component

STM32L081CBT6

Public Made by Adom

by adom

STMicroelectronics Microcontroller Units (MCUs/MPUs/SOCs), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollerstm32l081cbt6factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 1d ago
viewers stm32l081cbt6: viewers · Ray 1d ago
package.json Publish 0.1.0 · Ray 1d ago
page.json Set visibility: public · Ray 1d ago
README.md Initial commit: component/stm32l081cbt6 · Ray 1d ago
stm32l081cbt6-etched.glb stm32l081cbt6: factory component page (tier=lcsc) · Ray 1d ago
stm32l081cbt6-etched.step stm32l081cbt6: factory component page (tier=lcsc) · Ray 1d ago
stm32l081cbt6-hero.glb stm32l081cbt6: hero GLB from the etched model (keeps the MPN mark) · Ray 1d ago
stm32l081cbt6-hero.overlay.json Publish 0.1.0 · Ray 1d ago
stm32l081cbt6.glb Publish 0.1.0 · Ray 1d ago
stm32l081cbt6.kicad_mod Publish 0.1.0 · Ray 1d ago
stm32l081cbt6.kicad_sym Publish 0.1.0 · Ray 1d ago
stm32l081cbt6.lbr Publish 0.1.0 · Ray 1d ago
stm32l081cbt6.step Publish 0.1.0 · Ray 1d ago

STM32L081CBT6

STMicroelectronics · Microcontroller Units (MCUs/MPUs/SOCs) · LQFP-48(7x7)

