MD82C50A-5 データシートの表示（PDF） - Intersil

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MD82C50A-5

CMOS Asynchronous Communications Element

Intersil 

82C50A

Timing Waveforms (Continued)

(1)

tAW

ADS

(2) tAS

A2, A1, A0

(4) tCS

CS2, CS1, CS0

CSOUT

VALID

VALID

(17)

tCSC†

(3) tAH

(5) tCH

(22) tWA†

(23)

tWCS†

(25)

tCSW†

(24)

tAW†

(12)

tDOW

(14)

WC

(13)

tWC

DOSTR/DOSTR

ACTIVE

DISTR/DISTR

DATA

D0-D7

† Applicable only when ADS is tied low.

(15) tDS

(16) tDH

VALID DATA

FIGURE 6. WRITE CYCLE

ADS

(2) tAS

A2, A1, A0

(4) tCS

CS2, CS1, CS0

CSOUT

DISTR/DISTR

(1)

tAW

VALID

VALID

(17)

tCSC†

(3) tAH

(5) tCH

(18) tRA†

(19)

tRCS†

(21)

tCSR†

(20)

tAR†

(6)

tDIW

ACTIVE

(8)

RC

(7)

tRC

DOSTR/DOSTR

DD/S

DATA

D0-D7

† Applicable only when ADS is tied low.

(9)

(9)

tDD

tDD

(10)

tDDD

(11) tHZ

VALID DATA

FIGURE 7. READ CYCLE

ACTIVE

OR

ACTIVE

ACTIVE

OR

ACTIVE

20

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