64.5 KB FRAM — the memory that writes like RAM and keeps like Flash
Its program memory is 64.5 KB of FRAM (ferroelectric RAM), a non-volatile technology that combines the fast write speed and low power of RAM with the data retention of Flash. This means you can treat the memory as unified code-and-data storage without worrying about erase cycles or wear-leveling — FRAM endurance is orders of magnitude higher than Flash, and writes happen at bus speed with no erase-before-write penalty. The part also carries 8 KB of SRAM for stack and scratchpad.
43 I/O, 12-bit ADC, and serial connectivity in a 48-LQFP
With 43 general-purpose I/O lines, an internal oscillator, and a 12-channel 12-bit SAR ADC, this MCU can handle sensor acquisition, control loops, and human-machine interface tasks without external peripherals. The 48-LQFP package (7x7 mm) is a surface-mount footprint that reflows easily and is widely second-sourced for assembly.