STMicroelectronics has launched the STM32L4 series of microcontrollers and is targeting the devices at energy conscious consumer, industrial, medical and metering applications.
The first two parts in the series – the STM32L476 and STM32L486 – feature the 80MHz ARM Cortex-M4 core with DSP and floating point unit (FPU). Combined with ST's ART Accelerator, which allows zero-wait execution from flash, the devices are said to offer a performance of up to 100DMIPS whilst consuming 100µA/MHz.
STM32L4 microcontrollers feature dynamic voltage scaling and seven power management modes, with sub-mode options. Meanwhile, ST's Batch Acquisition Mode allows data exchange with communication peripherals while in low-power mode. The parts have up to 1Mbyte of dual bank flash and 128kbyte of SRAM.
According to the company, the parts have scored 123 in the EEMBC ULPBench tests. "The ULPBench score of 123 is the best in the industry today and demonstrates that designers can now get higher performance and larger memory without trading power consumption," claimed Michel Buffa, general manager of ST's microcontroller division.
