MSM54V32128-50 查看數據表（PDF） - Oki Electric Industry
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MSM54V32128-50 Datasheet PDF : 25 Pages
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¡ Semiconductor
MSM54V32126/8
AC Characteristics (1/2)
Parameter
Random Read or Write Cycle Time
Read Modify Write Cycle
Fast Page Mode Cycle Time
Fast Page Mode Read-Modify-Write Cycle Time
Access Time from RAS
Access Time from Column Address
Access Time from CAS
Access Time from CAS Precharge
Output Buffer Turn-off Delay Time from RAS
Output Buffer Turn-off Delay Time from CAS
Transition Time (Rise and Fall)
RAS Precharge Time
RAS Pulse Width
RAS Pulse Width (Hyper Page Mode Only)
RAS Hold Time
CAS Hold Time
CAS Pulse Width
RAS to CAS Delay Time
RAS to Column Address Delay Time
Column Address to RAS Lead Time
CAS to RAS Precharge Time
CAS Precharge Time (Hyper Page Mode)
Row Address Set-up Time
Row Address Hold Time
Column Address Set-up Time
Column Address Hold Time
Column Address Hold Time referenced to RAS
Read Command Set-up Time
Read Command Hold Time
Read Command Hold Time referenced to RAS
CAS "H" to RAS "H" Lead Time
RAS "H" to CAS "H" Lead Time
Data Output Hold after CAS Low
Write Command Set-up Time
Write Command Hold Time
(VCC = 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3
MSM54V32126/8 MSM54V32126/8
Symbol
-50
-60
Unit Note
Min. Max. Min. Max.
tRC
110
—
130
— ns
tRWC
145
—
170
— ns
tHPC
22
—
24
— ns
tPRWC
70
—
80
— ns
tRAC
—
50
—
60
ns 4, 9, 10
tAA
—
25
—
30 ns 4, 10
tCAC
—
15
—
18 ns 4, 9
tCPA
—
30
—
35 ns 4, 13
tREZ
3
20
3
20 ns 5
tCEZ
3
20
3
20 ns 5
tT
3
35
3
35 ns 3
tRP
54
—
64
— ns
tRAS
50
10k
60
10k ns
tRASP
50
100k
60
100k ns
tRSH
14
—
14
— ns
tCSH
50
—
60
— ns
tCAS
8
10k
9
10k ns
tRCD
20
35
20
42 ns 9
tRAD
15
25
15
30 ns 10
tRAL
24
—
28
— ns
tCRP
6
—
8
— ns 13
tCP
8
—
9
— ns 15
tASR
0
—
0
— ns
tRAH
7
—
9
— ns
tASC
0
—
0
— ns 12
tCAH
8
—
10
— ns 12
tAR
35
—
40
— ns
tRCS
0
—
0
— ns 12
tRCH
0
—
0
— ns 6, 12
tRRH
0
—
0
— ns 6
tCRL
0
—
0
— ns
tRCL
0
—
0
— ns
tDOH
3
—
3
— ns 11
tWCS
0
—
0
— ns 8, 12
tWCH
8
—
10
— ns 12
6/25
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