Don Dingee
Moderator
A new ARM Cortex-M4 microcontroller family from STMicro combines performance with ultra-low power. The STM32L4 family features an 80 MHz core with DSP and FPU, plus an added zero-wait flash access technology called the ST ART Accelerator.
EEMBC ULPbench is an industry-standard suite of tests for measuring microcontroller efficiency. Currently, the STM32L476 holds the highest score submitted, 123.5. This is in part due to several ultra-low power modes in the STM32L4; for example, a mode with 32 KB of RAM and the RTC running consuming only 660nA. Wake up time is 5 usec.
The SMT32L4 family supports up to 1MB of flash and 128 KB of RAM. It also features USB 2.0 OTG, SPI, I2C, USART, CAN, three 12-bit A/Ds with hardware oversampling, op amps and comparators. AES encryption is available on some versions. The STM32L476 is in a LQFP64 package, priced at $3.40 in 10K volumes.
Press release:
STMicroelectronics Shatters Performance Limitations for Ultra Low-Power Applications with New STM32L4 Microcontrollers
EEMBC ULPbench is an industry-standard suite of tests for measuring microcontroller efficiency. Currently, the STM32L476 holds the highest score submitted, 123.5. This is in part due to several ultra-low power modes in the STM32L4; for example, a mode with 32 KB of RAM and the RTC running consuming only 660nA. Wake up time is 5 usec.
The SMT32L4 family supports up to 1MB of flash and 128 KB of RAM. It also features USB 2.0 OTG, SPI, I2C, USART, CAN, three 12-bit A/Ds with hardware oversampling, op amps and comparators. AES encryption is available on some versions. The STM32L476 is in a LQFP64 package, priced at $3.40 in 10K volumes.
Press release:
STMicroelectronics Shatters Performance Limitations for Ultra Low-Power Applications with New STM32L4 Microcontrollers