XR88C92CV View Datasheet(PDF) - Exar Corporation

Part Name

Description

Manufacturer

XR88C92CV

DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

Exar Corporation 

XR88C92/192

A3-A0

-IOR/

-IOW

-CS

D7-D0

(Read)

D7-D0

(Write)

TAS

TRWS

TAH

TRWH

TCSL

TDD

Valid Data

TDS

Valid Data

TCSH

TDF

TDH

Read/Write Cycle Timing

Figure 3: Bus Timing (Read/Write cycle)

IP6-IP0

T9s

T9h

-IOR

Figure 4: Input Port Timing

XR92-IP

-IOW

OP7-OP0

Old Data

T10d

New Data

XR92-OP

Figure 5: Output Port Timing

Rev. 1.33

26

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