The MA82G5B16AS20 is an 8-bit microcontroller developed by Megawin Technology Corporation, Taiwan. It is packaged in a 20-lead 300mil width Small Outline Package (SOP-20-300) and is RoHS-compliant. It is equipped with an 8051-compatible microcontroller core, 8K bytes of Flash ROM, 256 bytes of RAM and a 2K-byte EEPROM memory. This microcontroller also supports multiple communication protocols such as I²C, SPI, and a single-wire UART, as well as basic analog functions. It is suitable for use in applications such as home and industrial automation, building control, gaming, consumer, and personal devices.