MSC23CV23257D-XXBS4 Datasheet, PDF (7/9 Pages) OKI electronic componets – 2,097,152-word x 32-bit DYNAMIC RAM MODULE : FAST PAGE MODE TYPE WITH EDO

Semiconductor
MSC23CV23257D
AC Characteristics (1/2)
Parameter
Random Read or Write Cycle Time
Fast Page Mode Cycle Time
Access Time from /RAS
Access Time from /CAS
Access Time from Column Address
Access Time from /CAS Precharge
Output Low Impedance Time from /CAS
Data Output Hold After /CAS Low
/CAS to Data Output Buffer Turn-off Delay Time
/RAS to Data Output Buffer Turn-off Delay Time
/WE to Data Output Buffer Turn-off Delay Time
Transition Time
Refresh Period
/RAS Precharge Time
/RAS Pulse Width
/RAS Pulse Width (Fast Page Mode with EDO)
/RAS Hold Time
/CAS Precharge Time (Fast Page Mode with EDO)
/CAS Pulse Width
/CAS Hold Time
/CAS to /RAS Precharge Time
/RAS Hold Time from /CAS Precharge
/RAS to /CAS Delay Time
/RAS to Column Address Delay Time
Row Address Set-up Time
Row Address Hold Time
Column Address Set-up Time
Column Address Hold Time
Column Address to /RAS Lead Time
Read Command Set-up Time
Read Command Hold Time
Read Command Hold Time referenced to /RAS
(VCC = 3.3V ± 0.3V, Ta = 0°C to +70°C ) Note: 1, 2, 3, 10, 11
Symbol
tRC
tHPC
tRAC
tCAC
tAA
tCPA
tCLZ
tDOH
tCEZ
tREZ
tW EZ
tT
tREF
tRP
tRAS
tRASP
tRSH
tCP
tCAS
tCSH
tCRP
tRHCP
tRCD
tRAD
tASR
tRAH
tASC
tCAH
tRAL
tRCS
tRCH
tRRH
-60
Min.
104
25
-
-
-
-
0
5
0
0
0
1
-
40
60
60
10
10
10
40
5
35
14
12
0
10
0
10
30
0
0
0
Max.
-
-
60
15
30
35
-
-
15
15
15
50
32
-
10K
100K
-
-
10K
-
-
-
45
30
-
-
-
-
-
-
-
-
-70
Min.
124
30
-
-
-
-
0
5
0
0
0
1
-
50
70
70
13
10
13
45
5
40
14
12
0
10
0
13
35
0
0
0
Max.
-
-
70
20
35
40
-
-
20
20
20
50
32
-
10K
100K
-
-
10K
-
-
-
50
35
-
-
-
-
-
-
-
-
Unit Note
ns
ns
ns 4, 5, 6
ns 4, 5
ns 4, 6
ns 4
ns 4
ns
ns 7, 8
ns 7, 8
ns 7
ns 3
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns 5
ns 6
ns
ns
ns
ns
ns
ns
ns 9
ns 9