The 4554 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 4500 series using a simple, high-speed instruction set. The computer is equipped with main Clock selection function, four 8-bit Timers (each Timer has one or two reload registers), interrupts, and LCD control circuit. The various microcomputers in the 4554 Group include variations of the built-in memory size as shown in the table below. By Renesas Technology
4554 's Packages4554 's pdf datasheet

4554 Pinout, Pinouts
4554 pinout,Pin out
This is one package pinout of 4554,If you need more pinouts please download 4554's pdf datasheet.

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