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SH68689 Datasheet Keyboard Controller

Manufacturer: Sino Wealth

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Datasheet Details

Part number SH68689
Manufacturer Sino Wealth
File Size 69.10 KB
Description Keyboard Controller
Download SH68689 Download (PDF)

General Description

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.

Overview

SH68689 Keyboard Controller.

Key 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 serial resistors.
  • Built-in RC oscillator with an external resistor.
  • Mask option for DATA/CLK and I/O Port driving capability.
  • Watch-dog timer.
  • Built-in power-on reset.

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