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參數(shù)資料
| 型號： | EDI88257LPA55CM |
| 元件分類： | SRAM |
| 英文描述： | 256K X 8 STANDARD SRAM, 55 ns, CDIP32 |
| 封裝： | 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-32 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 121K |
| 代理商： | EDI88257LPA55CM |
2
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
EDI88257CA
ABSOLUTE MAXIMUM RATINGS
Parameter
Unit
Voltage on any pin relative to Vss
-0.5 to 7.0
V
Operating Temperature T
A
(Ambient)
Industrial
-40 to +85
°
C
°
C
°
C
W
Military
-55 to +125
Storage Temperature, Ceramic
-65 to +150
Power Dissipation
1.5
Output Current
20
mA
°
C
Junction Temperature, T
J
175
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
Symbol
V
CC
V
SS
V
IH
V
IL
Min
4.5
0
2.2
-0.3
Typ
5.0
0
—
—
Max
5.5
0
Vcc +0.5
+0.8
Unit
V
V
V
V
Parameter
Symbol
Condition
Max
Unit
Address Lines
C
I
V
IN
= Vcc or Vss, f = 1.0MHz
12
pF
Input/Output Lines
C
O
V
OUT
= Vcc or Vss, f = 1.0MHz
14
pF
These parameters are sampled, not 100% tested.
CAPACITANCE
(T
A
= +25
°
C)
NOTE:
Stress greater than those listed under "Absolute Maximum Ratings" may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions greater than those indi-
cated in the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect reliability.
Parameter
Symbol
Conditions
Units
Min
-10
-10
Typ
—
—
Max
+10
+10
Input Leakage Current
Output Leakage Current
I
LI
I
LO
V
IN
= 0V to V
CC
V
I/O
= 0V to V
CC
μ
A
μ
A
mA
Operating Power Supply Current
I
CC1
WE, CS = V
IL
, I
I/O
= 0mA, Min Cycle
(20-25ns)
—
225
(35-55ns)
—
200
mA
Standby (TTL) Power Supply Current
I
CC2
CS
≥
V
IH
, V
IN
≤
V
IL
, V
IN
≥
V
IH
—
60
mA
CS
≥
V
CC
-0.2V
V
IN
≥
Vcc -0.2V or V
IN
≤
0.2V
CA
—
—
25
mA
Full Standby Power Supply Current
I
CC3
LPA
—
—
2.4
—
—
—
20
0.4
—
mA
V
V
Output Low Voltage
Output High Voltage
NOTE: DC test conditions: V
IL
= 0.3V, V
IH
= Vcc -0.3V
V
OL
V
OH
I
OL
= 8.0mA
I
OH
= -4.0mA
DC CHARACTERISTICS
(V
CC
= 5V, T
A
= +25
°
C)
TRUTH TABLE
OE
X
H
L
X
CS
H
L
L
L
WE
X
H
H
L
Mode
Standby
Output Deselect
Read
Write
Output
High Z
High Z
Data Out
Data In
Power
Icc
2
, Icc
3
Icc
1
Icc
1
Icc
1
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