The W78E052DDG is a 32-bit microcontroller unit, manufactured by Nuvoton, with 8KB 256Byte FLASH ROM, and designed to work with the 51Series 40MHz DIP-40. This device is compliant with the RoHS environmental standard, for improved environmental sustainability. This microcontroller unit contains advanced peripherals and features to fulfill various needs, such as an advanced Timer and four 16-bit timers which are suitable for capacitive touch applications, and independent 9-bit ADC built-in for energy management. This device has a low power CMOS technology and is compatible with the widely used 8051 instruction set. With its rich feature set and compact form factor, this device is suitable for a variety of embedded applications.