ACS8509 Semtech Corporation, ACS8509 Datasheet - Page 58

• Manufacturer Part Number: ACS8509
• Description: Synchronous Equipment Timing Source for Sonet or SDH Network Elements
• Manufacturer: Semtech Corporation

Figure 20 Write Access Timing in MULTIPLEXED Mode
Table 37 Write Access Timing in MULTIPLEXED Mode (For use with Figure 20)
Note: (i) Timing with RDY. If RDY not used, t
Revision 2.00/January 2006 © Semtech Corp.
ADVANCED COMMUNICATIONS
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
pw1
pw2
pw3
su1
su2
su3
d2
d3
d5
h1
h2
h3
h4
p1
p2
Set up AD address valid to ALE
Set up CSB
Set up AD data valid to WRB
Delay CSB
Delay WRB
Delay CSB
WRB Low time
RDY Low time
ALE High time
Hold AD address valid after ALE
Hold CSB Low after WRB
Hold WRB Low after RDY
AD data hold valid after WRB
Time between ALE
Time between consecutive accesses (WRB
ALE
CSB
WRB
RDB
AD
RDY
falling edge
rising edge
falling edge
falling edge
falling edge
Z
to RDY high-Z
t
to RDY active
pw3
t
to RDY
to WRB
su1
address
rising edge
rising edge
pw1
t
falling edge
h1
and WRB
falling edge
rising edge
t
rising edge
Parameter
d2
becomes 180 ns.
falling edge
falling edge
t
p1
t
su2
X
falling edge
rising edge
t
d3
FINAL
Page 58
t
to ALE
pw1
t
pw2
data
t
su3
rising edge
t
h3
)
t
h4
t
h2
487 ns
310 ns
320 ns
t
d5
2 ns
0 ns
3 ns
2 ns
3 ns
0 ns
0 ns
4 ns
0 ns
MIN
-
-
-
(i)
X
Z
ACS8509 SETS
F8110D_012WriteAccMultiplex_01
TYP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DATASHEET
www.semtech.com
472 ns
13 ns
15 ns
MAX
9 ns
-
-
-
-
-
-
-
-
-
-
-