The PD753108 is one of the 75XL Series 4-bit single-chip microcontroller chips and has a data processing capability comparable to that of an 8-bit microcontroller. The existing 75X Series containing an LCD controller/driver supplies an 80-pin package. The PD753108 supplies a 64-pin package (12 x 12 mm), which is suitable for small-scale systems. It features expanded CPU functions and can provide high-speed operation at a low supply voltage of 1.8 V compared with the existing PD75308B. For detailed function descriptions, refer to the following user's manual. Be sure to read the document before designing.