STM32L431RCT6

• Low-Power 32-Bit ARM Cortex-M4 Microcontroller at Up to 80M Hz
• 256kB Flash Memory With 64kB RAM
• 52 I/O Lines, 16 ADC Channels and 11 PWM Channels
• CAN, I2C, IrDA, LIN, SPI and USART Interface Support
• Wide 1.62V to 3.6V Supply Range, -40°C to 85°C Operating
• 64-Pin LQFP Package, 1.6mm Height

The STMicroelectronics STM32L431RCT6 is a low-power 32-bit microcontroller based on an ARM Cortex-M4 core running at up to 80M Hz, with 256kB of on-chip flash memory and 64kB of RAM. It offers 52 I/O lines, 16 ADC channels, 11 PWM channels, three I2C and three SPI channels, four UART channels, and support for CAN, LIN, IrDA and USART interfaces, all from a 1.62V to 3.6V supply. The device is supplied in a 64-pin LQFP package with a 1.6mm height and is rated for -40°C to 85°C operation. Note that this listing is tagged RoHS non-compliant, which should be verified before use in a regulated build.

Low-power Cortex-M4 devices target products that must run for extended periods on a battery or harvested energy while still performing real computation between wake-ups, such as data logging, sensor fusion, and local signal processing. The broad interface set, including CAN and LIN alongside the usual serial ports, lets one part serve both industrial bus applications and simple sensor networks. Engineers building smart meters, portable medical and diagnostic devices, wireless sensor nodes, building automation controls, and handheld instruments use this class of microcontroller. The 64-pin LQFP provides enough I/O for a full application while remaining practical for two-layer and four-layer board designs.