ARM Cortex-M4 MCU deliver 100 DMIPS at 100µA/MHz score highest EEMBC

The new 80MHz ARM Cortex-M4 MCUs from STMicroelectronics part-numbered as STM32L476 and STM32L486, achieve up to 100 DMIPS at only 100µA/MHz active power consumption. Both the MCUs feature up to 1MB of dual-bank Flash supports sophisticated applications and read-while-write capability in addition to 128KB of SRAM. STM32L4 microcontrollers offer dynamic voltage scaling to balance power consumption with processing demand, smart architecture with FlexPowerControl, and seven power-management modes with sub-mode options. These include Stop, Standby, and Shutdown with current as low as 30nA. ST’s Batch Acquisition Mode (BAM) allows efficient data exchange with communication peripherals while in low-power mode. The new devices have scored 123 in the standardized EEMBC ULPBench tests that compare the efficiency of ultra-low-power microcontrollers. “The STM32L4’s 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,” said Michel Buffa, General Manager, Microcontroller Division, STMicroelectronics. High processing performance, DSP and smart analog features, and range of digital connectivity makes STM32L4 series a good choice for smart connected and Internet-of-Things (IoT) applications, and also industrial, medical, and consumer products. STM32L4 devices are...