ACS8509 Semtech Corporation, ACS8509 Datasheet - Page 60

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

Table 38 Read Access Timing in SERIAL Mode (For use with Figure 21)
Figure 22 Write Access Timing in SERIAL Mode
Table 39 Write Access Timing in SERIAL Mode (For use with Figure 22)
Revision 2.00/January 2006 © Semtech Corp.
ADVANCED COMMUNICATIONS
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
pw1
pw2
pw1
pw2
su1
su2
su1
su2
t
t
d1
d2
h1
h2
h1
h2
p
p
CSB
ALE=SCLK
A(0)=SDI
AD(0)=SDO
Setup SDI valid to SCLK
Setup CSB
Delay SCLK
Delay CSB
SCLK Low time
CLKE = 0
CLKE = 1
SCLK High time
CLKE = 0
CLKE = 1
Hold SDI valid after SCLK
Hold CSB Low after SCLK
Hold CSB Low after SCLK
Time between consecutive accesses (CSB
Setup SDI valid to SCLK
Setup CSB
SCLK Low time
SCLK High time
Hold SDI valid after SCLK
Hold CSB Low after SCLK
Time between consecutive accesses (CSB
t
su1
rising edge
falling edge
falling edge
rising edge
t
Output not driven, pulled low by internal resistor
su2
R/W
_
to SDO high-Z
A0 A1 A2 A3 A4 A5 A6
to SCLK
to SCLK
(SCLK
t
h1
rising edge
rising edge
rising edge
rising edge
falling edge
rising edge
rising edge
falling edge
rising edge
rising edge
Parameter
Parameter
t
pw1
, for CLKE = 0
, for CLKE = 1
for CLKE = 1) to SDO valid
rising edge
rising edge
t
pw2
FINAL
Page 60
to CSB
to CSB
D0 D1 D2 D3 D4 D5 D6 D7
falling edge
falling edge
)
)
160 ns
250 ns
500 ns
250 ns
500 ns
170 ns
160 ns
160 ns
180 ns
180 ns
170 ns
160 ns
0 ns
5 ns
0 ns
5 ns
MIN
MIN
-
-
F8110D 014W it A S i l 02
ACS8509 SETS
TYP
TYP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
t
h2
DATASHEET
www.semtech.com
17 ns
10 ns
MAX
MAX
-
-
-
-
-
-
-
-
-
-
-
-
-
-