ACS8520 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'ACS8520' PDF : 150 Pages View PDF
ADVANCED COMMUNICATIONS
FINAL
Figure 14 Write Access Timing in MOTOROLA Mode
ACS8520 SETS
DATASHEET
CSB
WRB
A
tsu2
X
tsu1
X address
AD
X
td2
RDY
Z
(DTACK)
tpw1
th2
th1
tpw2
tsu3
data
th3
th4
td4
X
X
X
Z
F8110D_008WriteAccMotor_01
Table 22 Write Access Timing in MOTOROLA Mode (for use with Figure 14)
Symbol
Parameter
MIN
TYP
MAX
tsu1
Setup A valid to CSBfalling edge
4 ns
-
-
tsu2
Setup WRB valid to CSBfalling edge
0 ns
-
-
tsu3
Setup AD valid before CSBrising edge
8 ns
-
-
td2
Delay CSBfalling edge to RDYrising edge
-
-
13 ns
td4
Delay CSBrising edge to RDY High-Z
-
-
7 ns
tpw1
CSB Low time
25 ns
-
180 ns
tpw2
RDY High time
12 ns
-
166 ns
th1
Hold A valid after CSBrising edge
8 ns
-
-
th2
Hold WRB Low after CSBrising edge
0 ns
-
-
th3
Hold CSB Low after RDYfalling edge
0 ns
-
-
th4
Hold AD valid after CSBrising edge
9 ns
-
-
tp
Time between consecutive accesses (CSBrising edge to CSBfalling edge)
160 ns
-
-
Revision 3.02/October 2005 © Semtech Corp.
Page 45
www.semtech.com
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