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Contents

README

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STM32L151C8T6

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

STM32L151C8T6 from STMicroelectronics, in a LQFP-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_out LCD voltage output for internal step-up converter (STM32L152xx only), connect to VDD for STM32L151xx
2 PC13-WKUP2 bidirectional GPIO port C pin 13 with wakeup capability, functions as RTC_TAMP1/RTC_TS/RTC_OUT, 5V tolerant
3 PC14-OSC32_IN passive 32.768 kHz oscillator input pin for low-speed external crystal
4 PC15-OSC32_OUT passive 32.768 kHz oscillator output pin for low-speed external crystal
5 PH0-OSC_IN passive High-speed external oscillator input pin for 1-24 MHz crystal oscillator
6 PH1-OSC_OUT passive High-speed external oscillator output pin for 1-24 MHz crystal oscillator
7 NRST input Reset pin with internal pull-up resistor and Schmitt trigger input, active low
8 VSSA power_in Analog ground connection for ADC/DAC/comparator/RTC circuits
9 VDDA power_in Analog power supply 1.8-3.6 V for ADC, DAC, comparators, and internal reference voltage
10 PA0-WKUP1 bidirectional GPIO port A pin 0 with wakeup capability, ADC_IN0, TIM2_CH1_ETR, COMP1_INP, 5V tolerant
11 PA1 bidirectional GPIO port A pin 1, functions as USART2_RTS/ADC_IN1/TIM2_CH2/LCD_SEG0/COMP1_INP, 5V tolerant
12 PA2 bidirectional GPIO port A pin 2, functions as USART2_TX/ADC_IN2/TIM2_CH3/TIM9_CH1/LCD_SEG1/COMP1_INP, 5V tolerant
13 PA3 bidirectional GPIO port A pin 3, functions as USART2_RX/ADC_IN3/TIM2_CH4/TIM9_CH2/LCD_SEG2/COMP1_INP
14 PA4 bidirectional GPIO port A pin 4, functions as SPI1_NSS/USART2_CK/ADC_IN4/DAC_OUT1/COMP1_INP
15 PA5 bidirectional GPIO port A pin 5, functions as SPI1_SCK/ADC_IN5/DAC_OUT2/TIM2_CH1_ETR/COMP1_INP
16 PA6 bidirectional GPIO port A pin 6, functions as SPI1_MISO/ADC_IN6/TIM3_CH1/LCD_SEG3/TIM10_CH1/COMP1_INP, 5V tolerant
17 PA7 bidirectional GPIO port A pin 7, functions as SPI1_MOSI/ADC_IN7/TIM3_CH2/LCD_SEG4/TIM11_CH1/COMP1_INP, 5V tolerant
18 PB0 bidirectional GPIO port B pin 0, functions as ADC_IN8/TIM3_CH3/LCD_SEG5/COMP1_INP/VREF_OUT
19 PB1 bidirectional GPIO port B pin 1, functions as ADC_IN9/TIM3_CH4/LCD_SEG6/COMP1_INP/VREF_OUT, 5V tolerant
20 PB2 bidirectional GPIO port B pin 2 with boot pin capability (BOOT1), selects boot source when set high, 5V tolerant
21 PB10 bidirectional GPIO port B pin 10, functions as I2C2_SCL/USART3_TX/TIM2_CH3/LCD_SEG10, 5V tolerant
22 PB11 bidirectional GPIO port B pin 11, functions as I2C2_SDA/USART3_RX/TIM2_CH4/LCD_SEG11, 5V tolerant
23 VSS_1 power_in Ground connection for main digital logic circuits
24 VDD_1 power_in Main power supply 1.65-3.6 V for digital logic and I/Os
25 PB12 bidirectional GPIO port B pin 12, functions as SPI2_NSS/I2C2_SMBA/USART3_CK/LCD_SEG12/ADC_IN18/COMP1_INP/TIM10_CH1, 5V tolerant
26 PB13 bidirectional GPIO port B pin 13, functions as SPI2_SCK/USART3_CTS/LCD_SEG13/ADC_IN19/COMP1_INP/TIM9_CH1, 5V tolerant
27 PB14 bidirectional GPIO port B pin 14, functions as SPI2_MISO/USART3_RTS/LCD_SEG14/ADC_IN20/COMP1_INP/TIM9_CH2, 5V tolerant
28 PB15 bidirectional GPIO port B pin 15, functions as SPI2_MOSI/LCD_SEG15/ADC_IN21/COMP1_INP/TIM11_CH1/RTC_REFIN, 5V tolerant
29 PA8 bidirectional GPIO port A pin 8, functions as USART1_CK/MCO/LCD_COM0, 5V tolerant
30 PA9 bidirectional GPIO port A pin 9, functions as USART1_TX/LCD_COM1, 5V tolerant
31 PA10 bidirectional GPIO port A pin 10, functions as USART1_RX/LCD_COM2, 5V tolerant
32 PA11 bidirectional GPIO port A pin 11, functions as USART1_CTS/USB_DM/SPI1_MISO, 5V tolerant
33 PA12 bidirectional GPIO port A pin 12, functions as USART1_RTS/USB_DP/SPI1_MOSI, 5V tolerant
34 PA13 bidirectional GPIO port A pin 13, JTMS/SWDAT for JTAG test mode select and serial wire debug data, 5V tolerant
35 VSS_2 power_in Ground connection for main digital logic circuits
36 VDD_2 power_in Main power supply 1.65-3.6 V for digital logic and I/Os
37 PA14 bidirectional GPIO port A pin 14, JTCK/SWCLK for JTAG test clock and serial wire debug clock, 5V tolerant
38 PA15 bidirectional GPIO port A pin 15, JTDI/TIM2_CH1_ETR/SPI1_NSS/LCD_SEG17 for JTAG data in, 5V tolerant
39 PB3 bidirectional GPIO port B pin 3, JTDO/TIM2_CH2/SPI1_SCK/COMP2_INM/LCD_SEG7 for JTAG data out, 5V tolerant
40 PB4 bidirectional GPIO port B pin 4, NJTRST/TIM3_CH1/SPI1_MISO/COMP2_INP/LCD_SEG8 for JTAG negate test reset, 5V tolerant
41 PB5 bidirectional GPIO port B pin 5, functions as I2C1_SMBA/TIM3_CH2/SPI1_MOSI/COMP2_INP/LCD_SEG9, 5V tolerant
42 PB6 bidirectional GPIO port B pin 6, functions as I2C1_SCL/TIM4_CH1/USART1_TX, 5V tolerant
43 PB7 bidirectional GPIO port B pin 7, functions as I2C1_SDA/TIM4_CH2/USART1_RX/PVD_IN, 5V tolerant
44 BOOT0 input Boot mode selection input pin, selects between Flash memory, system memory bootloader, or RAM boot
45 PB8 bidirectional GPIO port B pin 8, functions as TIM4_CH3/I2C1_SCL/LCD_SEG16/TIM10_CH1, 5V tolerant
46 PB9 bidirectional GPIO port B pin 9, functions as TIM4_CH4/I2C1_SDA/LCD_COM3/TIM11_CH1, 5V tolerant
47 VSS_3 power_in Ground connection for main digital logic circuits
48 VDD_3 power_in Main power supply 1.65-3.6 V for digital logic and I/Os

Key specifications

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

CAD (KiCad official)

  • Symbol: STM32L151C8T6
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm32l151c8t6-etched.step / stm32l151c8t6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l151c8t6.step / stm32l151c8t6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (117 pp, sha256 f6403fa4ebb08ec3, retrieved 2026-09-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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