參數(shù)資料
型號: MB81V4405C-70
廠商: Fujitsu Limited
英文描述: CMOS 1M ×4 BIT Hyper Page Mode Dynamic RAM(CMOS 1M ×4 位超級頁面存取模式動態(tài)RAM)
中文描述: 的CMOS 100萬× 4位超頁模式動態(tài)RAM的CMOS(100萬× 4位超級頁面存取模式動態(tài)內存)
文件頁數(shù): 8/30頁
文件大?。?/td> 348K
代理商: MB81V4405C-70
8
MB81V4405C-60/MB81V4405C-70
I
AC CHARACTERISTICS
(At recommended operating conditions unless otherwise noted.)
Notes 3, 4, 5
MB81V4405C-70
Min.
119
156
(Continued)
No.
Parameter
Notes
Symbol
MB81V4405C-60
Min.
104
138
Unit
Max.
16.4
Max.
16.4
1
2
3
Time Between Refresh
Random Read/Write Cycle Time
Read-Modify-Write Cycle Time
t
REF
t
RC
t
RWC
ms
ns
ns
4
Access Time from RAS
t
RAC
60
70
ns
5
Access Time from CAS
t
CAC
15
20
ns
6
Column Address Access Time
t
AA
30
35
ns
7
8
9
Output Hold Time
Output Hold Time from CAS
Output Buffer Turn On Delay Time
Output Buffer Turn Off Delay
Time
Output Buffer Turn Off Delay Time from RAS
Output Buffer Turn Off Delay Time from WE
Transition Time
RAS Precharge Time
RAS Pulse Width
RAS Hold Time
t
OH
t
OHC
t
ON
5
5
0
5
5
0
ns
ns
ns
10
t
OFF
15
15
ns
11
12
13
14
15
16
t
OFR
t
WEZ
t
T
t
RP
t
RAS
t
RSH
1
40
60
15
15
15
50
1
45
70
20
15
15
50
ns
ns
ns
ns
ns
ns
100000
100000
17
CAS to RAS Precharge Time
t
CRP
0
0
ns
18
RAS to CAS Delay Time
t
RCD
14
45
14
50
ns
19
20
CAS Pulse Width
CAS Hold Time
t
CAS
t
CSH
10
40
10000
10
50
10000
ns
ns
21
CAS Precharge Time (Normal)
t
CPN
10
10
ns
22
23
24
25
Row Address Set Up Time
Row Address Hold Time
Column Address Set Up Time
Column Address Hold Time
RAS to Column Address Delay
Time
Column Address to RAS Lead Time
Column Address to CAS Lead Time
Read Command Set Up Time
Read Command Hold Time
Referenced to RAS
t
ASR
t
RAH
t
ASC
t
CAH
0
10
0
10
0
10
0
10
ns
ns
ns
ns
26
t
RAD
12
30
12
35
ns
27
28
29
t
RAL
t
CAL
t
RCS
30
23
0
35
28
0
ns
ns
ns
30
t
RRH
0
0
ns
6, 9
7, 9
8, 9
10
21
11, 12, 22
19
13
14
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