STM32L433CCT3 Description

The STM32L433xx 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.

STM32L433CCT3 Features

Ultra-low-power with FlexPowerControl

– 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 (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

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

Performance benchmark

– 1.25 DMIPS/MHz (Drystone 2.1)

– 273.55 CoreMark? (3.42 CoreMark/MHz @

80 MHz)

Energy benchmark

– 347 ULPMark? CP score

– 121 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%)