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Contents

README

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STM32L083VZT6

STMicroelectronics · Microcontroller Units (MCUs/MPUs/SOCs) · LQFP-100(14x14)

STM32L083VZT6 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 LCD_SEG38 and TIM3_ETR; floating input after reset unless a note states otherwise.
2 PE3 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM22_CH1, LCD_SEG39 and TIM3_CH1.
3 PE4 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM22_CH2 and TIM3_CH2.
4 PE5 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM21_CH1 and TIM3_CH3.
5 PE6 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM21_CH2 and TIM3_CH4; additional function RTC_TAMP3/WKUP3.
6 VLCD power_in LCD power supply pin for the LCD controller, generated on board by the step-up converter.
7 PC13 bidirectional 5 V tolerant (FT) I/O; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2.
8 PC14-OSC32_IN bidirectional 5 V tolerant (FT) I/O shared with the 32 kHz oscillator input OSC32_IN.
9 PC15-OSC32_OUT bidirectional Standard 3.3 V (TC) I/O shared with the 32 kHz oscillator output OSC32_OUT.
10 PH9 bidirectional 5 V tolerant (FT) general-purpose I/O with no alternate or additional functions listed.
11 PH10 bidirectional 5 V tolerant (FT) general-purpose I/O with no alternate or additional functions listed.
12 PH0-OSC_IN bidirectional Standard 3.3 V (TC) I/O; alternate function USB_CRS_SYNC; additional function OSC_IN (high-speed oscillator input).
13 PH1-OSC_OUT bidirectional Standard 3.3 V (TC) I/O; additional function OSC_OUT (high-speed oscillator output).
14 NRST bidirectional Bidirectional reset pin with an embedded weak pull-up resistor.
15 PC0 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX and I2C3_SCL; additional function ADC_IN10.
16 PC1 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX and I2C3_SDA; additional function ADC_IN11.
17 PC2 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK and TSC_G7_IO3; additional function ADC_IN12.
18 PC3 bidirectional 5 V tolerant (FT) I/O; alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD and TSC_G7_IO4; additional function ADC_IN13.
19 VSSA power_in Analog ground pin for the analog peripherals.
20 VREF- power_in Negative reference voltage pin for the ADC.
21 VREF+ power_in Positive reference voltage input for the ADC and DAC.
22 VDDA power_in Analog supply pin for the analog peripherals (ADC, DAC, comparators, reference).
23 PA0 bidirectional Standard 3.3 V (TC) I/O; alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT; additional functions COMP1_INM, ADC_IN0 and RTC_TAMP2/WKUP1.
24 PA1 bidirectional 5 V tolerant (FT) I/O; alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX; additional functions COMP1_INP and ADC_IN1.
25 PA2 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX and COMP2_OUT; additional functions COMP2_INM and ADC_IN2.
26 PA3 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX and LPUART1_RX; additional functions COMP2_INP and ADC_IN3.
27 VSS power_in Digital ground pin.
28 VDD power_in Digital supply pin for the core and I/Os.
29 PA4 bidirectional Standard 3.3 V (TC) I/O with reduced touch sensing sensitivity, recommended for use as sampling capacitor I/O; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK and TIM22_ETR; additional functions COMP1_INM, COMP2_INM, ADC_IN4 and DAC_OUT1.
30 PA5 bidirectional Standard 3.3 V (TC) I/O; alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1; additional functions COMP1_INM, COMP2_INM, ADC_IN5 and DAC_OUT2.
31 PA6 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT; additional function ADC_IN6.
32 PA7 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT; additional function ADC_IN7.
33 PC4 bidirectional 5 V tolerant (FT) I/O; alternate functions EVENTOUT, LCD_SEG22 and LPUART1_TX; additional function ADC_IN14.
34 PC5 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG23, LPUART1_RX and TSC_G3_IO1; additional function ADC_IN15.
35 PB0 bidirectional 5 V tolerant (FT) I/O; alternate functions EVENTOUT, LCD_SEG5, TIM3_CH3 and TSC_G3_IO2; additional functions LCD_VLCD3, ADC_IN8 and VREF_OUT.
36 PB1 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG6, TIM3_CH4, TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE; additional functions ADC_IN9 and VREF_OUT.
37 PB2 bidirectional 5 V tolerant (FT) I/O; alternate functions LPTIM1_OUT, TSC_G3_IO4 and I2C3_SMBA; additional function LCD_VLCD2.
38 PE7 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG45 and USART5_CK/USART5_RTS/USART5_DE.
39 PE8 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG46 and USART4_TX.
40 PE9 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH1, LCD_SEG47, TIM2_ETR and USART4_RX.
41 PE10 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH2, LCD_SEG40 and USART5_TX.
42 PE11 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH3 and USART5_RX; additional function LCD_VLCD1.
43 PE12 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM2_CH4 and SPI1_NSS; additional function LCD_VLCD3.
44 PE13 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG41 and SPI1_SCK.
45 PE14 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG42 and SPI1_MISO.
46 PE15 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG43 and SPI1_MOSI.
47 PB10 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL and LPUART1_RX.
