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Contents

README

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STM32L151RBT6TR

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

STM32L151RBT6TR from STMicroelectronics, in a LQFP-64(10x10). 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; note 3 states that for STM32L151xx devices this pin should be connected to VDD.
2 PC13-WKUP2 bidirectional 5 V tolerant (FT) general-purpose I/O PC13, also RTC_TAMP1, RTC_TS, RTC_OUT and WKUP2 wakeup function.
3 PC14-OSC32_IN bidirectional Standard 3.3 V (TC) I/O PC14, used as OSC32_IN only when the LSE oscillator is on (LSEON in RCC_CSR), otherwise usable as GPIO with LSE having priority.
4 PC15-OSC32_OUT bidirectional Standard 3.3 V (TC) I/O PC15, used as OSC32_OUT only when the LSE oscillator is on (LSEON in RCC_CSR), otherwise usable as GPIO with LSE having priority.
5 PH0-OSC_IN bidirectional Standard 3.3 V (TC) I/O PH0, used as OSC_IN only when the HSE oscillator is on (HSEON in RCC_CR), otherwise usable as GPIO with HSE having priority.
6 PH1-OSC_OUT bidirectional Standard 3.3 V (TC) I/O PH1, used as OSC_OUT only when the HSE oscillator is on (HSEON in RCC_CR), otherwise usable as GPIO with HSE having priority.
7 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
8 PC0 bidirectional 5 V tolerant (FT) I/O PC0 with analog inputs ADC_IN10 and COMP1_INP and alternate function LCD_SEG18 as printed.
9 PC1 bidirectional 5 V tolerant (FT) I/O PC1 with analog inputs ADC_IN11 and COMP1_INP and alternate function LCD_SEG19 as printed.
10 PC2 bidirectional 5 V tolerant (FT) I/O PC2 with analog inputs ADC_IN12 and COMP1_INP and alternate function LCD_SEG20 as printed.
11 PC3 bidirectional Standard 3.3 V (TC) I/O PC3 with analog inputs ADC_IN13 and COMP1_INP and alternate function LCD_SEG21 as printed.
12 VSSA power_in Analog ground pin; VSSA must be tied to ground.
13 VDDA power_in Analog supply pin; ADC characteristics specify VDDA from 1.8 V to 3.6 V.
14 PA0-WKUP1 bidirectional 5 V tolerant (FT) I/O PA0 with USART2_CTS and TIM2_CH1_ETR alternate functions, plus WKUP1, ADC_IN0 and COMP1_INP.
15 PA1 bidirectional 5 V tolerant (FT) I/O PA1 with USART2_RTS, TIM2_CH2 and LCD_SEG0 alternate functions, plus ADC_IN1 and COMP1_INP.
16 PA2 bidirectional 5 V tolerant (FT) I/O PA2 with USART2_TX, TIM2_CH3, TIM9_CH1 and LCD_SEG1 alternate functions, plus ADC_IN2 and COMP1_INP.
17 PA3 bidirectional Standard 3.3 V (TC) I/O PA3 with USART2_RX, TIM2_CH4, TIM9_CH2 and LCD_SEG2 alternate functions, plus ADC_IN3 and COMP1_INP.
18 VSS_4 power_in Digital ground pin.
19 VDD_4 power_in Digital supply pin; for this ordering option (no T option character) the VDD range is 1.8 V to 3.6 V with BOR enabled.
20 PA4 bidirectional Standard 3.3 V (TC) I/O PA4 with SPI1_NSS and USART2_CK alternate functions, plus ADC_IN4, DAC_OUT1 and COMP1_INP.
21 PA5 bidirectional Standard 3.3 V (TC) I/O PA5 with SPI1_SCK and TIM2_CH1_ETR alternate functions, plus ADC_IN5, DAC_OUT2 and COMP1_INP.
22 PA6 bidirectional 5 V tolerant (FT) I/O PA6 with SPI1_MISO, TIM3_CH1, LCD_SEG3 and TIM10_CH1 alternate functions, plus ADC_IN6 and COMP1_INP.
23 PA7 bidirectional 5 V tolerant (FT) I/O PA7 with SPI1_MOSI, TIM3_CH2, LCD_SEG4 and TIM11_CH1 alternate functions, plus ADC_IN7 and COMP1_INP.
24 PC4 bidirectional 5 V tolerant (FT) I/O PC4 with alternate function LCD_SEG22 as printed, plus ADC_IN14 and COMP1_INP.
25 PC5 bidirectional 5 V tolerant (FT) I/O PC5 with alternate function LCD_SEG23 as printed, plus ADC_IN15 and COMP1_INP.
26 PB0 bidirectional Standard 3.3 V (TC) I/O PB0 with TIM3_CH3 and LCD_SEG5 alternate functions, plus ADC_IN8, COMP1_INP and VREF_OUT.
27 PB1 bidirectional 5 V tolerant (FT) I/O PB1 with TIM3_CH4 and LCD_SEG6 alternate functions, plus ADC_IN9, COMP1_INP and VREF_OUT.
28 PB2/BOOT1 bidirectional 5 V tolerant (FT) I/O PB2 that is also the BOOT1 boot-mode pin.
29 PB10 bidirectional 5 V tolerant (FT) I/O PB10 with I2C2_SCL, USART3_TX, TIM2_CH3 and LCD_SEG10 alternate functions.
30 PB11 bidirectional 5 V tolerant (FT) I/O PB11 with I2C2_SDA, USART3_RX, TIM2_CH4 and LCD_SEG11 alternate functions.
