ACS8520T Semtech, ACS8520T Datasheet - Page 51

• Manufacturer Part Number: ACS8520T
• Description: Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
• Manufacturer: Semtech

Table 27 Read Access Timing in SERIAL Mode (For use with Figure 19) (cont...)
Figure 20 Write Access Timing in SERIAL Mode
Table 28 Write Access Timing in SERIAL Mode (For use with Figure 20)
Revision 3.02/October 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
pw1
pw2
pw1
pw2
su1
su2
t
t
h1
h2
h1
h2
p
p
CSB
ALE=SCLK
A(0)=SDI
AD(0)=SDO
SCLK Low time
SCLK High time
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
falling edge
t
su2
Output not driven, pulled low by internal resistor
R/W
_
to SCLK
A0 A1 A2 A3 A4 A5 A6
t
rising edge
h1
rising edge
rising edge
falling edge
rising edge
rising edge
rising edge
Parameter
Parameter
t
pw1
, for CLKE = 0
, for CLKE = 1
rising edge
rising edge
t
pw2
FINAL
Page 51
to CSB
to CSB
falling edge
falling edge
D0 D1 D2 D3 D4 D5 D6 D7
)
)
22 ns
22 ns
10 ns
14 ns
22 ns
22 ns
10 ns
6 ns
5 ns
4 ns
6 ns
5 ns
MIN
MIN
F8110D_014WriteAccSerial_02
ACS8520 SETS
TYP
TYP
-
-
-
-
-
-
-
-
-
-
-
-
t
h2
DATASHEET
www.semtech.com
MAX
MAX
-
-
-
-
-
-
-
-
-
-
-
-