Dual-core MCU for asymmetric workloads
The M4 handles compute-intensive tasks like sensor fusion or audio processing at 100 MHz, while the M0+ manages housekeeping — I/O polling, communication stack, or low-power background loops — without loading the main core. 256 KB of Flash and 192 KB of SRAM give enough room for a moderate firmware image and data buffers; the 64-LQFP package breaks out 50 GPIOs. USB, SPI, I²C, and UART/USART interfaces cover the usual peripheral set for industrial and IoT edge nodes.
The Cortex-M4 core runs at 100 MHz. The 12-channel 12-bit ADC can be sequenced without stalling the main application.
USB and peripheral integration
USB connectivity is built in — no external PHY needed for full-speed device or host operation. The I²C, SPI, and UART/USART blocks share the peripheral bus; the DMA controller can move data between them without CPU intervention.
Supply range is 1.62 V to 3.6 V.