It runs at 32 MHz and packs 16 KB of Flash program memory, 2 KB of SRAM, and 128 bytes of EEPROM — enough for a focused sensor node or a simple control loop that needs non-volatile storage without an external part. The 20-TSSOP package keeps the board footprint small, and the 16 general-purpose I/O lines handle local sensing and actuation.
Peripherals and connectivity
The 7-channel 12-bit ADC brings analog sensing in without an external converter.
Package and rework considerations
The 20-TSSOP body is 4.40 mm wide with a 0.65 mm pitch — a standard fine-pitch SOIC footprint that reflows cleanly with a hot-air station. The low thermal mass means it reaches reflow temperature quickly; just watch the profile to avoid lifting adjacent small passives.