31 VSS_1 power_in Digital ground pin.
32 VDD_1 power_in Digital supply pin; for this ordering option the VDD range is 1.8 V to 3.6 V with BOR enabled.
33 PB12 bidirectional 5 V tolerant (FT) I/O PB12 with SPI2_NSS, I2C2_SMBA, USART3_CK, LCD_SEG12 and TIM10_CH1 alternate functions, plus ADC_IN18 and COMP1_INP.
34 PB13 bidirectional 5 V tolerant (FT) I/O PB13 with SPI2_SCK, USART3_CTS, LCD_SEG13 and TIM9_CH1 alternate functions, plus ADC_IN19 and COMP1_INP.
35 PB14 bidirectional 5 V tolerant (FT) I/O PB14 with SPI2_MISO, USART3_RTS, LCD_SEG14 and TIM9_CH2 alternate functions, plus ADC_IN20 and COMP1_INP.
36 PB15 bidirectional 5 V tolerant (FT) I/O PB15 with SPI2_MOSI, LCD_SEG15 and TIM11_CH1 alternate functions, plus ADC_IN21, COMP1_INP and RTC_REFIN.
37 PC6 bidirectional 5 V tolerant (FT) I/O PC6 with TIM3_CH1 and LCD_SEG24 alternate functions.
38 PC7 bidirectional 5 V tolerant (FT) I/O PC7 with TIM3_CH2 and LCD_SEG25 alternate functions.
39 PC8 bidirectional 5 V tolerant (FT) I/O PC8 with TIM3_CH3 and LCD_SEG26 alternate functions.
40 PC9 bidirectional 5 V tolerant (FT) I/O PC9 with TIM3_CH4 and LCD_SEG27 alternate functions.
41 PA8 bidirectional 5 V tolerant (FT) I/O PA8 with USART1_CK, MCO and LCD_COM0 alternate functions.
42 PA9 bidirectional 5 V tolerant (FT) I/O PA9 with USART1_TX and LCD_COM1 alternate functions.
43 PA10 bidirectional 5 V tolerant (FT) I/O PA10 with USART1_RX and LCD_COM2 alternate functions.
44 PA11 bidirectional 5 V tolerant (FT) I/O PA11 with USART1_CTS and SPI1_MISO alternate functions, and USB_DM as additional function.
45 PA12 bidirectional 5 V tolerant (FT) I/O PA12 with USART1_RTS and SPI1_MOSI alternate functions, and USB_DP as additional function.
46 PA13 bidirectional 5 V tolerant (FT) I/O PA13 with JTMS-SWDIO debug function.
47 VSS_2 power_in Digital ground pin.
48 VDD_2 power_in Digital supply pin; for this ordering option the VDD range is 1.8 V to 3.6 V with BOR enabled.
49 PA14 bidirectional 5 V tolerant (FT) I/O PA14 with JTCK-SWCLK debug function.
50 PA15 bidirectional 5 V tolerant (FT) I/O PA15 with JTDI, TIM2_CH1_ETR, SPI1_NSS and LCD_SEG17 alternate functions.
51 PC10 bidirectional 5 V tolerant (FT) I/O PC10 with USART3_TX, LCD_SEG28, LCD_SEG40 and LCD_COM4 alternate functions as printed.
52 PC11 bidirectional 5 V tolerant (FT) I/O PC11 with USART3_RX, LCD_SEG29, LCD_SEG41 and LCD_COM5 alternate functions as printed.
53 PC12 bidirectional 5 V tolerant (FT) I/O PC12 with USART3_CK, LCD_SEG30, LCD_SEG42 and LCD_COM6 alternate functions as printed.
54 PD2 bidirectional 5 V tolerant (FT) I/O PD2 with TIM3_ETR, LCD_SEG31, LCD_SEG43 and LCD_COM7 alternate functions as printed.
55 PB3 bidirectional 5 V tolerant (FT) I/O PB3 with JTDO, TIM2_CH2, SPI1_SCK and LCD_SEG7 alternate functions, plus COMP2_INM.
56 PB4 bidirectional 5 V tolerant (FT) I/O PB4 with NJTRST, TIM3_CH1, SPI1_MISO and LCD_SEG8 alternate functions, plus COMP2_INP.
57 PB5 bidirectional 5 V tolerant (FT) I/O PB5 with I2C1_SMBA, TIM3_CH2, SPI1_MOSI and LCD_SEG9 alternate functions, plus COMP2_INP.
58 PB6 bidirectional 5 V tolerant (FT) I/O PB6 with I2C1_SCL, TIM4_CH1 and USART1_TX alternate functions.
59 PB7 bidirectional 5 V tolerant (FT) I/O PB7 with I2C1_SDA, TIM4_CH2 and USART1_RX alternate functions, and PVD_IN as additional function.
60 BOOT0 input Dedicated BOOT0 boot-mode selection pin (input only, dedicated structure).
61 PB8 bidirectional 5 V tolerant (FT) I/O PB8 with TIM4_CH3, I2C1_SCL, LCD_SEG16 and TIM10_CH1 alternate functions.
62 PB9 bidirectional 5 V tolerant (FT) I/O PB9 with TIM4_CH4, I2C1_SDA, LCD_COM3 and TIM11_CH1 alternate functions.
63 VSS_3 power_in Digital ground pin.
64 VDD_3 power_in Digital supply pin; for this ordering option the VDD range is 1.8 V to 3.6 V with BOR enabled.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: STM32L151RBT6TR
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: stm32l151rbt6tr-etched.step / stm32l151rbt6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l151rbt6tr.step / stm32l151rbt6tr.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