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STM32L073VBT6TR

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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 & controllersstm32l073vbt6trfactory-2.0.0extractor-text
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Contents

README

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STM32L073VBT6TR

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

STM32L073VBT6TR 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 LCD_SEG38, TIM3_ETR; no additional functions listed.
2 PE3 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM22_CH1, LCD_SEG39, TIM3_CH1; no additional functions listed.
3 PE4 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM22_CH2, TIM3_CH2; no additional functions listed.
4 PE5 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM21_CH1, TIM3_CH3; no additional functions listed.
5 PE6 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM21_CH2, TIM3_CH4; additional function RTC_TAMP3/WKUP3.
6 VLCD power_in LCD supply pin (type S); the LCD features cite an on-board step-up converter and the VLCD voltage may be higher than VDDA.
7 PC13 bidirectional 5 V-tolerant I/O (FT); no alternate functions; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2.
8 PC14-OSC32_IN bidirectional 5 V-tolerant I/O (FT); additional function OSC32_IN for the 32 kHz oscillator input.
9 PC15-OSC32_OUT bidirectional Standard 3.3 V I/O (TC); additional function OSC32_OUT for the 32 kHz oscillator output.
10 PH9 bidirectional 5 V-tolerant I/O (FT); no alternate or additional functions listed.
11 PH10 bidirectional 5 V-tolerant I/O (FT); no alternate or additional functions listed.
12 PH0-OSC_IN bidirectional Standard 3.3 V I/O (TC); alternate function USB_CRS_SYNC; additional function OSC_IN as crystal oscillator input.
13 PH1-OSC_OUT bidirectional Standard 3.3 V I/O (TC); additional function OSC_OUT as crystal oscillator output.
14 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor (RST type).
15 PC0 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX, I2C3_SCL; additional function ADC_IN10.
16 PC1 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX, I2C3_SDA; additional function ADC_IN11.
17 PC2 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK, TSC_G7_IO3; additional function ADC_IN12.
18 PC3 bidirectional 5 V-tolerant I/O (FT); alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD, TSC_G7_IO4; additional function ADC_IN13.
19 VSSA power_in Analog ground supply pin (type S); no further limits are stated in the pin definition table.
20 VREF- power_in Negative reference voltage pin (type S) that is included in the ADC characteristics.
21 VREF+ power_in Positive reference voltage pin (type S); the DAC section lists an input reference voltage VREF+.
22 VDDA power_in Analog supply pin (type S); the ADC and DAC characteristics reference VDDA.
23 PA0 bidirectional Standard 3.3 V I/O (TC); alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX, COMP1_OUT; additional functions COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1.
24 PA1 bidirectional 5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR, USART4_RX; additional functions COMP1_INP, ADC_IN1.
25 PA2 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX, COMP2_OUT; additional functions COMP2_INM, ADC_IN2.
26 PA3 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX, LPUART1_RX; additional functions COMP2_INP, ADC_IN3.
27 VSS power_in Ground pin (type S); all voltages are referenced to VSS.
28 VDD power_in Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V.
29 PA4 bidirectional Standard 3.3 V I/O (TC) with reduced touch sensing sensitivity, recommended for use as sampling capacitor I/O; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR; additional functions COMP1_INM, COMP2_INM, ADC_IN4, DAC_OUT1.
30 PA5 bidirectional Standard 3.3 V I/O (TC); alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1; additional functions COMP1_INM, COMP2_INM, ADC_IN5, DAC_OUT2.
31 PA6 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT; additional function ADC_IN6.
32 PA7 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT; additional function ADC_IN7.
33 PC4 bidirectional 5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG22, LPUART1_TX; additional function ADC_IN14.
34 PC5 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG23, LPUART1_RX, TSC_G3_IO1; additional function ADC_IN15.
35 PB0 bidirectional 5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG5, TIM3_CH3, TSC_G3_IO2; additional functions LCD_VLCD3, ADC_IN8, VREF_OUT.
36 PB1 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG6, TIM3_CH4, TSC_G3_IO3, LPUART1_RTS/LPUART1_DE; additional functions ADC_IN9, VREF_OUT.
37 PB2 bidirectional 5 V-tolerant I/O (FT); alternate functions LPTIM1_OUT, TSC_G3_IO4, I2C3_SMBA; additional function LCD_VLCD2.
38 PE7 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG45, USART5_CK/USART5_RTS/USART5_DE; no additional functions listed.
39 PE8 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG46, USART4_TX; no additional functions listed.
40 PE9 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM2_CH1, LCD_SEG47, TIM2_ETR, USART4_RX; no additional functions listed.
41 PE10 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM2_CH2, LCD_SEG40, USART5_TX; no additional functions listed.
42 PE11 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM2_CH3, USART5_RX; additional function LCD_VLCD1.
43 PE12 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM2_CH4, SPI1_NSS; additional function LCD_VLCD3.
44 PE13 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG41, SPI1_SCK; no additional functions listed.
45 PE14 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG42, SPI1_MISO; no additional functions listed.
46 PE15 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG43, SPI1_MOSI; no additional functions listed.
47 PB10 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL, LPUART1_RX; no additional functions listed.
48 PB11 bidirectional 5 V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA, LPUART1_TX; no additional functions listed.
49 VSS power_in Ground pin (type S); all voltages are referenced to VSS.
50 VDD power_in Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V.
51 PB12 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA, EVENTOUT; additional function LCD_VLCD1.
