
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