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Contents

README

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STM32L152C6U6A

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · UFQFPN-48(7x7)

STM32L152C6U6A from STMicroelectronics, in a UFQFPN-48(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 VLCD power_in LCD power supply pin, applicable to STM32L152xx devices only; on STM32L151xx devices this pin should be connected to VDD.
2 PC13-WKUP2 bidirectional Standard 5 V tolerant (FT) general-purpose I/O, also RTC_TAMP1/RTC_TS/RTC_OUT and WKUP2 wakeup input.
3 PC14-OSC32_IN bidirectional Standard 3.3 V (TC) general-purpose I/O, used as OSC32_IN only when the LSE oscillator is on (LSEON); the LSE has priority over the GPIO function.
4 PC15-OSC32_OUT bidirectional Standard 3.3 V (TC) general-purpose I/O, used as OSC32_OUT only when the LSE oscillator is on (LSEON); the LSE has priority over the GPIO function.
5 PH0-OSC_IN bidirectional Standard 3.3 V (TC) general-purpose I/O, used as OSC_IN only when the HSE oscillator is on (HSEON); the HSE has priority over the GPIO function.
6 PH1-OSC_OUT bidirectional Standard 3.3 V (TC) general-purpose I/O, used as OSC_OUT only when the HSE oscillator is on (HSEON); the HSE has priority over the GPIO function.
7 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
8 VSSA power_in Analog ground pin; VSSA must be tied to ground.
9 VDDA power_in Analog supply pin; VDDA range is 1.8 V to 3.6 V per the ADC characteristics.
10 PA0-WKUP1 bidirectional 5 V tolerant (FT) general-purpose I/O, also WKUP1 wakeup, ADC_IN0, COMP1_INP, USART2_CTS and TIM2_CH1_ETR.
11 PA1 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN1, COMP1_INP, USART2_RTS, TIM2_CH2 and LCD_SEG0.
12 PA2 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN2, COMP1_INP, USART2_TX, TIM2_CH3, TIM9_CH1 and LCD_SEG1.
13 PA3 bidirectional Standard 3.3 V (TC) general-purpose I/O, also ADC_IN3, COMP1_INP, USART2_RX, TIM2_CH4, TIM9_CH2 and LCD_SEG2.
14 PA4 bidirectional Standard 3.3 V (TC) general-purpose I/O, also ADC_IN4, DAC_OUT1, COMP1_INP, SPI1_NSS and USART2_CK.
15 PA5 bidirectional Standard 3.3 V (TC) general-purpose I/O, also ADC_IN5, DAC_OUT2, COMP1_INP, SPI1_SCK and TIM2_CH1_ETR.
16 PA6 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN6, COMP1_INP, SPI1_MISO, TIM3_CH1, LCD_SEG3 and TIM10_CH1.
17 PA7 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN7, COMP1_INP, SPI1_MOSI, TIM3_CH2, LCD_SEG4 and TIM11_CH1.
18 PB0 bidirectional Standard 3.3 V (TC) general-purpose I/O, also ADC_IN8, COMP1_INP, VREF_OUT, TIM3_CH3 and LCD_SEG5.
19 PB1 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN9, COMP1_INP, VREF_OUT, TIM3_CH4 and LCD_SEG6.
20 PB2/BOOT1 bidirectional 5 V tolerant (FT) general-purpose I/O, also used as BOOT1 boot mode selection pin.
21 PB10 bidirectional 5 V tolerant (FT) general-purpose I/O, also I2C2_SCL, USART3_TX, TIM2_CH3 and LCD_SEG10.
22 PB11 bidirectional 5 V tolerant (FT) general-purpose I/O, also I2C2_SDA, USART3_RX, TIM2_CH4 and LCD_SEG11.
23 VSS_1 power_in Digital ground pin.
24 VDD_1 power_in Digital supply pin.
25 PB12 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN18, COMP1_INP, SPI2_NSS, I2C2_SMBA, USART3_CK, LCD_SEG12 and TIM10_CH1.
26 PB13 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN19, COMP1_INP, SPI2_SCK, USART3_CTS, LCD_SEG13 and TIM9_CH1.
27 PB14 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN20, COMP1_INP, SPI2_MISO, USART3_RTS, LCD_SEG14 and TIM9_CH2.
28 PB15 bidirectional 5 V tolerant (FT) general-purpose I/O, also ADC_IN21, COMP1_INP, RTC_REFIN, SPI2_MOSI, LCD_SEG15 and TIM11_CH1.
29 PA8 bidirectional 5 V tolerant (FT) general-purpose I/O, also MCO, USART1_CK and LCD_COM0.
30 PA9 bidirectional 5 V tolerant (FT) general-purpose I/O, also USART1_TX and LCD_COM1.
31 PA10 bidirectional 5 V tolerant (FT) general-purpose I/O, also USART1_RX and LCD_COM2.
32 PA11 bidirectional 5 V tolerant (FT) general-purpose I/O, also USART1_CTS, SPI1_MISO and USB_DM.
33 PA12 bidirectional 5 V tolerant (FT) general-purpose I/O, also USART1_RTS, SPI1_MOSI and USB_DP.
34 PA13 bidirectional 5 V tolerant (FT) pin, main function JTMS-SWDIO after reset (serial wire debug data I/O).
35 VSS_2 power_in Digital ground pin.
36 VDD_2 power_in Digital supply pin.
37 PA14 bidirectional 5 V tolerant (FT) pin, main function JTCK-SWCLK after reset (serial wire debug clock).
38 PA15 bidirectional 5 V tolerant (FT) general-purpose I/O, also JTDI, TIM2_CH1_ETR, SPI1_NSS and LCD_SEG17.
39 PB3 bidirectional 5 V tolerant (FT) general-purpose I/O, main function JTDO after reset, also TIM2_CH2, SPI1_SCK, LCD_SEG7 and COMP2_INM.
40 PB4 bidirectional 5 V tolerant (FT) general-purpose I/O, main function NJTRST after reset, also TIM3_CH1, SPI1_MISO, LCD_SEG8 and COMP2_INP.
41 PB5 bidirectional 5 V tolerant (FT) general-purpose I/O, also I2C1_SMBA, TIM3_CH2, SPI1_MOSI, LCD_SEG9 and COMP2_INP.
42 PB6 bidirectional 5 V tolerant (FT) general-purpose I/O, also I2C1_SCL, TIM4_CH1 and USART1_TX.
43 PB7 bidirectional 5 V tolerant (FT) general-purpose I/O, also I2C1_SDA, TIM4_CH2, USART1_RX and PVD_IN.
44 BOOT0 input Dedicated BOOT0 input pin (standard 3.3 V input, type B) used for boot mode selection.
45 PB8 bidirectional 5 V tolerant (FT) general-purpose I/O, also TIM4_CH3, I2C1_SCL, LCD_SEG16 and TIM10_CH1.
46 PB9 bidirectional 5 V tolerant (FT) general-purpose I/O, also TIM4_CH4, I2C1_SDA, LCD_COM3 and TIM11_CH1.
47 VSS_3 power_in Digital ground pin.
48 VDD_3 power_in Digital supply pin.
49 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package UFQFPN-48(7x7)
Category Embedded Processors & Controllers
Pins 49

CAD (KiCad official)

  • Symbol: STM32L152C6U6A
  • Footprint: Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm
  • 3D model: UFQFPN-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm32l152c6u6a-etched.step / stm32l152c6u6a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l152c6u6a.step / stm32l152c6u6a.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (133 pp, sha256 5223296de36fe904, 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