52 PB13 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, MCO, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL, TIM21_CH1; no additional functions listed.
53 PB14 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA, TIM21_CH2; no additional functions listed.
54 PB15 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15, RTC_REFIN; no additional functions listed.
55 PD8 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_TX, LCD_SEG28; no additional functions listed.
56 PD9 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_RX, LCD_SEG29; no additional functions listed.
57 PD10 bidirectional 5 V-tolerant I/O (FT); alternate function LCD_SEG30; no additional functions listed.
58 PD11 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_CTS, LCD_SEG31; no additional functions listed.
59 PD12 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_RTS/LPUART1_DE, LCD_SEG32; no additional functions listed.
60 PD13 bidirectional 5 V-tolerant I/O (FT); alternate function LCD_SEG33; no additional functions listed.
61 PD14 bidirectional 5 V-tolerant I/O (FT); alternate function LCD_SEG34; no additional functions listed.
62 PD15 bidirectional 5 V-tolerant I/O (FT); alternate functions USB_CRS_SYNC, LCD_SEG35; no additional functions listed.
63 PC6 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM22_CH1, LCD_SEG24, TIM3_CH1, TSC_G8_IO1; no additional functions listed.
64 PC7 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM22_CH2, LCD_SEG25, TIM3_CH2, TSC_G8_IO2; no additional functions listed.
65 PC8 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM22_ETR, LCD_SEG26, TIM3_CH3, TSC_G8_IO3; no additional functions listed.
66 PC9 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions TIM21_ETR, LCD_SEG27, USB_NOE/TIM3_CH4, TSC_G8_IO4, I2C3_SDA; no additional functions listed.
67 PA8 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK, I2C3_SCL; no additional functions listed.
68 PA9 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL, I2C3_SMBA; no additional functions listed.
69 PA10 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX, I2C1_SDA; no additional functions listed.
70 PA11 bidirectional 5 V-tolerant I/O (FT), powered by VDD_USB; alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT; additional function USB_DM.
71 PA12 bidirectional 5 V-tolerant I/O (FT), powered by VDD_USB; alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, COMP2_OUT; additional function USB_DP.
72 PA13 bidirectional 5 V-tolerant I/O (FT); alternate functions SWDIO, USB_NOE, LPUART1_RX; no additional functions listed.
73 VDD power_in Digital supply pin (type S); the datasheet feature list gives the device supply range as 1.65 V to 3.6 V.
74 VSS power_in Ground pin (type S); all voltages are referenced to VSS.
75 VDD_USB power_in Supply pin for the USB-powered I/Os (PA11, PA12); VDD-referenced characteristics for those pins must use VDD_USB.
76 PA14 bidirectional 5 V-tolerant I/O (FT); alternate functions SWCLK, USART2_TX, LPUART1_TX; no additional functions listed.
77 PA15 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1, USART4_RTS/USART4_DE; no additional functions listed.
78 PC10 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_TX, LCD_COM4/LCD_SEG28/LCD_SEG48, USART4_TX; no additional functions listed.
79 PC11 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_RX, LCD_COM5/LCD_SEG29/LCD_SEG49, USART4_RX; no additional functions listed.
80 PC12 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_COM6/LCD_SEG30/LCD_SEG50, USART5_TX, USART4_CK; no additional functions listed.
81 PD0 bidirectional 5 V-tolerant I/O (FT); alternate functions TIM21_CH1, SPI2_NSS/I2S2_WS; no additional functions listed.
82 PD1 bidirectional 5 V-tolerant I/O (FT); alternate function SPI2_SCK/I2S2_CK; no additional functions listed.
83 PD2 bidirectional 5 V-tolerant I/O (FT); alternate functions LPUART1_RTS/LPUART1_DE, LCD_COM7/LCD_SEG31/LCD_SEG51, TIM3_ETR, USART5_RX; no additional functions listed.
84 PD3 bidirectional 5 V-tolerant I/O (FT); alternate functions USART2_CTS, LCD_SEG44, SPI2_MISO/I2S2_MCK; no additional functions listed.
85 PD4 bidirectional 5 V-tolerant I/O (FT); alternate functions USART2_RTS/USART2_DE, SPI2_MOSI/I2S2_SD; no additional functions listed.
86 PD5 bidirectional 5 V-tolerant I/O (FT); alternate function USART2_TX; no additional functions listed.
87 PD6 bidirectional 5 V-tolerant I/O (FT); alternate function USART2_RX; no additional functions listed.
88 PD7 bidirectional 5 V-tolerant I/O (FT); alternate functions USART2_CK, TIM21_CH2; no additional functions listed.
89 PB3 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT, USART1_RTS/USART1_DE, USART5_TX; additional function COMP2_INM.
90 PB4 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions SPI1_MISO, LCD_SEG8, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX, I2C3_SDA; additional function COMP2_INP.
91 PB5 bidirectional 5 V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK, USART5_RTS/USART5_DE; additional function COMP2_INP.
92 PB6 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3; additional function COMP2_INP.
93 PB7 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4, USART4_CTS; additional functions COMP2_INP, PVD_IN.
94 BOOT0 input Dedicated BOOT0 pin (type I, marked B in the pin legend) with no I/O structure or alternate functions listed.
95 PB8 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_SEG16, TSC_SYNC, I2C1_SCL; no additional functions listed.
96 PB9 bidirectional 5 V-tolerant I/O with Fm+ capability (FTf); alternate functions LCD_COM3, EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS; no additional functions listed.
97 PE0 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG36, EVENTOUT; no additional functions listed.
98 PE1 bidirectional 5 V-tolerant I/O (FT); alternate functions LCD_SEG37, EVENTOUT; no additional functions listed.
99 VSS power_in Ground pin (type S); all voltages are referenced to VSS.
100 VDD power_in Digital supply pin (type S); the datasheet feature list gives the device supply range as 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: STM32L073VBT6TR
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32l073vbt6tr-etched.step / stm32l073vbt6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l073vbt6tr.step / stm32l073vbt6tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (149 pp, sha256 bffef32a7e5a5562, 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