The MCUs are designed around an ARM Cortex-M4 core running at up to 100MHz, with ST’s power-saving technology reducing current consumption in RUN mode to as little as 112µA/MHz.
The STM32F413 and the crypto-enhanced STM32F423 offer up to 1.5Mbyte of flash and 320kbyte of what the company calls unusually dense’ SRAM. Along with a Serial Audio Interface, there are two 12bit D/A converters, up to 10 UARTs and three CAN 2.0B Active interfaces. The STM32F423 also has a True Random-Number Generator and an AES-256 cryptographic hardware accelerator.
Both devices feature a new RAM-access scheme that uses the instruction and data buses and the system bus to connect to separate RAM1 (256kbyte) and RAM2 (64kbyte) areas, minimising contention. An enhanced DMA Batch Acquisition Mode can take advantage of RAM1 and RAM2 to process code and data efficiently in sensor-hub applications.
The STM32F413 and STM32F423 are available now in seven package options, ranging from a 4 x 4mm WLCSP81 to a 144pin LQFP.