The 100-LQFP package (14x14 mm) with 84 accessible I/O leaves room for a segment-LCD glass, keypad matrix, and a few external sensors on a two-layer board.
48 MHz is the sweet spot for driving a 4x32 segment LCD while polling a few I²C sensors and updating a PWM fan output. The DMA engine (listed among the peripherals) can refresh the LCD frame buffer without CPU intervention, leaving the M0+ free for communications and decision logic. If your application needs USB or a CAN interface, step up to the Kinetis K series — this part covers I²C, SPI, UART, and LIN.
No last-time-buy pressure.
