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Contents

README

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STM32L151VET6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)

STM32L151VET6 from STMicroelectronics, in a LQFP-100(14x14). 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 PE2 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_ETR, LCD_SEG38, TRACECLK.
2 PE3 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH1, LCD_SEG39, TRACED0.
3 PE4 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH2, TRACED1.
4 PE5 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM9_CH1, TRACED2.
5 PE6-WKUP3 bidirectional 5 V tolerant (FT) I/O; wakeup pin WKUP3 (also RTC_TAMP3); alternate functions TIM9_CH2, TRACED3.
6 VLCD power_in LCD power supply pin; per the datasheet it applies to STM32L152xE only and must be connected to VDD on STM32L151xE devices.
7 PC13-WKUP2 bidirectional 5 V tolerant (FT) I/O; wakeup pin WKUP2 (also RTC_TAMP1, RTC_TS, RTC_OUT).
8 PC14-OSC32_IN bidirectional Standard 3.3 V (TC) I/O; functions as OSC32_IN only when the LSE oscillator is on, otherwise general-purpose PC14.
9 PC15-OSC32_OUT bidirectional Standard 3.3 V (TC) I/O; functions as OSC32_OUT only when the LSE oscillator is on, otherwise general-purpose PC15.
10 VSS_5 power_in Ground pin.
11 VDD_5 power_in Digital supply pin; device power supply range is 1.65 V to 3.6 V.
12 PH0-OSC_IN bidirectional Standard 3.3 V (TC) I/O; functions as HSE OSC_IN only when the HSE oscillator is on, otherwise general-purpose PH0.
13 PH1-OSC_OUT bidirectional Standard 3.3 V (TC) I/O; functions as HSE OSC_OUT only when the HSE oscillator is on, otherwise general-purpose PH1.
14 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
15 PC0 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG18, ADC_IN10, COMP1_INP.
16 PC1 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG19, ADC_IN11, COMP1_INP.
17 PC2 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG20, ADC_IN12, COMP1_INP.
18 PC3 bidirectional Standard 3.3 V (TC) I/O; alternate functions LCD_SEG21, ADC_IN13, COMP1_INP.
19 VSSA power_in Analog ground pin for the ADC, DAC and comparator blocks.
20 VREF- power_in ADC negative reference voltage; the datasheet states VSSA or VREF- must be tied to ground.
21 VREF+ power_in ADC/DAC positive reference voltage, 1.8 V to VDDA; may be grounded if neither the ADC nor the DAC is used.
22 VDDA power_in Analog supply pin; ADC supply range is 1.8 V to 3.6 V.
23 PA0-WKUP1 bidirectional 5 V tolerant (FT) I/O; wakeup pin WKUP1 (also RTC_TAMP2); alternate functions TIM2_CH1_ETR, TIM5_CH1, USART2_CTS, ADC_IN0, COMP1_INP.
24 PA1 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH2, TIM5_CH2, USART2_RTS, LCD_SEG0, ADC_IN1, COMP1_INP, OPAMP1_VINP.
25 PA2 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH3, TIM5_CH3, TIM9_CH1, USART2_TX, LCD_SEG1, ADC_IN2, COMP1_INP, OPAMP1_VINM.
26 PA3 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM2_CH4, TIM5_CH4, TIM9_CH2, USART2_RX, LCD_SEG2, ADC_IN3, COMP1_INP, OPAMP1_VOUT.
27 VSS_4 power_in Ground pin.
28 VDD_4 power_in Digital supply pin; device power supply range is 1.65 V to 3.6 V.
29 PA4 bidirectional Standard 3.3 V (TC) I/O; alternate functions SPI1_NSS, SPI3_NSS, I2S3_WS, USART2_CK, ADC_IN4, DAC_OUT1, COMP1_INP.
30 PA5 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM2_CH1_ETR, SPI1_SCK, ADC_IN5, DAC_OUT2, COMP1_INP.
