XR88C681CJ View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR88C681CJ

CMOS Dual Channel UART (DUART)

Exar Corporation 

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XR88C681

A0 - A3

tAS

-CS

tCS

-RD

D0 - D7

(Read)

FLOAT

-WR

D0 - D7

(Write)

tAH

tRW

tDD

NOT

VALID

tCH

tRWD

tDF

VALID

FLOAT

tRWD

tDS

tDH

VALID

Figure 52. XR88C681 Read and Write Cycle Timing

Rev. 2.11

92

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