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)

Current page: 1 of 41
Download datasheet (310Kb)

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

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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