參數(shù)資料
型號(hào): MB814260-60
廠商: Fujitsu Limited
英文描述: CMOS 256K ×16 BIT FAST PAGE MODE DYNAMIC RAM(CMOS 256K ×16 位快速頁面存取模式動(dòng)態(tài)RAM)
中文描述: 的CMOS 256K × 16位快速頁面模式的動(dòng)態(tài)隨機(jī)存儲(chǔ)器(的CMOS 256K × 16位快速頁面存取模式動(dòng)態(tài)內(nèi)存)
文件頁數(shù): 8/26頁
文件大?。?/td> 517K
代理商: MB814260-60
8
MB814260-60/MB814260-70
I
AC CHARACTERISTICS
(At recommended operating conditions unless otherwise noted.) Notes 3, 4, 5
(Continued)
No.
Parameter
Notes
Symbol
MB814260-60
Min.
110
150
MB814260-70
Min.
125
170
Unit
Max.
8.2
Max.
8.2
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
20
20
ns
6
Column Address Access Time
t
AA
30
35
ns
7
8
Output Hold Time
Output Buffer Turn On Delay Time
Output Buffer Turn Off Delay
Time
Transition Time
RAS Precharge Time
RAS Pulse Width
RAS Hold Time
CAS to RAS Precharge Time
t
OH
t
ON
0
0
0
0
ns
ns
9
t
OFF
15
15
ns
10
11
12
13
14
t
T
t
RP
t
RAS
t
RSH
t
CRP
2
40
60
20
0
50
2
45
70
20
0
50
ns
ns
ns
ns
ns
100000
100000
15
RAS to CAS Delay Time
t
RCD
20
40
20
50
ns
16
17
CAS Pulse Width
CAS Hold Time
t
CAS
t
CSH
20
60
10000
20
70
10000
ns
ns
18
CAS Precharge Time (Normal)
t
CPN
10
10
ns
19
20
21
22
Row Address Setup Time
Row Address Hold Time
Column Address Setup 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 Setup Time
Read Command Hold Time
Referenced to RAS
Read Command Hold Time
Referenced to CAS
t
ASR
t
RAH
t
ASC
t
CAH
0
10
0
12
0
10
0
12
ns
ns
ns
ns
23
t
RAD
15
30
15
35
ns
24
25
26
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 Setup Time
t
WCS
0
0
ns
30
31
32
Write Command Hold Time
WE Pulse Width
Write Command to RAS Lead Time
t
WCH
t
WP
t
RWL
10
10
15
10
10
20
ns
ns
ns
6, 9
7, 9
8, 9
10
11, 12
19
13
14
14
15
相關(guān)PDF資料
PDF描述
MB814260-70 CMOS 256K ×16 BIT FAST PAGE MODE DYNAMIC RAM(CMOS 256K ×16 位快速頁面存取模式動(dòng)態(tài)RAM)
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