It carries 8 KB of Flash program memory (8K x 8 plus 256 B) and 256 bytes of RAM (256 x 8), with 16 general-purpose I/O lines.
Industrial temperature range in a 4x4 mm QFN
The 24-VFQFN package with exposed pad (24-VQFN, 4x4 mm) keeps the footprint small while the pad helps pull heat into the PCB ground plane — useful if the MCU is running peripherals continuously at the upper end of the temp range.
