The LPC822M101JDH20J runs an ARM Cortex-M0+ core at 30 MHz, which is the rated speed for deterministic interrupt response and peripheral handling. For a sensor or relay controller, that throughput keeps the I²C or SPI bus fed without stalling the main loop. The 16 KB Flash and 4 KB SRAM fit small firmware images — think a Modbus RTU slave, a PWM fan controller, or a basic HMI keypad scanner.
Package and footprint — 20-TSSOP
Housed in a 20-TSSOP (4.40 mm width) with 16 accessible I/O, this MCU fits on a compact PCB for space-constrained designs. The surface-mount package is standard for pick-and-place assembly; no special handling required beyond typical reflow profiles.