HT82K68E-L/HT82K68A-L -- Multimedia Keyboard Encoder 8-Bit MCU

General Description

This device is an 8-bit high performance peripheral interface IC, designed for multiple I/O products and multimedia applications. It supports interface to a low speed PC with multimedia keyboard or wireless keyboard in Windows 95, Windows 98 or Windows 2000 environment. A HALT feature is included to reduce power consumption.

The mask version HT82K68A-L is fully pin and functionally compatible with the OTP version HT82K68E-L device.

Features

  • Operating voltage: 1.8V~5.5V
  • 34 bidirectional I/O line and 3 CMOS output
  • One 8-bit programmable timer counter with overflow interrupts
  • Crystal or RC oscillator
  • Watchdog Timer
  • 3Kx16 program EPROM
  • 160x8 data RAM
  • One external interrupt pin (shared with PC2)
  • 2.0V LVR by option (default disable)
  • HALT function and wake-up feature reduce power
    consumption
  • Six-level subroutine nesting
  • Bit manipulation instructions
  • 16-bit table read instructions
  • 63 powerful instructions
  • All instructions in 1 or 2 machine cycles
  • 20/28-pin SOP, 32-pin QFN and
    48-pin SSOP packages

Technical Document

Other Information