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Contents

README

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STM32L151RDT6

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

STM32L151RDT6 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 supply/booster pin; applicable to STM32L152xD devices only, on STM32L151xD devices (incl. STM32L151RDT6, no LCD controller) this pin must be connected to VDD.
2 PC13-WKUP2 bidirectional General-purpose I/O PC13, alternate function WKUP2/RTC_TAMP1/RTC_TS/RTC_OUT, 5V-tolerant (FT).
3 PC14-OSC32_IN bidirectional General-purpose I/O PC14 or 32.768 kHz LSE oscillator input OSC32_IN when LSEON is set (standard 3.3V I/O, TC); LSE has priority over GPIO function.
4 PC15-OSC32_OUT bidirectional General-purpose I/O PC15 or 32.768 kHz LSE oscillator output OSC32_OUT when LSEON is set (standard 3.3V I/O, TC).
5 PH0-OSC_IN bidirectional General-purpose I/O PH0 or HSE crystal/external clock input OSC_IN when HSEON is set (standard 3.3V I/O, TC); HSE has priority over GPIO function.
6 PH1-OSC_OUT bidirectional General-purpose I/O PH1 or HSE crystal output OSC_OUT when HSEON is set (standard 3.3V I/O, TC).
7 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor; asserting low resets the device.
8 PC0 bidirectional General-purpose I/O PC0, additional functions LCD_SEG18, ADC_IN10/COMP1_INP, 5V-tolerant (FT).
9 PC1 bidirectional General-purpose I/O PC1, additional functions LCD_SEG19, ADC_IN11/COMP1_INP/OPAMP3_VINP, 5V-tolerant (FT).
10 PC2 bidirectional General-purpose I/O PC2, additional functions LCD_SEG20, ADC_IN12/COMP1_INP/OPAMP3_VINM, 5V-tolerant (FT).
11 PC3 bidirectional General-purpose I/O PC3, additional functions LCD_SEG21, ADC_IN13/COMP1_INP/OPAMP3_VOUT, standard 3.3V I/O (TC).
12 VSSA power_in Analog ground supply pin; VREF- is internally connected to VSSA on this package.
13 VDDA power_in Analog power supply pin, 1.8 V to 3.6 V; VREF+ is internally connected to VDDA on this package.
14 PA0-WKUP1 bidirectional General-purpose I/O PA0, alternate functions TIM2_CH1_ETR/TIM5_CH1/USART2_CTS, additional functions WKUP1/RTC_TAMP2/ADC_IN0/COMP1_INP, 5V-tolerant (FT).
15 PA1 bidirectional General-purpose I/O PA1, alternate functions TIM2_CH2/TIM5_CH2/USART2_RTS/LCD_SEG0, additional functions ADC_IN1/COMP1_INP/OPAMP1_VINP, 5V-tolerant (FT).
16 PA2 bidirectional General-purpose I/O PA2, alternate functions TIM2_CH3/TIM5_CH3/TIM9_CH1/USART2_TX/LCD_SEG1, additional functions ADC_IN2/COMP1_INP/OPAMP1_VINM, 5V-tolerant (FT).
17 PA3 bidirectional General-purpose I/O PA3, alternate functions TIM2_CH4/TIM5_CH4/TIM9_CH2/USART2_RX/LCD_SEG2, additional functions ADC_IN3/COMP1_INP/OPAMP1_VOUT, standard 3.3V I/O (TC).
18 VSS_4 power_in Digital ground supply pin (VSS_4).
19 VDD_4 power_in Digital power supply pin (VDD_4), 1.65 V to 3.6 V.
20 PA4 bidirectional General-purpose I/O PA4, alternate functions SPI1_NSS/SPI3_NSS/I2S3_WS/USART2_CK, additional functions ADC_IN4/DAC_OUT1/COMP1_INP, standard 3.3V I/O (TC).
21 PA5 bidirectional General-purpose I/O PA5, alternate functions TIM2_CH1_ETR/SPI1_SCK, additional functions ADC_IN5/DAC_OUT2/COMP1_INP, standard 3.3V I/O (TC).
