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SH68689 - Keyboard Controller

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.

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.

📥 Download Datasheet

Datasheet Details

Part number SH68689
Manufacturer Sino Wealth
File Size 69.10 KB
Description Keyboard Controller
Datasheet download datasheet SH68689 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SH68689 Keyboard Controller 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 „ Built-in low voltage reset „ CMOS technology for low power consumption „ Available in CHIP FORM 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.