UR5HC418 Просмотр технического описания (PDF) - Semtech Corporation

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производитель

UR5HC418

DeskCoder™ AT / PS/2 - Compatible Keyboard Encoder

Semtech Corporation 

FUNCTIONAL DIAGRAM

Data Buffer

ORDERING CODE

Package options

40-pin, Plastic DIP

44-pin, Plastic PLCC

44-pin, Plastic QFP

Pitch in mm’s

2.54

1.27

0.8

TA = -40°C to +85°C

UR5HC418-P

UR5HC418-FN

UR5HC418-FB

NL/CL/SL

3

Status LEDs

EKC1

Interrupt Control

KC

PC

Communication

KD

Channel

EKC

EKD

8042 Emulation

(External Keyboard)

Communication

Channel

Row Data Inputs

Column Select

Ouputs

Keyboard Encoder

16-Bit Timer

R0-R7

8

C0-C15

16

Mode Control

KT

DRV

Copyright ©1997-2001 Semtech Corporation

2

DOC5-418-DS-109

www.semtech.com

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