component
STM32L073V8T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-100(14x14). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSTM32L073V8T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)
STM32L073V8T6 from STMicroelectronics, in a LQFP-100(14x14). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PE2 | bidirectional | General purpose I/O, 5V tolerant, can be used as LCD segment 38 or external trigger input for TIM3. |
| 2 | PE3 | bidirectional | General purpose I/O, 5V tolerant, can be used as LCD segment 39 or TIM22 channel 1 input/output. |
| 3 | PE4 | bidirectional | General purpose I/O, 5V tolerant, can be used as TIM22 channel 2 or TIM3 channel 2. |
| 4 | PE5 | bidirectional | General purpose I/O, 5V tolerant, can be used as TIM21 channel 1 or TIM3 channel 3. |
| 5 | PE6 | bidirectional | General purpose I/O, 5V tolerant, can be used as TIM21 channel 2, TIM3 channel 4, or RTC tamper/wakeup input 3. |
| 6 | VLCD | power_in | Liquid crystal display external voltage supply pin for LCD controller. |
| 7 | PC13 | bidirectional | General purpose I/O, 5V tolerant, can be used for RTC tamper detection, RTC timestamp, or wakeup input 2. |
| 8 | PC14 | bidirectional | Crystal oscillator input pin (OSC32_IN) for 32.768 kHz external clock or general purpose I/O. |
| 9 | PC15 | bidirectional | Crystal oscillator output pin (OSC32_OUT) for 32.768 kHz external clock or general purpose I/O. |
| 10 | PH9 | bidirectional | General purpose I/O, 5V tolerant. |
| 11 | PH10 | bidirectional | General purpose I/O, 5V tolerant. |
| 12 | PH0 | bidirectional | Crystal oscillator input pin (OSC_IN) for 1 to 25 MHz external clock or USB clock recovery sync signal. |
| 13 | PH1 | bidirectional | Crystal oscillator output pin (OSC_OUT) for 1 to 25 MHz external clock. |
| 14 | NRST | bidirectional | System reset input pin with embedded weak pull-up resistor, 50 ns input filter. |
| 15 | PC0 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used as LPTIM input, LCD segment, touch sensing input, LPUART receive, I2C3 clock, or ADC channel 10. |
| 16 | PC1 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used as LPTIM output, LCD segment, touch sensing input, LPUART transmit, I2C3 data, or ADC channel 11. |
| 17 | PC2 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used as LPTIM input, LCD segment, SPI2 receive, or ADC channel 12. |
| 18 | PC3 | bidirectional | General purpose I/O, 5V tolerant, can be used as LPTIM external trigger, LCD segment, SPI2 transmit, or ADC channel 13. |
| 19 | VSSA | power_in | Analog ground reference pin, must be connected to same ground plane as VSS. |
| 20 | VREF- | power_in | Negative voltage reference input pin for ADC, typically connected to ground. |
| 21 | VREF+ | power_in | Positive voltage reference input pin for ADC, must be 1.65 V to VDDA. |
| 22 | VDDA | power_in | Analog supply voltage pin, 1.65 to 3.6 V, must be same voltage as VDD with max 300 mV difference. |
| 23 | PA0 | bidirectional | General purpose I/O, standard 3.3V, can be used for TIM2, touch sensing, USART handshake, or ADC channel 0 with comparator input. |
| 24 | PA1 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM2, LCD segment, touch sensing, USART handshake, or ADC channel 1 with comparator input. |
| 25 | PA2 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM21/TIM2, LCD segment, touch sensing, USART transmit, LPUART transmit, or ADC channel 2 with comparator input. |
| 26 | PA3 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM21/TIM2, LCD segment, touch sensing, USART receive, LPUART receive, or ADC channel 3 with comparator input. |
| 27 | VSS | power_in | Ground return pin for digital circuits. |
| 28 | VDD | power_in | Main digital supply voltage pin, 1.65 to 3.6 V (1.8 to 3.6 V with BOR enabled). |
| 29 | PA4 | bidirectional | General purpose I/O, standard 3.3V with reduced touch sensing sensitivity, can be used as SPI1 chip select, touch sensing, USART clock, or DAC channel 1 output with comparator input. |
| 30 | PA5 | bidirectional | General purpose I/O, standard 3.3V, can be used for SPI1 clock, TIM2, touch sensing, or DAC channel 2 output with comparator input. |
| 31 | PA6 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI1 receive, TIM3, LCD segment, touch sensing, LPUART handshake, or comparator 1 output. |
| 32 | PA7 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI1 transmit, TIM3, LCD segment, touch sensing, or comparator 2 output. |
| 33 | PC4 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 22, LPUART transmit, or ADC channel 14. |
