The Z08617 Keyboard Controller is a member of the Z8 single-chip microcontroller family with 4 Kbytes of ROM. The device is housed in a 40-pin DIP package, and is manufactured in NMOS technology. The Z08617 microcontroller offers fast execution, efficient use of memory, sophisticated interrupt, input/output bitmanipulation capabilities, and easy hardware/software system expansion along with low cost and low power consumption.