High-performance and ultra-low power MCUs for smart devices
The new MCUs combine 64Kbyte or 128Kbyte Flash memory with ST’s FlexPowerControl (FPC), and the 80MHz Arm Cortex-M4 core. The MCUs have high EEMBC benchmarks for efficiency and performance: 273 CoreMark for speedy execution, and 167 ULPMark-PP (Peripheral Profile) and 447 ULPMark-CP (Core Profile) for energy management.
Multiple reduced-power modes are available to maximize battery life. Analogue peripherals include two ADCs and a comparator to integrate more of the signal chain on-chip. Extra package options including 5mm x 5mm LQFP32 or 2.58mm x 3.07mm WLCSP36.
A choice of temperature qualifications are available; -40°C to 85°C or 125°C. Flash error correction (ECC) and parity-checking hardware are included for on-chip SRAM. A Quad-SPI interface allows high-performance off-chip memory extension.
The MCUs are supported by the STM32CubeL4 software package and STM32CubeMX initialization-code generator and power-consumption calculator. Two new Nucleo boards are also available, including the NUCLEO-L412RB-P containing a 64-pin STM32L412 with step-down converter, and the NUCLEO-L412KB with a 32-pin STM32L412.
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