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VT82C42

Keyboard Controller

VT82C42 Features

* ∗ Fully hardware implemented, 0.8µm CMOS Technology. ∗ Very high speed response of A20 GATE & reset. ∗ Support PS2 style mouse. ∗ Compatible with all major BIOS, including AWARD, PHOENIX and AMI. ∗ 40 pin PDIP and 44 pin PLCC packages. 3. Function Description: The internal timer counting is based

VT82C42 General Description

The internal timer counting is based on an 8Mhz clock input from X1, X2 ( or X2, with X1 connected to ground). After the deassertion of RESET#, the VT82C42 will drive high at pin P23 and pin P27. After 6 µs (6 x 8 clocks) of driving, the VT82C42 will check on pins T1 & P10; if both pins are low, th.

VT82C42 Datasheet (61.90 KB)

Preview of VT82C42 PDF

Datasheet Details

Part number:

VT82C42

Manufacturer:

VIA

File Size:

61.90 KB

Description:

Keyboard controller.
VT82C42 KEYBOARD CONTROLLER Preliminary Release DATE : November 22, 1995 VIA TECHNOLOGIES, INC. PRELIMINARY DOCUMENT RELEASE The material in this doc.

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VT82C42 Keyboard Controller VIA

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