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STM32L071KZT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

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STM32L071KZT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)

STM32L071KZT6 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 power supply; the datasheet gives a 1.65 V to 3.6 V supply range for the device.
2 PC14-OSC32_IN bidirectional Five-volt tolerant (FT) general-purpose I/O, also serving as OSC32_IN for the 32.768 kHz LSE crystal.
3 PC15-OSC32_OUT bidirectional Standard 3.3 V I/O (TC), also serving as OSC32_OUT for the 32.768 kHz LSE crystal.
4 NRST bidirectional Bidirectional reset pin with an embedded weak pull-up resistor.
5 VDDA power_in Analog power supply for the ADC, comparators and internal reference; the revision history gives a VDDA minimum of 1.65 V.
6 PA0 bidirectional I/O with TTa structure; alternate functions include TIM2_CH1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT, and additional functions include ADC_IN0, COMP1_INM and RTC_TAMP2/WKUP1.
7 PA1 bidirectional Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX, and additional functions include ADC_IN1 and COMP1_INP.
8 PA2 bidirectional Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX and COMP2_OUT, and additional functions include ADC_IN2 and COMP2_INM.
9 PA3 bidirectional Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH2, TIM2_CH4, USART2_RX and LPUART1_RX, and additional functions include ADC_IN3 and COMP2_INP.
10 PA4 bidirectional Standard 3.3 V I/O (TC); alternate functions include SPI1_NSS, USART2_CK and TIM22_ETR, and additional functions include ADC_IN4, COMP1_INM and COMP2_INM.
11 PA5 bidirectional Standard 3.3 V I/O (TC); alternate functions include SPI1_SCK, TIM2_ETR and TIM2_CH1, and additional functions include ADC_IN5, COMP1_INM and COMP2_INM.
12 PA6 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, TIM3_CH1, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6.
13 PA7 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, TIM3_CH2, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7.
14 PB0 bidirectional Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT and TIM3_CH3, and additional functions include ADC_IN8 and VREF_OUT.
15 PB1 bidirectional Five-volt tolerant (FT) I/O; alternate functions include TIM3_CH4 and LPUART1_RTS/LPUART1_DE, and additional functions include ADC_IN9 and VREF_OUT.
16 VSS power_in Ground reference pin; all voltages in the datasheet are referenced to VSS.
17 VDD power_in Main digital power supply; the datasheet gives a 1.65 V to 3.6 V supply range for the device.
18 PA8 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, EVENTOUT, USART1_CK and I2C3_SCL.
19 PA9 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, USART1_TX, I2C1_SCL and I2C3_SMBA.
20 PA10 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX and I2C1_SDA.
21 PA11 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, EVENTOUT, USART1_CTS and COMP1_OUT.
22 PA12 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE and COMP2_OUT.
23 PA13 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SWDIO (serial wire debug data) and LPUART1_RX.
24 PA14 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SWCLK (serial wire debug clock), USART2_TX and LPUART1_TX.
25 PA15 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1 and USART4_RTS/USART4_DE.
26 PB3 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_SCK, TIM2_CH2, EVENTOUT, USART1_RTS/USART1_DE and USART5_TX, and additional function COMP2_INM.
27 PB4 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include SPI1_MISO, TIM3_CH1, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA, and additional function COMP2_INP.
28 PB5 bidirectional Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE, and additional function COMP2_INP.
29 PB6 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_TX, I2C1_SCL and LPTIM1_ETR, and additional function COMP2_INP.
30 PB7 bidirectional Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX, I2C1_SDA, LPTIM1_IN2 and USART4_CTS, and additional functions COMP2_INP and VREF_PVD_IN.
31 BOOT0 input Dedicated BOOT0 pin used for boot mode selection.
32 VSS power_in Ground reference pin; all voltages in the datasheet are referenced to VSS.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-32(7x7)
Category Embedded Processors & Controllers
Pins 32

CAD (KiCad official)

  • Symbol: STM32L071KZT6
  • Footprint: Package_QFP:LQFP-32_7x7mm_P0.8mm
  • 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm32l071kzt6-etched.step / stm32l071kzt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l071kzt6.step / stm32l071kzt6.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (148 pp, sha256 e1c4c9ce19ae345c, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF