This is a low-cost ARM microcontroller
Datasheet: https://www.puyasemi.com/download_path/%E6%95%B0%E6%8D%AE%E6%89%8B%E5%86%8C/MCU%20%E5%BE%AE%E5%A4%84%E7%90%86%E5%99%A8/PY32F002A_Datasheet_V0.2.pdf
Pinout:
Package drawing (page 45 of datasheet):
