It packs 1 MB of Flash program memory, 256 KB of SRAM, and 6 KB of EEPROM on a single die, making it a fit for control-heavy and connectivity-oriented designs that need to run a real-time OS and handle multiple protocol stacks without external memory. The peripheral set includes Ethernet MAC+PHY (external PHY required), two CAN controllers, USB OTG, multiple UART/SSI/I²C interfaces, and a QEI for motor feedback. With 90 GPIOs and a 20-channel 12-bit ADC, this MCU targets industrial gateways, HMI panels, motor drives, and building-automation controllers.
120 MHz Cortex-M4F — what the clock buys you
The 120 MHz core with FPU and single-cycle multiply-accumulate handles PID loops, FFTs for vibration analysis, or protocol parsing for Ethernet/CAN gateways without a co-processor. The 256 KB SRAM supports multiple packet buffers and a modest RTOS heap.
The 128-TQFP package requires careful PCB layout for the Ethernet and USB high-speed differential pairs; keep the trace lengths matched and the PHY close to the MAC pins.
This part carries an EOL hot lifecycle status. While the manufacturer listing shows active status, the EOL hot flag signals that a last-time-buy window is open or imminent. For new designs, evaluate pin-compatible alternatives with higher memory or additional peripherals. For existing BOMs, secure your last-time-buy quantities now and plan a qualification cycle for the replacement.