The NXP LPC5528JEV98K is a 32-bit ARM Cortex-M33 single-core MCU from the LPC552x series, clocked at 150 MHz. It packs 512 KB of Flash and 256 KB of RAM, with a 1.8 V to 3.6 V supply range. The part includes a 10-channel 16-bit ADC, USB Full-Speed, and Flexcomm interfaces that can be configured as I²C, SPI, or UART.
150 MHz Cortex-M33 — processing headroom for real-time control
The 150 MHz core speed places this MCU in the mid-range performance tier for Cortex-M33 devices. It can handle sensor fusion loops, motor commutation, and protocol stacks without hitting the ceiling. The single-cycle multiply and hardware divide help keep interrupt latency predictable.
Memory sizing: 512 KB Flash, 256 KB RAM
The 512 KB Flash is sufficient for a moderate firmware image including a real-time OS, USB stack, and application code. The 256 KB RAM supports double-buffered data acquisition or a large communication buffer without external memory. Both are organized as 512K x 8 and 256K x 8, respectively.