STMicroelectronics 32 bit ARM Cortex M4 Microcontroller 80 MHz, 256kB FLASH, 64kB RAM, 48-Pin LQFP STM32L431CBT6

STMicroelectronics STM32L431CBT6 is a 32 bit ARM Cortex M4 core microcontroller designed for low power and high performance embedded applications. It integrates 256kB of ISP flash memory and 64kB of SRAM, operating at a clock speed up to 80 MHz. This microcontroller supports a rich set of peripherals and interfaces suitable for industrial, automotive, consumer electronics, and control systems.

Operating over a broad temperature range from -40°C to 85°C, the device ensures reliable performance in diverse environments. The 48-pin LQFP package offers a compact footprint with 83 programmable I/O pins, facilitating versatile connectivity.

Advanced features include two 12-bit digital-to-analog converters (DACs), ten 12-bit analog-to-digital converters (ADCs) with hardware oversampling capabilities, two 12-bit DACs with sample and hold, a floating-point unit (FPU) supporting double-precision and single-precision data processing, and a memory protection unit (MPU) enhancing application security.

The STM32L431CBT6 further includes multiple timers - including 16-bit advanced motor control timers and watchdog timers - ensuring precise control and safety monitoring. Serial communication interfaces such as CAN, UART, I2C, LIN, CSI, and IEBus enable integration with a variety of industrial and consumer peripherals. An Ethernet MAC interface with DMA controller and an internal 48 MHz clock recovery system support demanding networked applications.

The device is designed with robust power management features including batch acquisition mode, brownout reset, and three separate power domains that can be individually clock-gated or switched off to optimize power consumption for battery-powered or energy-efficient devices.

Applications include low power consumer electronics, industrial control modules, sensor interfaces, automation systems, and temperature sensing devices. High performance ARM Cortex M4 DSP core with floating-point unit. 256kB FLASH and 64kB SRAM memory.

Wide operating voltage range from 1.71V to 3.6V. Multiple on-chip peripherals for advanced functionality. Robust industrial temperature range and power management. Supports rich set of serial interfaces. Compact LQFP-48 package.

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