The chip has 14 pins, 4 pins of power supply, and 11 pins of EMP78S153.
A microcontroller is an integrated circuit chip. It is the use of very large scale integrated circuit technology to integrate the central processor CPU, random access memory RAM, read-only memory ROM, A variety of I\/O ports and interrupt systems, timers\/counters and other functions (may also include display driver circuit, pulse width modulation circuit, analog multiplexer, A\/D converter and other circuits) into a silicon chip A small and perfect microcomputer system, widely used in the field of industrial control. From the 1980s, from the then 4-bit, 8-bit single-chip microcomputer, developed to the present 300M high-speed single-chip microcomputer.