参数资料
型号: ACS8509
元件分类: 数字传输电路
英文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PQFP100
封装: LQFP-100
文件页数: 54/68页
文件大小: 703K
代理商: ACS8509
ADVANCED COMMUNICATIONS
FINAL
DATASHEET
Revision 2.00/January 2006 Semtech Corp.
Page 58
www.semtech.com
ACS8509 SETS
Figure 20 Write Access Timing in MULTIPLEXED Mode
Note: (i) Timing with RDY. If RDY not used, tpw1 becomes 180 ns.
Table 37 Write Access Timing in MULTIPLEXED Mode (For use with Figure 20)
Symbol
Parameter
MIN
TYP
MAX
tsu1
Set up AD address valid to ALEfalling edge
2 ns
-
tsu2
Set up CSBfalling edge to WRBfalling edge
0 ns
-
tsu3
Set up AD data valid to WRBrising edge
3 ns
-
td2
Delay CSBfalling edge to RDY active
-
13 ns
td3
Delay WRBfalling edge to RDYfalling edge
-
15 ns
td5
Delay CSBrising edge to RDY high-Z
-
9 ns
tpw1
WRB Low time
487 ns(i)
--
tpw2
RDY Low time
310 ns
-
472 ns
tpw3
ALE High time
2 ns
-
th1
Hold AD address valid after ALEfalling edge
3 ns
-
th2
Hold CSB Low after WRBrising edge
0 ns
-
th3
Hold WRB Low after RDYrising edge
0 ns
-
th4
AD data hold valid after WRBrising edge
4 ns
-
tp1
Time between ALEfalling edge and WRBfalling edge
0 ns
-
tp2
Time between consecutive accesses (WRBrising edge to ALErising edge)320 ns
-
F8110D_012WriteAccMultiplex_01
CSB
ALE
Z
data
address
X
WRB
RDB
tpw1
th2
tpw3
tsu1
th1
tsu2
tp1
td3
tsu3
th4
tpw2
th3
AD
RDY
td2
td5
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相关代理商/技术参数
参数描述
ACS8509T 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510 制造商:Semtech Corporation 功能描述:Timing Source 100-Pin LQFP
ACS8510_03 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510REV2.1 制造商:Semtech Corporation 功能描述:Timing Source 100-Pin LQFP
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