MSM514265E(2000) Ver la hoja de datos (PDF) - Oki Electric Industry
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MSM514265E
(Rev.:2000)
(Rev.:2000)
Oki Electric Industry
MSM514265E Datasheet PDF : 15 Pages
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MSM514265E
AC Characteristic (1/2)
(VCC = 5V ± 10%, Ta = 0°C to 70°C) Note1,2,3
Parameter
Symbol
Random Read or Write Cycle Time
Read Modify Write Cycle Time
Fast Page Mode Cycle Time
Fast Page Mode Read Modify Write Cycle Time
Access Time from RAS
Access Time from CAS
Access Time from Column Address
Access Time from CAS Precharge
Access Time from OE
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
OE 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
RAS Hold Time referenced to OE
tRC
tRWC
tHPC
tHPRWC
tRAC
tCAC
tAA
tCPA
tOEA
tCLZ
tDOH
tCEZ
tREZ
tOEZ
tWEZ
tT
tREF
tRP
tRAS
tRASP
tRSH
tROH
CAS Precharge Time
(Fast Page Mode with EDO)
tCP
CAS Pulse Width
CAS Hold Time
CAS to RAS Precharge Time
RAS Hold Time from CAS Precharge
OE Hold Time from CAS (DQ Disable)
RAS to CAS Delay Time
RAS to Column Address Delay Time
Row Address Set-up Time
Row Address Hold Time
tCAS
tCSH
tCRP
tRHCP
tCHO
tRCD
tRAD
tASR
tRAH
MSM514265
E-60
Min.
104
135
25
68
0
5
0
Max.
60
15
30
35
15
15
0
15
0
15
0
15
1
50
8
40
60 10,000
60 100,000
10
10
MSM514265
E-70
Unit Note
Min. Max.
124
ns
160
ns
30
ns
78
ns
70 ns 4, 5, 6
20 ns 4,5
35 ns 4,6
40 ns 4,13
20 ns 4
0
ns 4
5
ns
0
20 ns 7,8
0
20 ns 7,8
0
20 ns 7
0
20 ns 7
1
50 ns 3
8 ms
50
ns
70 10,000 ns
70 100,000 ns
13
ns
13
ns
10
10
ns 15
10 10,000 10 10,000 ns
40
45
ns
5
5
ns 13
35
40
ns 13
5
5
ns
14
45
14
50 ns 5
12
30
12
35 ns 6
0
0
ns
10
10
ns
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