SH68689 Datasheet (Sino Wealth) - Keyboard Controller

SH68689, Keyboard Controller

SH68689 is a single chip micro-controller for keyboard applications.

It incorporates a 6502 8-bit CPU core, 8K bytes of ROM and 160 bytes of RAM used as working RAM and stack area.

It also includes 29 programmable bi-directional I/O pins and one 8-bit pre-loadable base timer.

Additionally, it includ

SH68689 Features

* Built-in 6502 8-bit CPU

* 2MHz CPU operation frequency

* 8K bytes of ROM

* 160 bytes of SRAM

* One 8-bit programmable base timer with 1 - 256 µsec interval

* 29 programmable bi-directional I/O pins

* 3 LED direct sink pins with internal seria