The MINI54FDE is an integrated circuit (IC) manufactured by Nuvoton. It is a low-power, high-performance 8-bit microcontrollers based on the 8051 core architecture. The IC is packaged as a TSSOP-20 RoHS, which is a 16-pin Dual Inline Package (DIP), allowing for easy placement on a circuit board. The IC has Flash ROM for storage, with 8K bytes of memory, and includes a variety of features, such as an ADC, PWM, and timer functions. The IC also has a wide operating voltage range of 2.2V to 5.5V. This part is RoHS compliant, meaning it complies with the European Union's Restriction of Hazardous Substances (RoHS) directive, which aims to reduce the use of hazardous materials in electronics and other products.