Read- Modify- Write Cycle
AD404M42V
Unit
Notes
-5
-6
Min
108
Max
Min
133
Max
Parameter
Symbol
tRWC
Read-modify- write cycle time
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
RAS to WE delay time
tRWD
tCWD
tAWD
tOEH
64
26
39
8
77
32
47
10
18
18
18
CAS to WE dealy time
Column address to WE delay time
OE hold time from WE
Refresh Cycle
AD404M42V
-5
-6
Min
Max
Min
Max
Parameter
Symbol
tCSR
Unit
ns
Notes
CAS setup time (CBR refresh)
5
-
-
-
-
5
-
CAS hold time (CBR refresh)
RAS precharge to CAS hold time
RAS pulse width (self refresh)
tCHR
tRPC
8
5
10
5
-
-
-
ns
ns
10
7
tRASS
100
90
-50
0
100
ms
ns
ns
ns
ns
RAS precharge time (self refresh)
CAS hold time (CBR self refresh)
WE setup time
tRPS
tCHS
tWSR
tWHR
-
-
-
-
110
-50
0
-
-
-
-
WE hold time
10
10
Rev.1
Page12
ETC [ ETC ]
