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STM32L452VET6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

componentembedded processors & controllersstm32l452vet6factory-2.0.0extractor-text
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Contents

README

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STM32L452VET6

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

STM32L452VET6 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 I/O (FT); alternate functions TRACECK, TIM3_ETR, TSC_G7_IO1, SAI1_MCLK_A; additional function none listed.
2 PE3 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED0, TIM3_CH1, TSC_G7_IO2, SAI1_SD_B.
3 PE4 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED1, TIM3_CH2, DFSDM1_DATIN3, TSC_G7_IO3, SAI1_FS_A.
4 PE5 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED2, TIM3_CH3, DFSDM1_CKIN3, TSC_G7_IO4, SAI1_SCK_A.
5 PE6 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED3, TIM3_CH4, SAI1_SD_A; additional function RTC_TAMP3/WKUP3.
6 VBAT power_in Backup domain supply, 1.55 V to 3.6 V, supplying RTC and 32x32-bit backup registers in VBAT mode.
7 PC13 bidirectional I/O (FT) supplied through the power switch, which sinks only 3 mA, so output speed must not exceed 2 MHz with 30 pF load and the pin must not source current (e.g. LEDs); additional function RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2.
8 PC14-OSC32_IN bidirectional I/O (FT) with the same power-switch limits as PC13 (max 3 mA, 2 MHz at 30 pF, no current sourcing); additional function OSC32_IN for the 32 kHz LSE crystal.
9 PC15-OSC32_OUT bidirectional I/O (FT) with the same power-switch limits as PC13 (max 3 mA, 2 MHz at 30 pF, no current sourcing); additional function OSC32_OUT for the 32 kHz LSE crystal.
10 VSS power_in Ground pin; all VSS and VSSA pins must always be connected to ground within the permitted range.
11 VDD power_in Main supply pin; standard operating voltage 1.71 V to 3.6 V.
12 PH0-OSC_IN bidirectional I/O (FT) used as high-speed oscillator input OSC_IN for the 4 to 48 MHz crystal oscillator.
13 PH1-OSC_OUT bidirectional I/O (FT) used as high-speed oscillator output OSC_OUT for the 4 to 48 MHz crystal oscillator.
14 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
15 PC0 bidirectional 5 V-tolerant I/O (FT_fa) with Fm+ capability; alternate functions LPTIM1_IN1, I2C4_SCL, I2C3_SCL, LPUART1_RX, LPTIM2_IN1; additional function ADC1_IN1.
16 PC1 bidirectional 5 V-tolerant I/O (FT_fa) with Fm+ capability; alternate functions TRACED0, LPTIM1_OUT, I2C4_SDA, I2C3_SDA, LPUART1_TX; additional function ADC1_IN2.
17 PC2 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions LPTIM1_IN2, SPI2_MISO, DFSDM1_CKOUT; additional function ADC1_IN3.
18 PC3 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions LPTIM1_ETR, SPI2_MOSI, SAI1_SD_A, LPTIM2_ETR; additional function ADC1_IN4.
19 VSSA power_in Analog ground pin for ADC, DAC, OPAMP, COMP and VREFBUF; must be connected to ground within the permitted range.
20 VREF- power_in Negative ADC reference voltage, equal to VSSA.
21 VREF+ power_in Positive ADC reference voltage: 2 V to VDDA when VDDA is at least 2 V, otherwise VDDA; also the VREFBUF_OUT function.
22 VDDA power_in Analog supply: 1.62 V to 3.6 V when ADC or COMP is used, 1.8 V minimum when DAC or OPAMP is used, 2.4 V minimum when VREFBUF is used.
23 PA0 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM2_CH1, USART2_CTS, UART4_TX, COMP1_OUT, SAI1_EXTCLK, TIM2_ETR; additional functions OPAMP1_VINP, COMP1_INM, ADC1_IN5, RTC_TAMP2/WKUP1.
24 PA1 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM2_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, UART4_RX, TIM15_CH1N; additional functions OPAMP1_VINM, COMP1_INP, ADC1_IN6.
25 PA2 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM2_CH3, USART2_TX, LPUART1_TX, QUADSPI_BK1_NCS, COMP2_OUT, TIM15_CH1; additional functions COMP2_INM, ADC1_IN7, WKUP4/LSCO.
