The NXP LPC1518JBD64E is a 32-bit ARM Cortex-M3 microcontroller running at 72 MHz, with 128 KB of Flash program memory and 20 KB of SRAM. The internal oscillator and brown-out detect circuitry reduce external component count, and the 46 GPIOs give enough headroom for parallel sensor arrays or local HMI buttons.
128 KB Flash and 20 KB RAM — sizing the firmware budget
128 KB of Flash and 20 KB SRAM. The 4 KB EEPROM stores calibration constants and node ID without external EEPROM.
