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STM32L031F6P7
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32L031F6P7
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · TSSOP-20
STM32L031F6P7 from STMicroelectronics, in a TSSOP-20. 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 | BOOT0 | input | Bootstrap pin to select boot mode (Flash memory, System memory, or embedded RAM) during device startup |
| 2 | PC14-OSC32_IN | bidirectional | 32.768 kHz oscillator input pin for low-speed external crystal or general-purpose I/O pin configured as standard CMOS level |
| 3 | PC15-OSC32_OUT | bidirectional | 32.768 kHz oscillator output pin for low-speed external crystal or general-purpose I/O pin configured as standard CMOS level |
| 4 | NRST | bidirectional | External reset input pin with embedded weak pull-up resistor (25 to 65 kΩ) for device reset control |
| 5 | VDDA | power_in | Analog power supply voltage (1.65 to 3.6 V) for ADC, reset blocks, RCs and PLL |
| 6 | PA0-CK_IN | bidirectional | General-purpose I/O port A pin 0, LPTIM input, timer channels, USART/LPUART signals, comparator output, or high-speed external clock input |
| 7 | PA1 | bidirectional | General-purpose I/O port A pin 1 (5V tolerant), supports LPTIM, timer channels, I2C, USART, and event output functions |
| 8 | PA2 | bidirectional | General-purpose I/O port A pin 2 (standard 3.3V I/O), supports timer channels, USART, LPUART, and comparator output functions |
| 9 | PA3 | bidirectional | General-purpose I/O port A pin 3 (5V tolerant), supports timer channels, USART, and LPUART functions |
| 10 | PA4 | bidirectional | General-purpose I/O port A pin 4 (standard 3.3V I/O), supports SPI, LPTIM, USART, timer, and comparator input functions |
| 11 | PA5 | bidirectional | General-purpose I/O port A pin 5 (standard 3.3V I/O), supports SPI, LPTIM, and timer functions |
| 12 | PA6 | bidirectional | General-purpose I/O port A pin 6 (5V tolerant), supports SPI, LPTIM, timer, event output, and comparator output functions |
| 13 | PA7 | bidirectional | General-purpose I/O port A pin 7 (5V tolerant), supports SPI, LPTIM, timer, event output, and comparator output functions |
| 14 | PB1 | bidirectional | General-purpose I/O port B pin 1 (5V tolerant), supports USART clock, SPI, and LPUART functions |
| 15 | VSS | power_out | Ground supply connection (0 V reference) for device |
| 16 | VDD | power_in | Main power supply voltage (1.65 to 3.6 V) for I/Os and internal regulator |
| 17 | PA9 | bidirectional | General-purpose I/O port A pin 9 (5V tolerant with FM+ Fast Mode Plus capability), supports I2C, USART, and timer functions |
| 18 | PA10 | bidirectional | General-purpose I/O port A pin 10 (5V tolerant with FM+ Fast Mode Plus capability), supports I2C, USART, and timer functions |
| 19 | PA13 | bidirectional | General-purpose I/O port A pin 13 (5V tolerant), serial wire debug I/O (SWDIO), supports LPTIM and LPUART functions |
| 20 | PA14 | bidirectional | General-purpose I/O port A pin 14 (5V tolerant), serial wire debug clock (SWCLK), supports I2C, USART, LPTIM, and LPUART functions |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
STM32L031F6P7 - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
stm32l031f6p7-etched.step/stm32l031f6p7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32l031f6p7.step/stm32l031f6p7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (126 pp, sha256
9726c48418e03f62, retrieved 2026-09-23, tier: manufacturer) - 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).