MSM51V18160F Просмотр технического описания (PDF) - Oki Electric Industry
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MSM51V18160F Datasheet PDF : 15 Pages
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AC Characteristic (1/2)
(VCC = 3.3V ± 0.3V, Ta = 0°C to 70°C) Note1,2,3
Parameter
MSM51V18160 MSM51V18160 MSM51V18160
Symbol
F-50
F-60
F-70
Unit Note
Min. Max. Min. Max. Min. Max.
Random Read or Write Cycle Time tRC
90
¾
110
¾
130
¾ ns
Read Modify Write Cycle Time
tRWC 131
¾
155
¾
185
¾ ns
Fast Page Mode Cycle Time
tHPC
35
¾
40
¾
45
¾ ns
Fast Page Mode Read Modify
Write Cycle Time
tPRWC 76
¾
85
¾
100
¾ ns
Access Time from RAS
tRAC
¾
50
¾
60
¾
70 ns 4, 5, 6
Access Time from CAS
tCAC
¾
13
¾
15
¾
20 ns 4,5
Access Time from Column Address tAA
¾
25
¾
30
¾
35 ns 4,6
Access Time from CAS Precharge tCPA
¾
30
¾
35
¾
40 ns 4,12
Access Time from OE
tOEA
¾
13
¾
15
¾
20 ns 4
Output Low Impedance Time from
CAS
tCLZ
0
¾
0
¾
0
¾ ns 4
CAS to Data Output Buffer Turn-off
Delay Time
tOFF
0
13
0
15
0
20 ns 7
OE to Data Output Buffer Turn-off
Delay Time
Transition Time
Refresh Period
RAS Precharge Time
RAS Pulse Width
tOEZ
tT
tREF
tRP
tRAS
0
13
0
15
0
20 ns 7
3
50
3
50
3
50 ns 3
¾
16
¾
16
¾
16 ms
30
¾
40
¾
50
¾ ns
50 10,000 60 10,000 70 10,000 ns
RAS Pulse Width
(Fast Page Mode)
RAS Hold Time
RAS Hold Time referenced to OE
tRASP
tRSH
tROH
50 100,000 60 100,000 70 100,000 ns
13
¾
15
¾
20
¾ ns
13
¾
15
¾
20
¾ ns
CAS Precharge Time
(Fast Page Mode)
tCP
CAS Pulse Width
tCAS
CAS Hold Time
tCSH
CAS to RAS Precharge Time
tCRP
RAS Hold Time from CAS Precharge tRHCP
7
¾
10
¾
10
¾ ns 14
13 10,000 15 10,000 20 10,000 ns
50
¾
60
¾
70
¾ ns
5
¾
5
¾
5
¾ ns 12
30
¾
35
¾
40
¾ ns 12
No.
6/14
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