72 MHz Cortex-M3 in a compact HVQFN
The NXP LPC1313FHN33/01551 is a 32-bit ARM Cortex-M3 microcontroller running at 72 MHz, with 32 KB of Flash and 8 KB of RAM. It carries 28 general-purpose I/O lines, an 8-channel 10-bit ADC, and standard serial interfaces including I²C, SPI, and UART. The part is specified over the industrial temperature range of -40°C to 85°C and operates from a 2V to 3.6V supply, making it a fit for control and sensor-interface tasks in factory-automation or outdoor telecom equipment where board space is tight — the 32-HVQFN exposed-pad package measures 7x7 mm.
Flash and RAM — sizing the firmware budget
32 KB of Flash is enough for a single-threaded control loop, a Modbus RTU stack, and a handful of lookup tables. The 8 KB RAM accommodates a moderate-size I/O buffer and a few frames of ADC data without external memory. If the application needs over-the-air updates or a larger protocol stack, the LPC13xx family offers higher-density Flash options, but for a fixed-function controller this part keeps the BOM lean.
The 2V to 3.6V supply covers both 3.3V and battery-backed 2V rails, simplifying power-tree design.
Active status — no end-of-life pressure
There is no last-time-buy deadline or NRND flag to track.