22 PA6 bidirectional General-purpose I/O PA6, alternate functions TIM3_CH1/TIM10_CH1/SPI1_MISO/LCD_SEG3, additional functions ADC_IN6/COMP1_INP/OPAMP2_VINP, 5V-tolerant (FT).
23 PA7 bidirectional General-purpose I/O PA7, alternate functions TIM3_CH2/TIM11_CH1/SPI1_MOSI/LCD_SEG4, additional functions ADC_IN7/COMP1_INP/OPAMP2_VINM, 5V-tolerant (FT).
24 PC4 bidirectional General-purpose I/O PC4, additional functions LCD_SEG22, ADC_IN14/COMP1_INP, 5V-tolerant (FT).
25 PC5 bidirectional General-purpose I/O PC5, additional functions LCD_SEG23, ADC_IN15/COMP1_INP, 5V-tolerant (FT).
26 PB0 bidirectional General-purpose I/O PB0, alternate functions TIM3_CH3/LCD_SEG5, additional functions ADC_IN8/COMP1_INP/OPAMP2_VOUT/VREF_OUT, standard 3.3V I/O (TC).
27 PB1 bidirectional General-purpose I/O PB1, alternate functions TIM3_CH4/LCD_SEG6, additional functions ADC_IN9/COMP1_INP/VREF_OUT, 5V-tolerant (FT).
28 PB2 bidirectional General-purpose I/O PB2, dedicated main function BOOT1, additional function ADC_IN0b, 5V-tolerant (FT).
29 PB10 bidirectional General-purpose I/O PB10, alternate functions TIM2_CH3/I2C2_SCL/USART3_TX/LCD_SEG10, 5V-tolerant (FT).
30 PB11 bidirectional General-purpose I/O PB11, alternate functions TIM2_CH4/I2C2_SDA/USART3_RX/LCD_SEG11, 5V-tolerant (FT).
31 VSS_1 power_in Digital ground supply pin (VSS_1).
32 VDD_1 power_in Digital power supply pin (VDD_1), 1.65 V to 3.6 V.
33 PB12 bidirectional General-purpose I/O PB12, alternate functions TIM10_CH1/I2C2_SMBA/SPI2_NSS/I2S2_WS/USART3_CK/LCD_SEG12, additional functions ADC_IN18/COMP1_INP, 5V-tolerant (FT).
34 PB13 bidirectional General-purpose I/O PB13, alternate functions TIM9_CH1/SPI2_SCK/I2S2_CK/USART3_CTS/LCD_SEG13, additional functions ADC_IN19/COMP1_INP, 5V-tolerant (FT).
35 PB14 bidirectional General-purpose I/O PB14, alternate functions TIM9_CH2/SPI2_MISO/USART3_RTS/LCD_SEG14, additional functions ADC_IN20/COMP1_INP, 5V-tolerant (FT).
36 PB15 bidirectional General-purpose I/O PB15, alternate functions TIM11_CH1/SPI2_MOSI/I2S2_SD/LCD_SEG15, additional functions ADC_IN21/COMP1_INP/RTC_REFIN, 5V-tolerant (FT).
37 PC6 bidirectional General-purpose I/O PC6, alternate functions TIM3_CH1/I2S2_MCK/LCD_SEG24/SDIO_D6, 5V-tolerant (FT).
38 PC7 bidirectional General-purpose I/O PC7, alternate functions TIM3_CH2/I2S3_MCK/LCD_SEG25/SDIO_D7, 5V-tolerant (FT).
39 PC8 bidirectional General-purpose I/O PC8, alternate functions TIM3_CH3/LCD_SEG26/SDIO_D0, 5V-tolerant (FT).
40 PC9 bidirectional General-purpose I/O PC9, alternate functions TIM3_CH4/LCD_SEG27/SDIO_D1, 5V-tolerant (FT).
41 PA8 bidirectional General-purpose I/O PA8, alternate functions USART1_CK/MCO/LCD_COM0, 5V-tolerant (FT).
42 PA9 bidirectional General-purpose I/O PA9, alternate functions USART1_TX/LCD_COM1, 5V-tolerant (FT).
43 PA10 bidirectional General-purpose I/O PA10, alternate functions USART1_RX/LCD_COM2, 5V-tolerant (FT).
44 PA11 bidirectional General-purpose I/O PA11, alternate functions USART1_CTS/SPI1_MISO, additional function USB_DM, 5V-tolerant (FT).
