ST STM32L4R9ZIT6

ARM® Cortex®-M4120 МГц2 МБ (2М x 8)

Overview

The STM32L4R5xx devices are an ultra-low-power microcontrollers family (STM32L4+ Series) based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 120 MHz. The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm® single-precision data-processing instructions and all the data types. The CortexM4 core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application's security.

Features

? Ultra-low-power with FlexPowerControl

– 1.71 V to 3.6 V power supply

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

– Batch acquisition mode (BAM)

– 305 nA in VBAT mode: supply for RTC and

32x32-bit backup registers

– 33 nA Shutdown mode (5 wakeup pins)

– 125 nA Standby mode (5 wakeup pins)

– 420 nA Standby mode with RTC

– 2.8 μA Stop 2 with RTC

– 110 μA/MHz Run mode (LDO mode)

– 43 μA/MHz Run mode (@ 3.3 V SMPS

mode)

– 5 μs wakeup from Stop mode

– Brownout reset (BOR) in all modes except

shutdown

– 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 120 MHz,

MPU, 150 DMIPS/1.25 DMIPS/MHz

(Dhrystone 2.1), and DSP instructions

? Performance benckmark

– 1.25 DMIPS/MHz (Drystone 2.1)

– 409.20 Coremark? (3.41 Coremark/MHz

@120 MHz)

? Energy benckmark

– 233 ULPMark?CP score

– 56.5 ULPMark?PP score

? Clock sources

– 4 to 48 MHz crystal oscillator

– 32 kHz crystal oscillator for RTC (LSE)

– Internal 16 MHz factory-trimmed RC (±1%)

– Internal low-power 32 kHz RC (±5%)

Applications

external Sigma Delta modulator