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參數(shù)資料
| 型號(hào)： | MB98B7517 |
| 廠商： | Fujitsu Limited |
| 英文描述： | Dynamic Random Access Memory Card(256M 動(dòng)態(tài)RAM) |
| 中文描述： | 動(dòng)態(tài)隨機(jī)存取記憶卡（256M動(dòng)態(tài)內(nèi)存） |
| 文件頁數(shù)： | 7/26頁 |
| 文件大小： | 418K |
| 代理商： | MB98B7517 |
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7
MB98B7515/7516/7517/7518
4. Hidden Refresh Mode
X: “H” or “L”.
I
ABSOLUTE MAXIMUM RATINGS (See WARNING)
(Voltage is with reference to the GND (ground))
Value
MB98B7516
MB98B7517
–0.5 to +6.0
0 to V
CC
0 to V
CC
–30 to +70
12
16
50
WARNING:
Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
I
RECOMMENDED OPERATING CONDITIONS
(Voltage is with reference to the GND (ground))
WARNING:
Recommended operating conditions are normal operating ranges for the semiconductor device. All
the device’s electrical characteristics are warranted when operated within these ranges.
Always use semiconductor devices within the recommended operating conditions. Operation outside
these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representative beforehand.
RAS
→
H
0
RAS
1
RAS
2
RAS
3
CAS
0, 1
CAS
2, 3
Active memory
DQ
0
to DQ
17
DQ
18
to DQ
35
H
L
H
→
H
H
H
L
H
D
0
to D
3
, M
0
,
1
I/O data
High-Z
H
L
H
→
H
→
X
H
L
H
D
8
to D
11
, M
4
,
5
I/O data
High-Z
H
H
L
H
→
H
H
L
D
4
to D
7
, M
2
,
3
High-Z
I/O data
H
→
→
H
H
H
L
H
L
D
12
to D
15
, M
6
,
7
High-Z
I/O data
H
L
H
→
→
X
H
L
L
L
D
0
to D
7
, M
0
to M
3
I/O data
H
L
H
L
X
→
→
X
X
Prohibited operation
H
L
H
→
H
L
L
L
D
8
to D
15
, M
4
to M
7
I/O data
X
H
L
H
L
X
X
Prohibited operation
Parameter
Symbol
Unit
MB98B7515
MB98B7518
Supply Voltage
Input Voltage
Output Voltage
Storage Temperature
Power Dissipation
Output Current (D.C.)
V
V
V
T
P
L
CC
V
V
V
°
C
W
mA
IN
OUT
stg
D
8
24
OUT
Parameter
Symbol
Min.
Typ.
Max.
Unit
Ambient
Operating
Temperature
Supply Voltage
V
CC
4.75
5.0
5.25
V
0
°
C to +55
°
C
V
SS
0
0
0
“High” Level Input Voltage (All Input Pins)
V
IH
2.4
—
V
CC
V
“Low” Level Input Voltage (All Input Pins)
V
IL
0
—
0.8
V
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