STM32L451REY6TR Description

The STM32L451xx devices are 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 that 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.

STM32L451REY6TR Features

Ultra-low-power with FlexPowerControl

? 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 ?A Stop 2 mode, 2.40 ?A with RTC

? 84 ?A/MHz run mode

? Batch acquisition mode (BAM)

? 4 ?s wakeup from Stop mode

? Brown out reset (BOR)

? Interconnect matrix

Core: Arm? 32-bit Cortex?-M4 CPU with FPU,

Adaptive real-time accelerator (ART

Accelerator?) allowing 0-wait-state execution

from Flash memory, frequency up to 80 MHz,

MPU, 100DMIPS, and DSP instructions