It runs at 30 MHz, carries 16 KB of Flash and 4 KB of RAM, and operates from 1.8 V to 3.6 V.
30 MHz Cortex-M0+ — enough for the loop
30 MHz on a Cortex-M0+ is a deliberate fit for low-to-mid throughput tasks: reading sensors over I²C, driving a PWM output for a small brushed DC motor, or polling a serial encoder.
Memory budget — what fits in 16 KB Flash and 4 KB RAM
16 KB of Flash is sized for a single firmware image with a modest bootloader and a few hundred lines of control logic. The 4 KB RAM handles a couple of UART buffers and a small data table. If the application needs field-upgradeable firmware or larger data logging, step up to a higher-density LPC81xM sibling — the pin-compatible package options let you scale without a board spin.