Application of Programmable Logic-function Device GAL in the Design of Digital Electronic Clock

The GAL is new-type logic-function device, which was developed in the eighties of the 20th century. According to demands, users can devise the logical function and program device. The digital electronic clock is typical digital logical circuit, which is designed by programmable logical array GAL and it meets some particular demands of the users. The design pattern is free and the output pattern is flexible.