Rev.1 Page 13
EDO Page Mode Cycle
EDO Page Mode Read Modify Write Cycle
Parameter Symbol
AD404M42V
Unit Notes
-5 -6
Min Max Min Max
EDO page mode cycle time t
PC
20 - 25 - ns
EDO page mode CAS precharge time t
CP
10 - 10 - ns
EDO page mode RAS pulse width t
RASP
50
10
5
60
10
5
ns 20
Access time from CAS precharge t
CPA
- 30 - 35 ns 10, 14
RAS hold time from CAS precharge t
CPRH
30 - 35 - ns
OE high hold time from CAS high t
OEHC
5 - 5 - ns
OE high pulse width t
OEP
10 - 10 - ns
Data output hold time after CAS low t
COH
5 - 5 - ns
Output disable delay from WE t
WHZ
3 10 3 10 ns
WE pulse width for output disable when
CAS high
t
WPZ
7 - 7 - ns
Parameter Symbol
AD404M42V
Unit Notes
-5 -6
Min Max Min Max
EDO page mode read- modify- write cycle
CAS precharge to WE delay time
t
CPW
45 - 55 - ns 10
EDO page mode read- modify- write cycle
time
t
PRWC
56 - 68 - ns
