New STM32 series with ARM® Cortex®-M4 core and innovative ultra-low-power technologies sets industry’s highest EEMBC™ ULPBench® efficiency score
New Delhi, February 26, 2015 – STMicroelectronics, a global semiconductor leader serving customers across the spectrum of electronics applications, has combined its ultra low-power microcontroller technology withARM® Cortex®-M4 know-how to create the STM32L4 series for next-generation energy-conscious consumer, industrial, medical, and metering applications. The first two microcontrollers in the series,the STM32L476 and STM32L486, feature the 80MHz ARM Cortex-M4 core with DSP and floating-point unit (FPU). With the added advantage of the ST ART Accelerator™, which allows zero-wait execution from Flash, the devices achieve up to 100 DMIPS at just 100µA/MHz active power consumption. Up to 1MB of dual-bank Flash supports sophisticated applications and read-while-write capability in addition to 128KB of SRAM. STM32L4 microcontrollers leverage the full richness of ST’s low-power technologies, including 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 thatcompare 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.
The overall low power consumption, high performance and DSP capability of the Cortex-M4 core, smart analog features, and extensive digital connectivity of the new STM32L4 series make these devices ideal for smart connected and Internet-of-Things (IoT) applications, as well asa wide variety of industrial, medical, and consumer products.
STM32L4 devices are sampling now to lead customers, and general release is scheduled for Q2 2015. The STM32L476is priced from $3.40 in the LQFP64 package, for orders of 10,000 pieces.
