PA6",
"type": "bidirectional",
"description": "Port A pin 6; alternate functions: TIM1_BKIN, SPI1_MISO, COMP1_OUT, USART3_CTS, LPUART1_CTS, QUADSPI_BK1_IO3, TIM16_CH1, EVENTOUT; additional functions: ADC12_IN11."
},
{
"number": "13",
"name": "PA7",
"type": "bidirectional",
"description": "Port A pin 7 (FM+ capable); alternate functions: TIM1_CH1N, I2C3_SCL, SPI1_MOSI, QUADSPI_BK1_IO2, EVENTOUT; additional functions: ADC12_IN12."
},
{
"number": "14",
"name": "PB0",
"type": "bidirectional",
"description": "Port B pin 0; alternate functions: TRACED0, TIM1_CH2N, SPI1_NSS, USART3_CK, QUADSPI_BK1_IO1, COMP1_OUT, EVENTOUT; additional functions: ADC12_IN15."
},
{
"number": "15",
"name": "PB1",
"type": "bidirectional",
"description": "Port B pin 1; alternate functions: TRACED1, TIM1_CH3N, USART3_RTS_DE, LPUART1_RTS_DE, QUADSPI_BK1_IO0, LPTIM2_IN1, EVENTOUT; additional functions: COMP1_INM, ADC12_IN16."
},
{
"number": "16",
"name": "VSS",
"type": "power_in",
"description": "Ground (0 V)."
},
{
"number": "17",
"name": "VDD",
"type": "power_in",
"description": "Main supply voltage (1.71 V to 3.6 V)."
},
{
"number": "18",
"name": "PA8",
"type": "bidirectional",
"description": "Port A pin 8; alternate functions: MCO, TIM1_CH1, USART1_CK, LPTIM2_OUT, EVENTOUT."
},
{
"number": "19",
"name": "PA9",
"type": "bidirectional",
"description": "Port A pin 9 (FM+ capable); alternate functions: TIM1_CH2, I2C1_SCL, USART1_TX, TIM15_BKIN, EVENTOUT."
},
{
"number": "20",
"name": "PA10",
"type": "bidirectional",
"description": "Port A pin 10 (FM+ capable); alternate functions: TIM1_CH3, I2C1_SDA, USART1_RX, USB_CRS_SYNC, EVENTOUT."
},
{
"number": "21",
"name": "PA11",
"type": "bidirectional",
"description": "Port A pin 11 (USB function); alternate functions: TIM1_CH4, TIM1_BKIN2, SPI1_MISO, COMP1_OUT, USART1_CTS, USB_DM, TIM1_BKIN2_COMP1, EVENTOUT."
},
{
"number": "22",
"name": "PA12",
"type": "bidirectional",
"description": "Port A pin 12 (USB function); alternate functions: TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, USB_DP, EVENTOUT."
},
{
"number": "23",
"name": "PA13",
"type": "bidirectional",
"description": "Port A pin 13, JTAG test mode select / SWD I/O; alternate functions: JTMS/SWDIO, IR_OUT, USB_NOE, EVENTOUT."
},
{
"number": "24",
"name": "PA14",
"type": "bidirectional",
"description": "Port A pin 14, JTAG test clock / SWD clock; alternate functions: JTCK/SWCLK, LPTIM1_OUT, I2C1_SMBA, EVENTOUT."
},
{
"number": "25",
"name": "PA15",
"type": "bidirectional",
"description": "Port A pin 15, JTAG test data in; alternate functions: JTDI, TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, USART3_RTS_DE, TSC_G3_IO1, EVENTOUT."
},
{
"number": "26",
"name": "PB3",
"type": "bidirectional",
"description": "Port B pin 3, JTAG test data out / trace serial wire output; alternate functions: JTDO/TRACESWO, TIM2_CH2, SPI1_SCK, USART1_RTS_DE, EVENTOUT."
},
{
"number": "27",
"name": "PB4",
"type": "bidirectional",
"description": "Port B pin 4, JTAG nRESET (FM+ capable); alternate functions: NJTRST, I2C3_SDA, SPI1_MISO, USART1_CTS, TSC_G2_IO1, EVENTOUT."
},
{
"number": "28",
"name": "PB5",
"type": "bidirectional",
"description": "Port B pin 5; alternate functions: TRACED2, LPTIM1_IN1, I2C1_SMBA, SPI1_MOSI, USART1_CK, TSC_G2_IO2, TIM16_BKIN, EVENTOUT."
},
{
"number": "29",
"name": "PB6",
"type": "bidirectional",
"description": "Port B pin 6 (FM+ capable); alternate functions: TRACED3, LPTIM1_ETR, I2C1_SCL, USART1_TX, TSC_G2_IO3, TIM16_CH1N, EVENTOUT."
},
{
"number": "30",
"name": "PB7",
"type": "bidirectional",
"description": "Port B pin 7 (FM+ capable, PVD input); alternate functions: TRACECK, LPTIM1_IN2, I2C1_SDA, USART1_RX, TSC_G2_IO4, EVENTOUT; additional functions: PVD_IN."
},
{
"number": "31",
"name": "PH3-BOOT0",
"type": "bidirectional",
"description": "Port H pin 3, boot mode selection; alternate functions: EVENTOUT."
},
{
"number": "32",
"name": "VSS",
"type": "power_in",
"description": "Ground (0 V)."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.2",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.2",
"primary_model": "claude-haiku-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [],
"pages_sent": 72,
"cost_usd": 0.6475,
"at": "2026-10-01T18:07:58"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906506029051904",
"pages": 193,
"sha256": "5104ae3be2936485",
"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"
}
}
}