45 PA12 bidirectional General-purpose I/O PA12, alternate functions USART1_RTS/SPI1_MOSI, additional function USB_DP, 5V-tolerant (FT).
46 PA13 bidirectional General-purpose I/O PA13, dedicated main function JTMS-SWDIO (debug), 5V-tolerant (FT).
47 VSS_2 power_in Digital ground supply pin (VSS_2).
48 VDD_2 power_in Digital power supply pin (VDD_2), 1.65 V to 3.6 V.
49 PA14 bidirectional General-purpose I/O PA14, dedicated main function JTCK-SWCLK (debug), 5V-tolerant (FT).
50 PA15 bidirectional General-purpose I/O PA15, main function JTDI, alternate functions TIM2_CH1_ETR/SPI1_NSS/SPI3_NSS/I2S3_WS/LCD_SEG17/JTDI, 5V-tolerant (FT).
51 PC10 bidirectional General-purpose I/O PC10, alternate functions SPI3_SCK/I2S3_CK/USART3_TX/UART4_TX/LCD_SEG28/LCD_SEG40/LCD_COM4/SDIO_D2, 5V-tolerant (FT).
52 PC11 bidirectional General-purpose I/O PC11, alternate functions SPI3_MISO/USART3_RX/UART4_RX/LCD_SEG29/LCD_SEG41/LCD_COM5/SDIO_D3, 5V-tolerant (FT).
53 PC12 bidirectional General-purpose I/O PC12, alternate functions SPI3_MOSI/I2S3_SD/USART3_CK/UART5_TX/LCD_SEG30/LCD_SEG42/LCD_COM6/SDIO_CK, 5V-tolerant (FT).
54 PD2 bidirectional General-purpose I/O PD2, alternate functions TIM3_ETR/UART5_RX/LCD_SEG31/LCD_SEG43/LCD_COM7/SDIO_CMD, 5V-tolerant (FT).
55 PB3 bidirectional General-purpose I/O PB3, main function JTDO, alternate functions TIM2_CH2/SPI1_SCK/SPI3_SCK/I2S3_CK/LCD_SEG7/JTDO, additional function COMP2_INM, 5V-tolerant (FT).
56 PB4 bidirectional General-purpose I/O PB4, main function NJTRST, alternate functions TIM3_CH1/SPI1_MISO/SPI3_MISO/LCD_SEG8/NJTRST, additional function COMP2_INP, 5V-tolerant (FT).
57 PB5 bidirectional General-purpose I/O PB5, alternate functions TIM3_CH2/I2C1_SMBA/SPI1_MOSI/SPI3_MOSI/I2S3_SD/LCD_SEG9, additional function COMP2_INP, 5V-tolerant (FT).
58 PB6 bidirectional General-purpose I/O PB6, alternate functions TIM4_CH1/I2C1_SCL/USART1_TX, additional function COMP2_INP, 5V-tolerant (FT).
59 PB7 bidirectional General-purpose I/O PB7, alternate functions TIM4_CH2/I2C1_SDA/USART1_RX/FSMC_NADV, additional functions COMP2_INP/PVD_IN, 5V-tolerant (FT).
60 BOOT0 input Dedicated boot mode select input pin (type B), sampled at reset to select the boot memory.
61 PB8 bidirectional General-purpose I/O PB8, alternate functions TIM4_CH3/TIM10_CH1/I2C1_SCL/LCD_SEG16/SDIO_D4, 5V-tolerant (FT).
62 PB9 bidirectional General-purpose I/O PB9, alternate functions TIM4_CH4/TIM11_CH1/I2C1_SDA/LCD_COM3/SDIO_D5, 5V-tolerant (FT).
63 VSS_3 power_in Digital ground supply pin (VSS_3).
64 VDD_3 power_in Digital power supply pin (VDD_3), 1.65 V to 3.6 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: STM32L151RDT6
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: stm32l151rdt6-etched.step / stm32l151rdt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l151rdt6.step / stm32l151rdt6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (155 pp, sha256 92c7b8f244edf6a6, 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