The NXP LPC8N04FHI24Z is a 32-bit ARM Cortex-M0+ microcontroller in the LPC8Nxx series, packing 32 KB of Flash, 8 KB of RAM, and a separate 4 KB EEPROM block into a 24-HVQFN package. It runs at 8 MHz from an internal oscillator and operates on a single supply from 1.72 V to 3.6 V, making it a fit for low-power sensor nodes, simple human-machine interfaces, and battery-operated control modules where the integrated EEPROM saves an external memory IC.
Memory split and why it matters
32 KB of Flash covers small firmware stacks like bootloaders or state machines. The 8 KB of RAM is tight for heavy buffering — plan around it. The 4 KB of on-chip EEPROM is the standout: it stores calibration tables, configuration profiles, or fault logs without needing an external serial EEPROM, saving board space and a chip-select line.
The 8 MHz clock is deliberate: it keeps dynamic current low and simplifies the power budget.
Connectivity and I/O
I²C and SPI are the only serial interfaces — no UART, CAN, or USB on this die. That limits the part to local bus communication with peripherals like temperature sensors, ADCs, or small displays.
NXP lists the LPC8N04FHI24Z as Active. That means the factory line is running and new BOMs can specify it without an immediate end-of-life risk. ROHS3 compliant per the listing.