| 34 | PC5 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 23, LPUART receive, touch sensing, or ADC channel 15. |
| 35 | PB0 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM3, LCD segment, touch sensing, LCD bias voltage output 3, or ADC channel 8 with voltage reference output. |
| 36 | PB1 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM3, LCD segment, LPUART handshake, or ADC channel 9 with voltage reference output. |
| 37 | PB2 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPTIM output, touch sensing, I2C3 address masking, or LCD bias voltage output 1. |
| 38 | PE7 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 45 or USART5 clock/RTS. |
| 39 | PE8 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 46 or USART4 transmit. |
| 40 | PE9 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM2, LCD segment 47, or USART4 receive. |
| 41 | PE10 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM2 channel 2, LCD segment 40, or USART5 transmit. |
| 42 | PE11 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM2 channel 3, USART5 receive, or LCD bias voltage output 2. |
| 43 | PE12 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM2 channel 4, SPI1 chip select, or LCD bias voltage output 3. |
| 44 | PE13 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 41 or SPI1 clock. |
| 45 | PE14 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 42 or SPI1 receive. |
| 46 | PE15 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 43 or SPI1 transmit. |
| 47 | PB10 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 10, TIM2, touch sensing sync, LPUART, SPI2 clock, or I2C2 clock. |
| 48 | PB11 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 11, TIM2, touch sensing, LPUART receive/transmit, or I2C2 data. |
| 49 | VSS | power_in | Ground return pin for digital circuits. |
| 50 | VDD | power_in | Main digital supply voltage pin, 1.65 to 3.6 V (1.8 to 3.6 V with BOR enabled). |
| 51 | PB12 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI2 chip select, LCD segment 12, LPUART handshake, touch sensing, I2C2 address masking, or LCD bias voltage output 2. |
| 52 | PB13 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for SPI2 clock, LCD segment 13, microcontroller clock output, touch sensing, LPUART handshake, or I2C2 clock. |
| 53 | PB14 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for SPI2 receive, LCD segment 14, RTC clock output, touch sensing, LPUART handshake, or I2C2 data. |
| 54 | PB15 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI2 transmit, LCD segment 15, or RTC reference clock input. |
| 55 | PD8 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART transmit or LCD segment 28. |
| 56 | PD9 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART receive or LCD segment 29. |
| 57 | PD10 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 30. |
| 58 | PD11 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART handshake or LCD segment 31. |
| 59 | PD12 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART handshake or LCD segment 32. |
| 60 | PD13 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 33. |
| 61 | PD14 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 34. |
| 62 | PD15 | bidirectional | General purpose I/O, 5V tolerant, can be used for USB clock recovery sync or LCD segment 35. |
| 63 | PC6 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM22, LCD segment 24, TIM3, or touch sensing. |
| 64 | PC7 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM22, LCD segment 25, TIM3, or touch sensing. |
| 65 | PC8 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM22, LCD segment 26, TIM3, or touch sensing. |
| 66 | PC9 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for TIM21, LCD segment 27, USB output enable, TIM3, touch sensing, or I2C3 data with comparator input. |
| 67 | PA8 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for microcontroller clock output, LCD common 0, USB clock recovery, USART1 clock, or I2C3 clock. |
| 68 | PA9 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for microcontroller clock output, LCD common 1, touch sensing, USART1 transmit, I2C1 clock, or I2C3 address masking. |
| 69 | PA10 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for LCD common 2, touch sensing, USART1 receive, or I2C1 data. |
| 70 | PA11 | bidirectional | General purpose I/O, 5V tolerant, powered by VDD_USB, can be used for SPI1 receive, USB differential minus (DM), touch sensing, USART1 handshake, or comparator 1 output, maximum sink current 25 mA. |
