ACS8509 Semtech Corporation, ACS8509 Datasheet - Page 54

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

Figure 16 Write Access Timing in MOTOROLA Mode
Table 33 Write Access Timing in MOTOROLA Mode (for use with Figure 16)
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
pw1
pw2
su1
su2
su3
t
d2
d4
h1
h2
h3
h4
CSB
WRB
A
AD
RDY
(DTACK)
p
Setup A valid to CSB
Setup WRB valid to CSB
Setup AD valid before CSB
Delay CSB
Delay CSB
CSB Low time
RDY High time
Hold A valid after CSB
Hold WRB Low after CSB
Hold CSB Low after RDY
Hold AD valid after CSB
Time between consecutive accesses (CSB
X
X
X
Z
falling edge
rising edge
address
t
su1
t
to RDY High-Z
to RDY
su2
falling edge
rising edge
rising edge
falling edge
falling edge
rising edge
rising edge
pw1
rising edge
t
Parameter
d2
becomes 178 ns.
t
pw2
rising edge
t
pw1
FINAL
Page 54
to CSB
t
su3
data
falling edge
t
h3
)
t
h1
t
d4
485 ns
310 ns
320 ns
t
t
0 ns
0 ns
3 ns
3 ns
0 ns
0 ns
4 ns
MIN
h4
h2
-
-
(i)
X
X
X
Z
ACS8509 SETS
F8110D_008WriteAccMotor_01
TYP
-
-
-
-
-
-
-
-
-
-
-
-
DATASHEET
www.semtech.com
472 ns
13 ns
MAX
7 ns
-
-
-
-
-
-
-
-
-