參數(shù)資料
型號: MB8117405B-50
廠商: Fujitsu Limited
英文描述: 4 M ×4 BITS Fast Page Mode Dynamic RAM(CMOS 4 M ×4 位快速頁面存取模式RAM)
中文描述: 4米× 4位快速頁面模式動態(tài)RAM(的CMOS 4米× 4位快速頁面存取模式的RAM)
文件頁數(shù): 9/31頁
文件大?。?/td> 588K
代理商: MB8117405B-50
9
MB8117405B-50/-60
I
AC CHARACTERISTICS
(At recommended operating conditions unless otherwise noted.) Notes 3, 4, 5
(Continued)
No.
Parameter
Notes
Symbol
MB8117405B-50
MB8117405B-60
Unit
Min.
Max.
Min.
Max.
1
Time Between Refresh
t
REF
32.8
32.8
ms
2
Random Read/Write Cycle Time
t
RC
84
104
ns
3
Read-Modify-Write Cycle Time
t
RWC
114
138
ns
4
Access Time from RAS
*6,9
t
RAC
50
60
ns
5
Access Time from CAS
*7,9
t
CAC
15
15
ns
6
Column Address Access Time
*8,9
t
AA
25
30
ns
7
Output Hold Time
t
OH
3
3
ns
8
Output Hold Time from CAS
t
OHC
5
5
ns
9
Output Buffer Turn On Delay Time
t
ON
0
0
ns
10
Output Buffer Turn Off Delay Time
*10
t
OFF
13
15
ns
11
Output Buffer Turn Off Delay Time
from RAS
*10
t
OFR
13
15
ns
12
Output Buffer Turn Off Delay Time
from WE
*10
t
WEZ
13
15
ns
13
Transition Time
t
T
1
50
1
50
ns
14
RAS Precharge Time
t
RP
30
40
ns
15
RAS Pulse Width
t
RAS
50
100000
60
100000
ns
16
RAS Hold Time
t
RSH
13
15
ns
17
CAS to RAS Precharge Time
*21
t
CRP
5
5
ns
18
RAS to CAS Delay Time
*11,12,22
t
RCD
11
35
14
45
ns
19
CAS Pulse Width
t
CAS
7
10
ns
20
CAS Hold Time
t
CSH
38
40
ns
21
CAS Precharge Time (Normal)
*19
t
CPN
7
10
ns
22
Row Address Set Up Time
t
ASR
0
0
ns
23
Row Address Hold Time
t
RAH
7
10
ns
24
Column Address Set Up Time
t
ASC
0
0
ns
25
Column Address Hold Time
t
CAH
7
10
ns
26
Column Address Hold Time from RAS
t
AR
18
24
ns
27
RAS to Column Address Delay Time
*13
t
RAD
9
25
12
30
ns
28
Column Address to RAS Lead Time
t
RAL
25
30
ns
29
Column Address to CAS Lead Time
t
CAL
18
23
ns
30
Read Command Set Up Time
t
RCS
0
0
ns
31
Read Command Hold Time
Referenced to RAS
*14
t
RRH
0
0
ns
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