31 PA6 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH1, TIM10_CH1, SPI1_MISO, LCD_SEG3, ADC_IN6, COMP1_INP, OPAMP2_VINP.
32 PA7 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH2, TIM11_CH1, SPI1_MOSI, LCD_SEG4, ADC_IN7, COMP1_INP, OPAMP2_VINM.
33 PC4 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG22, ADC_IN14, COMP1_INP.
34 PC5 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG23, ADC_IN15, COMP1_INP.
35 PB0 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM3_CH3, LCD_SEG5, ADC_IN8, COMP1_INP, OPAMP2_VOUT, VREF_OUT.
36 PB1 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH4, LCD_SEG6, ADC_IN9, COMP1_INP, VREF_OUT.
37 PB2-BOOT1 bidirectional 5 V tolerant (FT) I/O; also BOOT1 pin and ADC_IN0b input.
38 PE7 bidirectional Standard 3.3 V (TC) I/O; alternate functions ADC_IN22, COMP1_INP.
39 PE8 bidirectional Standard 3.3 V (TC) I/O; alternate functions ADC_IN23, COMP1_INP.
40 PE9 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM2_CH1_ETR, ADC_IN24, COMP1_INP.
41 PE10 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM2_CH2, ADC_IN25, COMP1_INP.
42 PE11 bidirectional 5 V tolerant (FT) I/O; alternate function TIM2_CH3.
43 PE12 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH4, SPI1_NSS.
44 PE13 bidirectional 5 V tolerant (FT) I/O; alternate function SPI1_SCK.
45 PE14 bidirectional 5 V tolerant (FT) I/O; alternate function SPI1_MISO.
46 PE15 bidirectional 5 V tolerant (FT) I/O; alternate function SPI1_MOSI.
47 PB10 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH3, I2C2_SCL, USART3_TX, LCD_SEG10.
48 PB11 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH4, I2C2_SDA, USART3_RX, LCD_SEG11.
49 VSS_1 power_in Ground pin.
50 VDD_1 power_in Digital supply pin; device power supply range is 1.65 V to 3.6 V.
51 PB12 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM10_CH1, I2C2_SMBA, SPI2_NSS, I2S2_WS, USART3_CK, LCD_SEG12, ADC_IN18, COMP1_INP.
52 PB13 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM9_CH1, SPI2_SCK, I2S2_CK, USART3_CTS, LCD_SEG13, ADC_IN19, COMP1_INP.
53 PB14 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM9_CH2, SPI2_MISO, USART3_RTS, LCD_SEG14, ADC_IN20, COMP1_INP.
54 PB15 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM11_CH1, SPI2_MOSI, I2S2_SD, LCD_SEG15, ADC_IN21, COMP1_INP, RTC_REFIN.
55 PD8 bidirectional 5 V tolerant (FT) I/O; alternate functions USART3_TX, LCD_SEG28.
56 PD9 bidirectional 5 V tolerant (FT) I/O; alternate functions USART3_RX, LCD_SEG29.
57 PD10 bidirectional 5 V tolerant (FT) I/O; alternate functions USART3_CK, LCD_SEG30.
58 PD11 bidirectional 5 V tolerant (FT) I/O; alternate functions USART3_CTS, LCD_SEG31.
59 PD12 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH1, USART3_RTS, LCD_SEG32.
60 PD13 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH2, LCD_SEG33.
61 PD14 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH3, LCD_SEG34.
62 PD15 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH4, LCD_SEG35.
63 PC6 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH1, I2S2_MCK, LCD_SEG24.
64 PC7 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH2, I2S3_MCK, LCD_SEG25.
65 PC8 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH3, LCD_SEG26.
66 PC9 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH4, LCD_SEG27.
67 PA8 bidirectional 5 V tolerant (FT) I/O; alternate functions MCO, USART1_CK, LCD_COM0.
68 PA9 bidirectional 5 V tolerant (FT) I/O; alternate functions USART1_TX, LCD_COM1.
69 PA10 bidirectional 5 V tolerant (FT) I/O; alternate functions USART1_RX, LCD_COM2.
