ht82k68e-l Holtek Semiconductor Inc., ht82k68e-l Datasheet
ht82k68e-l
Manufacturer Part Number
ht82k68e-l
Description
Ht82k68e-l/ht82k68a-l -- Multimedia Keyboard Encoder 8-bit Mcu
Manufacturer
Holtek Semiconductor Inc.
Datasheet
1.HT82K68E-L.pdf
(41 pages)
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Technical Document
Features
General Description
This device is an 8-bit high performance peripheral in-
terface IC, designed for multiple I/O products and multi-
media applications. It supports interface to a low speed
PC with multimedia keyboard or wireless keyboard in
Windows 95, Windows 98 or Windows 2000 environ-
ment. A HALT feature is included to reduce power con-
sumption.
Rev. 1.10
Tools Information
FAQs
Application Note
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
3K 16 program EPROM
160 8 data RAM
One external interrupt pin (shared with PC2)
2.0V LVR by option (default disable)
Multimedia Keyboard Encoder 8-Bit MCU
1
The mask version HT82K68A-L is fully pin and functionally
compatible with the OTP version HT82K68E-L device.
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
HT82K68E-L/HT82K68A-L
April 2, 2008
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