參數(shù)資料
型號(hào): MB81V4400C-60
廠商: Fujitsu Limited
英文描述: CMOS 1M x 4 Bit Fast Page Mode Dynamic RAM(CMOS 1M x 4位快速頁(yè)模式動(dòng)態(tài)RAM)
中文描述: 100萬的CMOS × 4位快速頁(yè)面模式動(dòng)態(tài)RAM的CMOS(100萬× 4位快速頁(yè)模式動(dòng)態(tài)內(nèi)存)
文件頁(yè)數(shù): 7/26頁(yè)
文件大?。?/td> 302K
代理商: MB81V4400C-60
7
MB81V4400C-60/MB81V4400C-70
I
AC CHARACTERISTICS
(At recommended operating conditions unless otherwise noted.) Notes 3, 4, 5
No.
Parameter
Notes
Symbol
MB81V4400C-60
Min.
110
150
MB81V4400C-70
Min.
125
170
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
Output Hold Time
Output Buffer Turn On Delay Time
t
OH
t
ON
0
0
0
0
ns
ns
9
Output Buffer Turn off Delay Time
t
OFF
15
15
ns
10
11
12
13
14
Transition Time
RAS Precharge Time
RAS Pulse Width
RAS Hold Time
CAS to RAS Precharge Time
t
T
t
RP
t
RAS
t
RSH
t
CRP
2
40
60
15
0
50
2
45
70
20
0
50
ns
ns
ns
ns
ns
100000
100000
15
RAS to CAS Delay Time
t
RCD
20
45
20
50
ns
16
17
CAS Pulse Width
CAS Hold Time
t
CAS
t
CSH
15
60
10000
20
70
10000
ns
ns
18
CAS Precharge Time (Normal)
t
CPN
10
10
ns
19
20
21
22
Row Address Set Up Time
Row Address Hold Time
Column Address Set Up Time
Column Address Hold Time
t
ASR
t
RAH
t
ASC
t
CAH
0
10
0
12
0
10
0
12
ns
ns
ns
ns
23
RAS to Column Address Delay Time
t
RAD
15
30
15
35
ns
24
25
26
Column Address to RAS Lead Time
Column Address to CAS Lead Time
Read Command Set Up Time
Read Command Hold Time
Referenced to RAS
Read Command Hold Time
Referenced to CAS
t
RAL
t
CAL
t
RCS
30
30
0
35
35
0
ns
ns
ns
27
t
RRH
0
0
ns
28
t
RCH
0
0
ns
29
Write Command Set Up Time
t
WCS
0
0
ns
30
31
32
33
Write Command Hold Time
WE Pulse Width
Write Command to RAS Lead Time
Write Command to CAS Lead Time
t
WCH
t
WP
t
RWL
t
CWL
10
10
15
15
10
10
18
18
ns
ns
ns
ns
6, 9
7, 9
8, 9
10
11, 12
19
13
14
14
15
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