48 MHz Cortex-M0+ with 128 KB Flash – what it buys you
The S9KEAZ128AMLK is an NXP Kinetis KEA 32-bit MCU built around an ARM Cortex-M0+ core running at 48 MHz (cite:). That clock rate, combined with 128 KB of on-chip Flash (cite:) and 16 KB SRAM (cite:), gives you enough headroom for a sensor-fusion or CAN-bridge node without external memory.
Package and peripheral set – board integration notes
Housed in an 80-LQFP package with a 14x14 mm body (cite:), the 0.65 mm pitch is routable on a 2-layer board if the decoupling caps are placed near the supply pins. 71 I/O lines (cite:) are available, plus a 16-channel 12-bit ADC (cite:) for analog inputs.