26 PA3 bidirectional 3.6 V-tolerant I/O (TT_a) with analog switch supplied by VDDA; alternate functions TIM2_CH4, USART2_RX, LPUART1_RX, QUADSPI_CLK, SAI1_MCLK_A, TIM15_CH2; additional functions OPAMP1_VOUT, COMP2_INP, ADC1_IN8.
27 VSS power_in Ground pin; must be connected to ground within the permitted range.
28 VDD power_in Main supply pin; standard operating voltage 1.71 V to 3.6 V.
29 PA4 bidirectional 3.6 V-tolerant I/O (TT_a) with analog switch supplied by VDDA; alternate functions SPI1_NSS, SPI3_NSS, USART2_CK, SAI1_FS_B, LPTIM2_OUT; additional functions COMP1_INM, COMP2_INM, ADC1_IN9, DAC1_OUT1.
30 PA5 bidirectional 3.6 V-tolerant I/O (TT_a) with analog switch supplied by VDDA; alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, DFSDM1_CKOUT, LPTIM2_ETR; additional functions COMP1_INM, COMP2_INM, ADC1_IN10.
31 PA6 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM1_BKIN, TIM3_CH1, SPI1_MISO, COMP1_OUT, USART3_CTS, LPUART1_CTS, QUADSPI_BK1_IO3, TIM1_BKIN_COMP2, TIM16_CH1; additional function ADC1_IN11.
32 PA7 bidirectional 5 V-tolerant I/O (FT_fa) with Fm+ capability; alternate functions TIM1_CH1N, TIM3_CH2, I2C3_SCL, SPI1_MOSI, DFSDM1_DATIN0, QUADSPI_BK1_IO2, COMP2_OUT; additional function ADC1_IN12.
33 PC4 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate function USART3_TX; additional functions COMP1_INM, ADC1_IN13.
34 PC5 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate function USART3_RX; additional functions COMP1_INP, ADC1_IN14, WKUP5.
35 PB0 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM1_CH2N, TIM3_CH3, SPI1_NSS, DFSDM1_CKIN0, USART3_CK, QUADSPI_BK1_IO1, COMP1_OUT, SAI1_EXTCLK; additional function ADC1_IN15.
36 PB1 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions TIM1_CH3N, TIM3_CH4, DFSDM1_DATIN0, USART3_RTS_DE, LPUART1_RTS_DE, QUADSPI_BK1_IO0, LPTIM2_IN1; additional functions COMP1_INM, ADC1_IN16.
37 PB2 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA; alternate functions RTC_OUT, LPTIM1_OUT, I2C3_SMBA, DFSDM1_CKIN0; additional function COMP1_INP.
38 PE7 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_ETR, DFSDM1_DATIN2, SAI1_SD_B.
39 PE8 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH1N, DFSDM1_CKIN2, SAI1_SCK_B.
40 PE9 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH1, DFSDM1_CKOUT, SAI1_FS_B.
41 PE10 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH2N, TSC_G5_IO1, QUADSPI_CLK, SAI1_MCLK_B.
42 PE11 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH2, TSC_G5_IO2, QUADSPI_BK1_NCS.
43 PE12 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH3N, SPI1_NSS, TSC_G5_IO3, QUADSPI_BK1_IO0.
44 PE13 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH3, SPI1_SCK, TSC_G5_IO4, QUADSPI_BK1_IO1.
45 PE14 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_CH4, TIM1_BKIN2, TIM1_BKIN2_COMP2, SPI1_MISO, QUADSPI_BK1_IO2.
46 PE15 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_BKIN, TIM1_BKIN_COMP1, SPI1_MOSI, QUADSPI_BK1_IO3.
47 PB10 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM2_CH3, I2C4_SCL, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX, TSC_SYNC, QUADSPI_CLK, COMP1_OUT, SAI1_SCK_A.
48 PB11 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM2_CH4, I2C4_SDA, I2C2_SDA, USART3_RX, LPUART1_TX, QUADSPI_BK1_NCS, COMP2_OUT.
