The STM32L431xx devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32L431xx devices embed high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix. The STM32L431xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall. The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers. In addition, up to 21 capacitive sensing channels are available. They also feature standard and advanced communication interfaces. The STM32L431xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparators. A VBAT input allows to backup the RTC and backup registers. The STM32L431xx family offers nine packages from 32 to 100-pin packages. https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2021-10-08 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2021-12-06 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2022-01-22 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2022-02-08 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2022-04-26 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2022-06-10 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2022-06-23 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2023-03-25 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2023-07-29 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2023-10-13 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2024-01-21 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2024-03-08 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2024-06-21 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2024-09-17 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2024-12-14 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2025-03-06 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2025-11-04 https://elecena.pl/product/19575066/stm32l431cbt6tr-ultra-low-power-with-fpu-arm-cortex-m4-mcu-80-mhz-with-128-kbytes-of-flash-memory 2026-03-24