MSM514400E Просмотр технического описания (PDF) - Oki Electric Industry
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MSM514400E Datasheet PDF : 14 Pages
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PEDD514400EL-01
MSM514400E/EL
AC Characteristic (1/2)
Parameter
Symbol
Random Read or Write Cycle Time
Read Modify Write Cycle Time
Fast Page Mode Cycle Time
tRC
tRWC
tPC
Fast Page Mode Read Modify Write
Cycle Time
tPRWC
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
tRAC
tCAC
tAA
tCPA
tOEA
tCLZ
CAS to Data Output Buffer Turn-off
Delay Time
tOFF
OE to Data Output Buffer Turn-off Delay
Time
tOEZ
Transition Time
Refresh Period
Refresh Period (L-version)
RAS Precharge Time
RAS Pulse Width
RAS Pulse Width (Fast Page Mode)
RAS Hold Time
RAS Hold Time referenced to OE
tT
tREF
tREF
tRP
tRAS
tRASP
tRSH
tROH
CAS Precharge Time
(Fast Page Mode)
tCP
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
tCAS
tCSH
tCRP
tRHCP
tRCD
tRAD
tASR
tRAH
(Vcc = 5V ± 10%, Ta = 0°C to 70°C) Note1,2,3,11,12
MSM514400
E/EL-60
Min. Max.
MSM514400
E/EL-70
Min. Max.
unit Note
110
130
ns
155
185
ns
40
45
ns
85
100
ns
60
70
ns 4, 5, 6
15
20
ns 4, 5
30
35
ns 4, 6
35
40
ns
4
15
20
ns
4
0
0
ns
4
0
15
0
20
ns
7
0
15
0
20
ns
7
3
50
3
50
ns
3
16
16
ns
128
128
ms
40
50
ns
60 10,000 70 10,000 ns
60 100,000 70 100,000 ns
15
20
ns
15
20
ns
10
10
ns
15
10,000
20
10,000 ns
60
70
ns
5
5
ns
35
40
ns
20
45
20
50
ns
5
15
30
15
35
ns
6
0
0
ns
10
10
ns
6/14
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