49 VSS power_in Ground pin; must be connected to ground within the permitted range.
50 VDD power_in Main supply pin; standard operating voltage 1.71 V to 3.6 V.
51 PB12 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM1_BKIN, TIM1_BKIN_COMP2, I2C2_SMBA, SPI2_NSS, DFSDM1_DATIN1, USART3_CK, LPUART1_RTS_DE, TSC_G1_IO1, CAN1_RX, SAI1_FS_A, TIM15_BKIN.
52 PB13 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM1_CH1N, I2C2_SCL, SPI2_SCK, DFSDM1_CKIN1, USART3_CTS, LPUART1_CTS, TSC_G1_IO2, CAN1_TX, SAI1_SCK_A, TIM15_CH1N.
53 PB14 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM1_CH2N, I2C2_SDA, SPI2_MISO, DFSDM1_DATIN2, USART3_RTS_DE, TSC_G1_IO3, SAI1_MCLK_A, TIM15_CH1.
54 PB15 bidirectional 5 V-tolerant I/O (FT); alternate functions RTC_REFIN, TIM1_CH3N, SPI2_MOSI, DFSDM1_CKIN2, TSC_G1_IO4, SAI1_SD_A, TIM15_CH2.
55 PD8 bidirectional 5 V-tolerant I/O (FT); alternate function USART3_TX.
56 PD9 bidirectional 5 V-tolerant I/O (FT); alternate function USART3_RX.
57 PD10 bidirectional 5 V-tolerant I/O (FT); alternate functions USART3_CK, TSC_G6_IO1.
58 PD11 bidirectional 5 V-tolerant I/O (FT); alternate functions I2C4_SMBA, USART3_CTS, TSC_G6_IO2, LPTIM2_ETR.
59 PD12 bidirectional 5 V-tolerant I/O (FT); alternate functions I2C4_SCL, USART3_RTS_DE, TSC_G6_IO3, LPTIM2_IN1.
60 PD13 bidirectional 5 V-tolerant I/O (FT); alternate functions I2C4_SDA, TSC_G6_IO4, LPTIM2_OUT.
61 PD14 bidirectional 5 V-tolerant I/O (FT) with no alternate function listed beyond EVENTOUT.
62 PD15 bidirectional 5 V-tolerant I/O (FT) with no alternate function listed beyond EVENTOUT.
63 PC6 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM3_CH1, DFSDM1_CKIN3, TSC_G4_IO1, SDMMC1_D6.
64 PC7 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM3_CH2, DFSDM1_DATIN3, TSC_G4_IO2, SDMMC1_D7.
65 PC8 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM3_CH3, TSC_G4_IO3, SDMMC1_D0.
66 PC9 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM3_CH4, TSC_G4_IO4, USB_NOE, SDMMC1_D1.
67 PA8 bidirectional 5 V-tolerant I/O (FT); alternate functions MCO, TIM1_CH1, DFSDM1_CKIN1, USART1_CK, SAI1_SCK_A, LPTIM2_OUT.
68 PA9 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM1_CH2, I2C1_SCL, DFSDM1_DATIN1, USART1_TX, SAI1_FS_A, TIM15_BKIN.
69 PA10 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions TIM1_CH3, I2C1_SDA, USART1_RX, USB_CRS_SYNC, SAI1_SD_A.
70 PA11 bidirectional 5 V-tolerant I/O (FT_u) with USB function supplied by VDDUSB; alternate functions TIM1_CH4, TIM1_BKIN2, SPI1_MISO, COMP1_OUT, USART1_CTS, CAN1_RX, USB_DM, TIM1_BKIN2_COMP1.
71 PA12 bidirectional 5 V-tolerant I/O (FT_u) with USB function supplied by VDDUSB; alternate functions TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, CAN1_TX, USB_DP.
72 PA13 bidirectional 5 V-tolerant I/O (FT) whose function after reset is JTMS/SWDAT; alternate functions IR_OUT, USB_NOE, SAI1_SD_B; internal pull-up is active after reset.
73 VDDUSB power_in USB supply: 3.0 V to 3.6 V when USB is used; 0 to 3.6 V when USB is not used.
74 VSS power_in Ground pin; must be connected to ground within the permitted range.
75 VDD power_in Main supply pin; standard operating voltage 1.71 V to 3.6 V.
76 PA14 bidirectional 5 V-tolerant I/O (FT) whose function after reset is JTCK/SWCLK with internal pull-down active; alternate functions LPTIM1_OUT, I2C1_SMBA, I2C4_SMBA, SAI1_FS_B.