| 71 | PA12 | bidirectional | General purpose I/O, 5V tolerant, powered by VDD_USB, can be used for SPI1 transmit, USB differential plus (DP), touch sensing, USART1 handshake, or comparator 2 output, maximum sink current 25 mA. |
| 72 | PA13 | bidirectional | General purpose I/O, 5V tolerant, can be used for serial wire debug input (SWDIO), USB output enable, or LPUART receive. |
| 73 | VDD | power_in | Main digital supply voltage pin, 1.65 to 3.6 V (1.8 to 3.6 V with BOR enabled). |
| 74 | VSS | power_in | Ground return pin for digital circuits. |
| 75 | VDD_USB | power_in | USB transceiver supply voltage pin, 3.0 to 3.6 V when USB is used, 1.65 to 3.6 V when USB is not used, powers PA11 and PA12. |
| 76 | PA14 | bidirectional | General purpose I/O, 5V tolerant, can be used for serial wire debug clock (SWCLK), USART2 transmit, or LPUART transmit. |
| 77 | PA15 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI1 chip select, LCD segment 17, TIM2, USART2 receive, or USART4 handshake. |
| 78 | PC10 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART transmit, LCD common/segment multiplexed, or USART4 transmit. |
| 79 | PC11 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART receive, LCD common/segment multiplexed, or USART4 receive. |
| 80 | PC12 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD common/segment multiplexed, USART5 transmit, or USART4 clock. |
| 81 | PD0 | bidirectional | General purpose I/O, 5V tolerant, can be used for TIM21 channel 1 or SPI2 chip select. |
| 82 | PD1 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI2 clock. |
| 83 | PD2 | bidirectional | General purpose I/O, 5V tolerant, can be used for LPUART handshake, LCD common/segment multiplexed, TIM3 external trigger, or USART5 receive. |
| 84 | PD3 | bidirectional | General purpose I/O, 5V tolerant, can be used for USART2 handshake, LCD segment 44, or SPI2 receive. |
| 85 | PD4 | bidirectional | General purpose I/O, 5V tolerant, can be used for USART2 handshake or SPI2 transmit. |
| 86 | PD5 | bidirectional | General purpose I/O, 5V tolerant, can be used for USART2 transmit. |
| 87 | PD6 | bidirectional | General purpose I/O, 5V tolerant, can be used for USART2 receive. |
| 88 | PD7 | bidirectional | General purpose I/O, 5V tolerant, can be used for USART2 clock or TIM21 channel 2. |
| 89 | PB3 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI1 clock, LCD segment 7, TIM2, touch sensing, USART1 handshake, USART5 transmit, or comparator 2 input minus. |
| 90 | PB4 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for SPI1 receive, LCD segment 8, TIM3, touch sensing, TIM22, USART1 handshake, USART5 receive, I2C3 data, or comparator 2 input plus. |
| 91 | PB5 | bidirectional | General purpose I/O, 5V tolerant, can be used for SPI1 transmit, LCD segment 9, LPTIM, I2C1 address masking, TIM3/TIM22, USART1 clock, or USART5 clock with comparator 2 input plus. |
| 92 | PB6 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for USART1 transmit, I2C1 clock, LPTIM external trigger, touch sensing, or comparator 2 input plus. |
| 93 | PB7 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for USART1 receive, I2C1 data, LPTIM input, touch sensing, USART4 handshake, programmable voltage detector input, or comparator 2 input plus. |
| 94 | BOOT0 | input | Boot mode selection pin, 0 = boot from flash, 1 = boot from system memory or RAM, sampled during reset. |
| 95 | PB8 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for LCD segment 16, touch sensing sync, or I2C1 clock. |
| 96 | PB9 | bidirectional | General purpose I/O, 5V tolerant FM+ capable, can be used for LCD common 3, touch sensing, I2C1 data, or SPI2 chip select. |
| 97 | PE0 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 36 or event output. |
| 98 | PE1 | bidirectional | General purpose I/O, 5V tolerant, can be used for LCD segment 37 or event output. |
| 99 | VSS | power_in | Ground return pin for digital circuits. |
| 100 | VDD | power_in | Main digital supply voltage pin, 1.65 to 3.6 V (1.8 to 3.6 V with BOR enabled). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-100(14x14) |
| Category | Embedded Processors & Controllers |
| Pins | 100 |
CAD (KiCad official)
- Symbol:
STM32L073V8T6 - Footprint:
Package_QFP:LQFP-100_14x14mm_P0.5mm - 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
- 3D model files:
stm32l073v8t6-etched.step/stm32l073v8t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32l073v8t6.step/stm32l073v8t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (143 pp, sha256
d18a133d6d1a71aa, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).