Preliminary
Features
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Multimedia Keyboard Encoder Body
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HT82K68A
Operating voltage: 2.2V~5.5V
34(42-pin)/32(40-pin) bidirectional I/O lines
One 8-bit programmable timer counter with
overflow interrupts
Crystal or RC oscillator
Watchdog Timer
3K麓16 program ROM
160麓8 data RAM
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
40-pin DIP/42-pin DIP/DICE form package
General Description
The HT82K68A 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 en-
vironment. A HALT feature is included to re-
duce power consumption.
1
April 20, 2000