77 PA15 bidirectional 5 V-tolerant I/O (FT) whose function after reset is JTDI with internal pull-up active; alternate functions TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, SPI3_NSS, USART3_RTS_DE, UART4_RTS_DE, TSC_G3_IO1.
78 PC10 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED1, SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2, SDMMC1_D2.
79 PC11 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3, SDMMC1_D3.
80 PC12 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED3, SPI3_MOSI, USART3_CK, TSC_G3_IO4, SDMMC1_CK.
81 PD0 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_NSS, CAN1_RX.
82 PD1 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_SCK, CAN1_TX.
83 PD2 bidirectional 5 V-tolerant I/O (FT); alternate functions TRACED2, TIM3_ETR, USART3_RTS_DE, TSC_SYNC, SDMMC1_CMD.
84 PD3 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_MISO, DFSDM1_DATIN0, USART2_CTS, QUADSPI_BK2_NCS.
85 PD4 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_MOSI, DFSDM1_CKIN0, USART2_RTS_DE, QUADSPI_BK2_IO0.
86 PD5 bidirectional 5 V-tolerant I/O (FT); alternate functions USART2_TX, QUADSPI_BK2_IO1.
87 PD6 bidirectional 5 V-tolerant I/O (FT); alternate functions DFSDM1_DATIN1, USART2_RX, QUADSPI_BK2_IO2, SAI1_SD_A.
88 PD7 bidirectional 5 V-tolerant I/O (FT); alternate functions DFSDM1_CKIN1, USART2_CK, QUADSPI_BK2_IO3.
89 PB3 bidirectional 5 V-tolerant I/O (FT_a) with analog switch supplied by VDDA whose function after reset is JTDO/TRACESWO; alternate functions TIM2_CH2, SPI1_SCK, SPI3_SCK, USART1_RTS_DE, SAI1_SCK_B; additional function COMP2_INM.
90 PB4 bidirectional 5 V-tolerant I/O (FT_fa) whose function after reset is NJTRST with internal pull-up active; alternate functions TIM3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, USART1_CTS, TSC_G2_IO1, SAI1_MCLK_B; additional function COMP2_INP.
91 PB5 bidirectional 5 V-tolerant I/O (FT); alternate functions LPTIM1_IN1, TIM3_CH2, CAN1_RX, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, USART1_CK, TSC_G2_IO2, COMP2_OUT, SAI1_SD_B, TIM16_BKIN.
92 PB6 bidirectional 5 V-tolerant I/O (FT_fa) with Fm+ capability and analog switch supplied by VDDA; alternate functions LPTIM1_ETR, I2C1_SCL, I2C4_SCL, USART1_TX, CAN1_TX, TSC_G2_IO3, SAI1_FS_B, TIM16_CH1N; additional function COMP2_INP.
93 PB7 bidirectional 5 V-tolerant I/O (FT_fa) with Fm+ capability and analog switch supplied by VDDA; alternate functions LPTIM1_IN2, I2C1_SDA, I2C4_SDA, USART1_RX, UART4_CTS, TSC_G2_IO4; additional functions COMP2_INM, PVD_IN.
94 PH3-BOOT0 bidirectional 5 V-tolerant I/O (FT) that also serves as the BOOT0 boot-mode pin; no alternate function listed beyond EVENTOUT.
95 PB8 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions I2C1_SCL, CAN1_RX, SDMMC1_D4, SAI1_MCLK_A, TIM16_CH1.
96 PB9 bidirectional 5 V-tolerant I/O (FT_f) with Fm+ capability; alternate functions IR_OUT, I2C1_SDA, SPI2_NSS, CAN1_TX, SDMMC1_D5, SAI1_FS_A.
97 PE0 bidirectional 5 V-tolerant I/O (FT); alternate function TIM16_CH1.
98 PE1 bidirectional 5 V-tolerant I/O (FT) with no alternate function listed beyond EVENTOUT.
99 VSS power_in Ground pin; must be connected to ground within the permitted range.
100 VDD power_in Main supply pin; standard operating voltage 1.71 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: STM32L452VET6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32l452vet6-etched.step / stm32l452vet6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l452vet6.step / stm32l452vet6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (221 pp, sha256 0c90cbe36d057ab4, 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