ACS8530 datasheet(49/152 Pages) SEMTECH

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ADVANCED COMMUNICATIONS

FINAL

DATASHEET

Revision 3.02/November 2005 © Semtech Corp.

Page 49

www.semtech.com

ACS8530 SETS

Figure 18 Write Access Timing in MULTIPLEXED Mode

Table 25 Write Access Timing in MULTIPLEXED Mode (For use with Figure 18)

Symbol

Parameter

MIN

TYP

MAX

tsu1

Set up AD address valid to ALEfalling edge

5 ns

tsu2

Set up CSBfalling edge to WRBfalling edge

0 ns

tsu3

Set up AD data valid to WRBrising edge

5 ns

td2

Delay CSBfalling edge to RDY active

13 ns

td3

Delay WRBfalling edge to RDYfalling edge

15 ns

td5

Delay CSBrising edge to RDY high-Z

9 ns

tpw1

WRB Low time

30 ns

188 ns

tpw2

RDY Low time

15 ns

173 ns

tpw3

ALE High time

5 ns

th1

Hold AD address valid after ALEfalling edge

9 ns

th2

Hold CSB Low after WRBrising edge

0 ns

th3

Hold WRB Low after RDYrising edge

0 ns

th4

AD data hold valid after WRBrising edge

7 ns

tp1

Time between ALEfalling edge and WRBfalling edge

0 ns

tp2

Time between consecutive accesses (WRBrising edge to ALErising edge)

1600 ns

F8110D_012WriteAccMultiplex_01

CSB

ALE

data

address

WRB

RDB

tpw1

th2

tpw3

tsu1

th1

tsu2

tp1

td3

tsu3

th4

tpw2

th3

RDY

td2

td5

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