MD51V64405-60 데이터 시트보기 (PDF) - Oki Electric Industry
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MD51V64405-60
Oki Electric Industry
MD51V64405-60 Datasheet PDF : 15 Pages
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¡ Semiconductor
MD51V64405
AC Characteristics (1/2)
Parameter
Symbol
Random Read or Write Cycle Time
tRC
Read Modify Write Cycle Time
tRWC
Fast Page Mode Cycle Time
tHPC
Fast Page Mode Read Modify Write
Cycle Time
tHPRWC
Access Time from RAS
tRAC
Access Time from CAS
tCAC
Access Time from Column Address
tAA
Access Time from CAS Precharge
tCPA
Access Time from OE
tOEA
Output Low Impedance Time from CAS
tCLZ
Data Output Hold After CAS Low
tDOH
CAS to Data Output Buffer Turn-off Delay Time tCEZ
RAS to Data Output Buffer Turn-off Delay Time tREZ
OE to Data Output Buffer Turn-off Delay Time tOEZ
WE to Data Output Buffer Turn-off Delay Time tWEZ
Transition Time
tT
Refresh Period
tREF
RAS Precharge Time
tRP
RAS Pulse Width
tRAS
RAS Pulse Width (Fast Page Mode with EDO) tRASP
RAS Hold Time
tRSH
RAS Hold Time referenced to OE
tROH
CAS Precharge Time (Fast Page Mode with EDO) tCP
CAS Pulse Width
tCAS
CAS Hold Time
tCSH
CAS to RAS Precharge Time
tCRP
RAS Hold Time from CAS Precharge
tRHCP
OE Hold Time from CAS (DQ Disable)
tCHO
RAS to CAS Delay Time
tRCD
RAS to Column Address Delay Time
tRAD
Row Address Set-up Time
tASR
Row Address Hold Time
tRAH
Column Address Set-up Time
tASC
Column Address Hold Time
tCAH
Column Address to RAS Lead Time
tRAL
(VCC = 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3
MD51V64405
-50
MD51V64405
-60
Unit Note
Min.
Max.
Min.
Max.
84
—
104
—
ns
110
—
135
—
ns
20
—
25
—
ns
58
—
68
—
ns
—
50
—
60
ns 4, 5, 6
—
13
—
15
ns 4, 5
—
25
—
30
ns 4, 6
—
30
—
35
ns 4
—
13
—
15
ns 4
0
—
0
—
ns 4
5
—
5
—
ns
0
13
0
15
ns 7, 8
0
13
0
15
ns 7, 8
0
13
0
15
ns 7
0
13
0
15
ns 7
1
50
1
50
ns 3
—
64
—
64
ms
30
—
40
—
ns
50
10,000
60
10,000 ns
50
100,000
60
100,000 ns
7
—
10
—
ns
7
—
10
—
ns
7
—
10
—
ns
7
10,000
10
10,000 ns
35
—
40
—
ns
5
—
5
—
ns
30
—
35
—
ns
5
—
5
—
ns
11
37
14
45
ns 5
9
25
12
30
ns 6
0
—
0
—
ns
7
—
10
—
ns
0
—
0
—
ns
7
—
10
—
ns
25
—
30
—
ns
6/15
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