70 PA11 bidirectional 5 V tolerant (FT) I/O; alternate functions USART1_CTS, SPI1_MISO, USB_DM.
71 PA12 bidirectional 5 V tolerant (FT) I/O; alternate functions USART1_RTS, SPI1_MOSI, USB_DP.
72 PA13 bidirectional 5 V tolerant (FT) I/O; default function JTMS-SWDIO (SWJ debug).
73 PH2 bidirectional 5 V tolerant (FT) I/O; no alternate function is listed for this pin in the datasheet.
74 VSS_2 power_in Ground pin.
75 VDD_2 power_in Digital supply pin; device power supply range is 1.65 V to 3.6 V.
76 PA14 bidirectional 5 V tolerant (FT) I/O; default function JTCK-SWCLK (SWJ debug).
77 PA15 bidirectional 5 V tolerant (FT) I/O; default function JTDI; alternate functions TIM2_CH1_ETR, SPI1_NSS, SPI3_NSS, I2S3_WS, LCD_SEG17.
78 PC10 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI3_SCK, I2S3_CK, USART3_TX, UART4_TX, LCD_SEG28, LCD_SEG40, LCD_COM4.
79 PC11 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI3_MISO, USART3_RX, UART4_RX, LCD_SEG29, LCD_SEG41, LCD_COM5.
80 PC12 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI3_MOSI, I2S3_SD, USART3_CK, UART5_TX, LCD_SEG30, LCD_SEG42, LCD_COM6.
81 PD0 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM9_CH1, SPI2_NSS, I2S2_WS.
82 PD1 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI2_SCK, I2S2_CK.
83 PD2 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_ETR, UART5_RX, LCD_SEG31, LCD_SEG43, LCD_COM7.
84 PD3 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI2_MISO, USART2_CTS.
85 PD4 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI2_MOSI, I2S2_SD, USART2_RTS.
86 PD5 bidirectional 5 V tolerant (FT) I/O; alternate function USART2_TX.
87 PD6 bidirectional 5 V tolerant (FT) I/O; alternate function USART2_RX.
88 PD7 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM9_CH2, USART2_CK.
89 PB3 bidirectional 5 V tolerant (FT) I/O; default function JTDO; alternate functions TIM2_CH2, SPI1_SCK, SPI3_SCK, I2S3_CK, LCD_SEG7, COMP2_INM.
90 PB4 bidirectional 5 V tolerant (FT) I/O; default function NJTRST; alternate functions TIM3_CH1, SPI1_MISO, SPI3_MISO, LCD_SEG8, COMP2_INP.
91 PB5 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM3_CH2, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, I2S3_SD, LCD_SEG9, COMP2_INP.
92 PB6 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH1, I2C1_SCL, USART1_TX, COMP2_INP.
93 PB7 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH2, I2C1_SDA, USART1_RX, COMP2_INP, PVD_IN.
94 BOOT0 input Dedicated BOOT0 pin used to select the boot mode.
95 PB8 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH3, TIM10_CH1, I2C1_SCL, LCD_SEG16.
96 PB9 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_CH4, TIM11_CH1, I2C1_SDA, LCD_COM3.
97 PE0 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM4_ETR, TIM10_CH1, LCD_SEG36.
98 PE1 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM11_CH1, LCD_SEG37.
99 VSS_3 power_in Ground pin.
100 VDD_3 power_in Digital supply pin; device power supply range is 1.65 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-100(14x14)
Category Embedded Processors & Controllers
Pins 100

CAD (KiCad official)

  • Symbol: STM32L151VET6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32l151vet6-etched.step / stm32l151vet6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l151vet6.step / stm32l151vet6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (134 pp, sha256 5ba9cf9c3778b434, 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