STM32L081CBT6 from STMicroelectronics, in a LQFP-48(7x7). 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 VDD power_in Main digital supply pin; the device operates from a 1.65 V to 3.6 V power supply.
2 PC13 bidirectional General-purpose 5 V tolerant I/O (FT), also used for RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2 functions.
3 PC14-OSC32_IN bidirectional 5 V tolerant I/O (FT) that serves as the 32 kHz oscillator input OSC32_IN.
4 PC15-OSC32_OUT bidirectional I/O (TC standard 3.3 V) that serves as the 32 kHz oscillator output OSC32_OUT.
5 PH0-OSC_IN bidirectional I/O (TC standard 3.3 V) that serves as the high-speed oscillator input OSC_IN.
6 PH1-OSC_OUT bidirectional I/O (TC standard 3.3 V) that serves as the high-speed oscillator output OSC_OUT.
7 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
8 VSSA power_in Analog ground pin for the ADC, reference and analog peripherals.
9 VDDA power_in Analog supply pin; VDDA minimum is 1.65 V per the revision history.
10 PA0 bidirectional General-purpose I/O (TTa structure) with alternate functions TIM2_CH1, USART2_CTS, TIM2_ETR, USART4_TX, COMP1_OUT and additional functions COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1.
11 PA1 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE, TIM21_ETR, USART4_RX and additional functions COMP1_INP, ADC_IN1.
12 PA2 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX, COMP2_OUT and additional functions COMP2_INM, ADC_IN2.
13 PA3 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions TIM21_CH2, TIM2_CH4, USART2_RX, LPUART1_RX and additional functions COMP2_INP, ADC_IN3.
14 PA4 bidirectional Standard 3.3 V I/O (TC) with alternate functions SPI1_NSS, USART2_CK, TIM22_ETR and additional functions COMP1_INM, COMP2_INM, ADC_IN4.
15 PA5 bidirectional Standard 3.3 V I/O (TC) with alternate functions SPI1_SCK, TIM2_ETR, TIM2_CH1 and additional functions COMP1_INM, COMP2_INM, ADC_IN5.
16 PA6 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions SPI1_MISO, TIM3_CH1, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT and additional function ADC_IN6.
17 PA7 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions SPI1_MOSI, TIM3_CH2, TIM22_CH2, EVENTOUT, COMP2_OUT and additional function ADC_IN7.
18 PB0 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions EVENTOUT, TIM3_CH3 and additional functions ADC_IN8, VREF_OUT.
19 PB1 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions TIM3_CH4, LPUART1_RTS/LPUART1_DE and additional functions ADC_IN9, VREF_OUT.
20 PB2 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions LPTIM1_OUT and I2C3_SMBA.
21 PB10 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions TIM2_CH3, LPUART1_TX, SPI2_SCK, I2C2_SCL, LPUART1_RX.
22 PB11 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions EVENTOUT, TIM2_CH4, LPUART1_RX, I2C2_SDA, LPUART1_TX.
23 VSS power_in Digital ground pin.
24 VDD power_in Main digital supply pin; the device operates from a 1.65 V to 3.6 V power supply.
25 PB12 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions SPI2_NSS/I2S2_WS, LPUART1_RTS/LPUART1_DE, I2C2_SMBA, EVENTOUT.
26 PB13 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions SPI2_SCK/I2S2_CK, MCO, LPUART1_CTS, I2C2_SCL, TIM21_CH1.
27 PB14 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions SPI2_MISO/I2S2_MCK, RTC_OUT, LPUART1_RTS/LPUART1_DE, I2C2_SDA, TIM21_CH2.
28 PB15 bidirectional 5 V tolerant general-purpose I/O (FT) with alternate functions SPI2_MOSI/I2S2_SD and RTC_REFIN.
29 PA8 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions MCO, EVENTOUT, USART1_CK, I2C3_SCL.
30 PA9 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions MCO, USART1_TX, I2C1_SCL, I2C3_SMBA.
31 PA10 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions USART1_RX and I2C1_SDA.
32 PA11 bidirectional 5 V tolerant I/O (FT) supplied by VDDIO2, with alternate functions SPI1_MISO, EVENTOUT, USART1_CTS, COMP1_OUT.
33 PA12 bidirectional 5 V tolerant I/O (FT) supplied by VDDIO2, with alternate functions SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE, COMP2_OUT.
34 PA13 bidirectional 5 V tolerant I/O (FT) with alternate functions SWDIO (serial wire debug data) and LPUART1_RX.
35 VSS power_in Digital ground pin.
36 VDDIO2 power_in Dedicated supply pin for the PA11 and PA12 I/Os.
37 PA14 bidirectional 5 V tolerant I/O (FT) with alternate functions SWCLK (serial wire debug clock), USART2_TX and LPUART1_TX.
38 PA15 bidirectional 5 V tolerant I/O (FT) with alternate functions SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1, USART4_RTS/USART4_DE.
39 PB3 bidirectional 5 V tolerant I/O (FT) with alternate functions SPI1_SCK, TIM2_CH2, EVENTOUT, USART1_RTS/USART1_DE, USART5_TX and additional function COMP2_INM.
40 PB4 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions SPI1_MISO, TIM3_CH1, TIM22_CH1, USART1_CTS, USART5_RX, I2C3_SDA and additional function COMP2_INP.
41 PB5 bidirectional 5 V tolerant I/O (FT) with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK, USART5_RTS/USART5_DE and additional function COMP2_INP.
42 PB6 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and additional function COMP2_INP.
43 PB7 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, USART4_CTS and additional functions COMP2_INP, VREF_PVD_IN.
44 BOOT0 input Dedicated BOOT0 pin used for boot mode selection.
45 PB8 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate function I2C1_SCL.
46 PB9 bidirectional 5 V tolerant FM+ capable I/O (FTf) with alternate functions EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS.
47 VSS power_in Digital ground pin.
48 VDD power_in Main digital supply pin; the device operates from a 1.65 V to 3.6 V power supply.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-48(7x7)
Category Single Chip Microcomputer/Microcontroller
Pins 48

CAD (KiCad official)

  • Symbol: STM32L081CBT6
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: stm32l081cbt6-etched.step / stm32l081cbt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l081cbt6.step / stm32l081cbt6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (118 pp, sha256 532497d05b12f218, 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