48 PB11 bidirectional 5 V tolerant (FT) I/O; alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA and LPUART1_TX.
49 VSS power_in Digital ground pin.
50 VDD power_in Digital supply pin for the core and I/Os.
51 PB12 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA and EVENTOUT; additional function LCD_VLCD1.
52 PB13 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, MCO, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL and TIM21_CH1.
53 PB14 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA and TIM21_CH2.
54 PB15 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15 and RTC_REFIN.
55 PD8 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_TX and LCD_SEG28.
56 PD9 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_RX and LCD_SEG29.
57 PD10 bidirectional 5 V tolerant (FT) I/O; alternate function LCD_SEG30.
58 PD11 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_CTS and LCD_SEG31.
59 PD12 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_RTS/LPUART1_DE and LCD_SEG32.
60 PD13 bidirectional 5 V tolerant (FT) I/O; alternate function LCD_SEG33.
61 PD14 bidirectional 5 V tolerant (FT) I/O; alternate function LCD_SEG34.
62 PD15 bidirectional 5 V tolerant (FT) I/O; alternate functions USB_CRS_SYNC and LCD_SEG35.
63 PC6 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM22_CH1, LCD_SEG24, TIM3_CH1 and TSC_G8_IO1.
64 PC7 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM22_CH2, LCD_SEG25, TIM3_CH2 and TSC_G8_IO2.
65 PC8 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM22_ETR, LCD_SEG26, TIM3_CH3 and TSC_G8_IO3.
66 PC9 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions TIM21_ETR, LCD_SEG27, USB_NOE/TIM3_CH4, TSC_G8_IO4 and I2C3_SDA.
67 PA8 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK and I2C3_SCL.
68 PA9 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL and I2C3_SMBA.
69 PA10 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX and I2C1_SDA.
70 PA11 bidirectional 5 V tolerant (FT) I/O powered by VDD_USB; alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT; additional function USB_DM.
71 PA12 bidirectional 5 V tolerant (FT) I/O powered by VDD_USB; alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE and COMP2_OUT; additional function USB_DP.
72 PA13 bidirectional 5 V tolerant (FT) I/O; alternate functions SWDIO, USB_NOE and LPUART1_RX.
73 VDD power_in Digital supply pin for the core and I/Os.
74 VSS power_in Digital ground pin.
75 VDD_USB power_in Supply pin for the USB-powered I/Os PA11 and PA12; VDD_USB must be used for characteristics that refer to VDD on those pins.
76 PA14 bidirectional 5 V tolerant (FT) I/O; alternate functions SWCLK, USART2_TX and LPUART1_TX.
77 PA15 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1 and USART4_RTS/USART4_DE.
78 PC10 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_TX, LCD_COM4/LCD_SEG28/LCD_SEG48 and USART4_TX.
79 PC11 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_RX, LCD_COM5/LCD_SEG29/LCD_SEG49 and USART4_RX.
80 PC12 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_COM6/LCD_SEG30/LCD_SEG50, USART5_TX and USART4_CK.
81 PD0 bidirectional 5 V tolerant (FT) I/O; alternate functions TIM21_CH1 and SPI2_NSS/I2S2_WS.
82 PD1 bidirectional 5 V tolerant (FT) I/O; alternate function SPI2_SCK/I2S2_CK.
83 PD2 bidirectional 5 V tolerant (FT) I/O; alternate functions LPUART1_RTS/LPUART1_DE, LCD_COM7/LCD_SEG31/LCD_SEG51, TIM3_ETR and USART5_RX.
84 PD3 bidirectional 5 V tolerant (FT) I/O; alternate functions USART2_CTS, LCD_SEG44 and SPI2_MISO/I2S2_MCK.
85 PD4 bidirectional 5 V tolerant (FT) I/O; alternate functions USART2_RTS/USART2_DE and SPI2_MOSI/I2S2_SD.
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 USART2_CK and TIM21_CH2.
89 PB3 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT, USART1_RTS/USART1_DE and USART5_TX; additional function COMP2_INM.
90 PB4 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions SPI1_MISO, LCD_SEG8, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA; additional function COMP2_INP.
91 PB5 bidirectional 5 V tolerant (FT) I/O; alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE; additional function COMP2_INP.
92 PB6 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3; additional function COMP2_INP.
93 PB7 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4 and USART4_CTS; additional functions COMP2_INP and PVD_IN.
94 BOOT0 input Dedicated BOOT0 pin used for boot mode selection.
95 PB8 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LCD_SEG16, TSC_SYNC and I2C1_SCL.
96 PB9 bidirectional 5 V tolerant, FM+ capable (FTf) I/O; alternate functions LCD_COM3, EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS.
97 PE0 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG36 and EVENTOUT.
98 PE1 bidirectional 5 V tolerant (FT) I/O; alternate functions LCD_SEG37 and EVENTOUT.
99 VSS power_in Digital ground pin.
100 VDD power_in Digital supply pin for the core and I/Os.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-100(14x14)
Category Single Chip Microcomputer/Microcontroller
Pins 100

CAD (KiCad official)

  • Symbol: STM32L083VZT6
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32l083vzt6-etched.step / stm32l083vzt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l083vzt6.step / stm32l083vzt6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (149 pp, sha256 1462680d1cd25fe2, 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