Preliminary
Features
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Multimedia Keyboard Encoder OTP
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HT82K68E
Operating voltage: 2.8V~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´16 OTP EPROM
160´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
40/42-pin DIP package
General Description
The HT82K68E 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.
The program and option PROM can be electri-
cally programmed making the HT82K68E suit-
able for use in product development.
1
August 8, 2000
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
