STM32L452REI6 Description

The STM32L452xx 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.

High-speed memories (Flash memory up to 512 Kbyte, 160 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages), and a wide variety of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix are all included in the STM32L452xx devices.

STM32L452REI6 Features

• 1.71 V to 3.6 V power supply

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

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

• 22 nA Shutdown mode (5 wakeup pins)

• 106 nA Standby mode (5 wakeup pins)

• 375 nA Standby mode with RTC

• 2.05 μA Stop 2 mode, 2.40 μA with RTC

• 84 μA/MHz run mode (LDO Mode)

• 36 μA/MHz run mode (@3.3 V SMPS Mode)

• Batch acquisition mode (BAM)

• 4 μs wakeup from Stop mode

• Brown out reset (BOR)

• Interconnect matrix

• 1x SAI (serial audio interface)

• 4x I2C FM+(1 Mbit/s), SMBus/PMBus

• 3x USARTs (ISO 7816, LIN, IrDA, modem)

• 1x UART (LIN, IrDA, modem)

• 1x LPUART (Stop 2 wake-up)

• 3x SPIs (and 1x Quad SPI)

STM32L452REI6 Applications

• Power Management

• Consumer Electronics

• Portable Devices

• Industrial