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STM32L412KBT6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32L412KBT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)
STM32L412KBT6 from STMicroelectronics, in a LQFP-32(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Main digital supply pin, standard operating range 1.71 V to 3.6 V. |
| 2 | PC14-OSC32_IN | bidirectional | FT 5 V-tolerant I/O (PC14) with EVENTOUT alternate function; additional function OSC32_IN for the 32 kHz LSE crystal input. |
| 3 | PC15-OSC32_OUT | bidirectional | FT 5 V-tolerant I/O (PC15) with EVENTOUT alternate function; additional function OSC32_OUT for the 32 kHz LSE crystal output. |
| 4 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor (25 to 55 kΩ). |
| 5 | VDDA/VREF+ | power_in | Analog supply and positive ADC reference voltage (VREF+ connected to VDDA on this package); VDDA 1.62 V to 3.6 V when ADC or COMP is used. |
| 6 | PA0-CK_IN | bidirectional | FT_a I/O (PA0) with TIM2_CH1, USART2_CTS, COMP1_OUT, TIM2_ETR alternate functions; additional functions OPAMP1_VINP, COMP1_INM, ADC1_IN5, RTC_TAMP2/WKUP1 and CK_IN. |
| 7 | PA1 | bidirectional | FT_a I/O with TIM2_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, TIM15_CH1N alternate functions; additional functions OPAMP1_VINM, COMP1_INP, ADC1_IN6. |
| 8 | PA2 | bidirectional | FT_a I/O with TIM2_CH3, USART2_TX, LPUART1_TX, QUADSPI_BK1_NCS, TIM15_CH1 alternate functions; additional functions ADC12_IN7, WKUP4/LSCO. |
| 9 | PA3 | bidirectional | TT_a 3.6 V-tolerant I/O with TIM2_CH4, USART2_RX, LPUART1_RX, QUADSPI_CLK, TIM15_CH2 alternate functions; additional functions OPAMP1_VOUT, ADC12_IN8. |
| 10 | PA4 | bidirectional | TT_a 3.6 V-tolerant I/O with SPI1_NSS, USART2_CK, LPTIM2_OUT alternate functions; additional functions COMP1_INM, ADC12_IN9. |
| 11 | PA5 | bidirectional | TT_a 3.6 V-tolerant I/O with TIM2_CH1, TIM2_ETR, SPI1_SCK, LPTIM2_ETR alternate functions; additional functions COMP1_INM, ADC12_IN10. |
| 12 | PA6 | bidirectional | FT_a I/O with TIM1_BKIN, SPI1_MISO, COMP1_OUT, USART3_CTS, LPUART1_CTS, QUADSPI_BK1_IO3, TIM16_CH1 alternate functions; additional function ADC12_IN11. |
| 13 | PA7 | bidirectional | FT_fa Fm+ capable I/O with TIM1_CH1N, I2C3_SCL, SPI1_MOSI, QUADSPI_BK1_IO2 alternate functions; additional function ADC12_IN12. |
| 14 | PB0 | bidirectional | FT_a I/O with TRACED0, TIM1_CH2N, SPI1_NSS, USART3_CK, QUADSPI_BK1_IO1, COMP1_OUT alternate functions; additional function ADC12_IN15. |
| 15 | PB1 | bidirectional | FT_a I/O with TRACED1, TIM1_CH3N, USART3_RTS_DE, LPUART1_RTS_DE, QUADSPI_BK1_IO0, LPTIM2_IN1 alternate functions; additional functions COMP1_INM, ADC12_IN16. |
| 16 | VSS | power_in | Digital ground pin. |
| 17 | VDD | power_in | Main digital supply pin, standard operating range 1.71 V to 3.6 V. |
| 18 | PA8 | bidirectional | FT 5 V-tolerant I/O with MCO, TIM1_CH1, USART1_CK, LPTIM2_OUT alternate functions. |
| 19 | PA9 | bidirectional | FT_f Fm+ capable 5 V-tolerant I/O with TIM1_CH2, I2C1_SCL, USART1_TX, TIM15_BKIN alternate functions. |
| 20 | PA10 | bidirectional | FT_f Fm+ capable 5 V-tolerant I/O with TIM1_CH3, I2C1_SDA, USART1_RX, USB_CRS_SYNC alternate functions. |
| 21 | PA11 | bidirectional | FT_u I/O with USB function supplied by VDDUSB; alternate functions TIM1_CH4, TIM1_BKIN2, SPI1_MISO, COMP1_OUT, USART1_CTS, USB_DM, TIM1_BKIN2_COMP1. |
| 22 | PA12 | bidirectional | FT_u I/O with USB function supplied by VDDUSB; alternate functions TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, USB_DP. |
| 23 | PA13 (JTMS/SWDIO) | bidirectional | FT 5 V-tolerant I/O, JTMS/SWDIO debug pin after reset, with IR_OUT and USB_NOE alternate functions. |
| 24 | PA14 (JTCK/SWCLK) | bidirectional | FT 5 V-tolerant I/O, JTCK/SWCLK debug pin after reset, with LPTIM1_OUT and I2C1_SMBA alternate functions. |
| 25 | PA15 (JTDI) | bidirectional | FT 5 V-tolerant I/O, JTDI after reset, with TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, USART3_RTS_DE, TSC_G3_IO1 alternate functions. |
| 26 | PB3 (JTDO/TRACESWO) | bidirectional | FT_a I/O, JTDO/TRACESWO after reset, with TIM2_CH2, SPI1_SCK, USART1_RTS_DE alternate functions. |
| 27 | PB4 (NJTRST) | bidirectional | FT_fa Fm+ capable I/O, NJTRST after reset, with I2C3_SDA, SPI1_MISO, USART1_CTS, TSC_G2_IO1 alternate functions. |
| 28 | PB5 | bidirectional | FT 5 V-tolerant I/O with TRACED2, LPTIM1_IN1, I2C1_SMBA, SPI1_MOSI, USART1_CK, TSC_G2_IO2, TIM16_BKIN alternate functions. |
| 29 | PB6 | bidirectional | FT_fa Fm+ capable I/O with TRACED3, LPTIM1_ETR, I2C1_SCL, USART1_TX, TSC_G2_IO3, TIM16_CH1N alternate functions. |
| 30 | PB7 | bidirectional | FT_fa Fm+ capable I/O with TRACECK, LPTIM1_IN2, I2C1_SDA, USART1_RX, TSC_G2_IO4 alternate functions; additional function PVD_IN. |
| 31 | PH3-BOOT0 | bidirectional | FT 5 V-tolerant I/O, BOOT0 boot mode selection after reset, with EVENTOUT alternate function. |
| 32 | VSS | power_in | Digital ground pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-32(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 32 |
CAD (KiCad official)
- Symbol:
STM32L412KBT6 - Footprint:
Package_QFP:LQFP-32_7x7mm_P0.8mm - 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32l412kbt6-etched.step/stm32l412kbt6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32l412kbt6.step/stm32l412kbt6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (193 pp, sha256
5104ae3be2936485, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).