STM32L431RBI6 Description

The STM32L431xx devices are ultra-low-power microcontrollers built on the powerful 32-bit RISC Arm? Cortex?-M4 core that operates at up to 80 MHz. A floating point unit (FPU) single precision is a characteristic of the Cortex-M4 core that supports all Arm? single-precision data-processing instructions and data formats. Additionally, it incorporates a memory protection unit (MPU) that improves program security together with the whole range of DSP instructions.

The STM32L431xx devices include a wide range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix. They also include high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages), and two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.

STM32L431RBI6 Features

• 1.71 V to 3.6 V power supply

• -40 °C to 85/105/125 °C temperature range

• 200 nA in VBAT mode: supply for RTC and 32x32-bit backup registers

• 8 nA Shutdown mode (5 wakeup pins)

• 28 nA Standby mode (5 wakeup pins)

• 280 nA Standby mode with RTC

• 1.0 μA Stop 2 mode, 1.28 μA with RTC

• 84 μA/MHz run mode

• Batch acquisition mode (BAM)

• 4 μs wakeup from Stop mode

• Brown out reset (BOR)

• Interconnect matrix

STM32L431RBI6 Applications

• Power Management

• Consumer Electronics

• Portable Devices

• Industrial