edi88257ca White Electronic Designs Corporation, edi88257ca Datasheet - Page 2

• Manufacturer Part Number: edi88257ca
• Description: 256kx8 Monolithic Sram
• Manufacturer: White Electronic Designs Corporation

NOTE:
Stress greater than those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and func tion al operation
of the device at these or any other conditions greater than those in di cat ed in the
operational sections of this spec i fi ca tion is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability.
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
May 2000
Rev. 2
Parameter
Voltage on any pin relative to Vss
Operating Temperature T
Storage Temperature, Ceramic
Power Dissipation
Output Current
Junction Temperature, T
Parameter
Input Leakage Current
Output Leakage Current
Operating Power Supply Current
Standby (TTL) Power Supply Current
Full Standby Power Supply Current
Output Low Voltage
Output High Voltage
Industrial
Military
AC TEST CONDITIONS
Figure 1
ABSOLUTE MAXIMUM RATINGS
Q
255Ω
White Electronic Designs
J
A
(Ambient)
Vcc
480Ω
30pF
Figure 2
-55 to +125
-65 to +150
-0.5 to 7.0
-40 to +85
Q
Symbol
Value
175
I
I
I
V
V
1.5
I
CC1
CC2
CC3
20
I
LO
255Ω
LI
OL
OH
DC CHARACTERISTICS
Conditions
V
V
WE#, CS# = V
CS# ≥ V
CS# ≥ V
V
I
I
OL
OH
IN
I/O
IN
= 8.0mA
= -4.0mA
= 0V to V
≥ Vcc -0.2V or V
= 0V to V
Vcc
Unit
mA
°C
°C
°C
°C
W
V
V
IH
CC
CC
480Ω
5pF
, V
-0.2V
= 5V, T
CC
IN
CC
IL
≤ V
, I
I/O
2
IL
A
, V
IN
= 0mA, Min Cycle
= +25°C
These parameters are sampled, not 100% tested.
≤ 0.2V
IN
Parameter
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
Parameter
Address Lines
Data Lines
OE#
RECOMMENDED OPERATING CONDITIONS
≥ V
X
H
X
L
IH
White Electronic Designs Corporation • [phone] •www.whiteedc.com
CS#
NOTE: For t
H
L
L
L
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Levels
Output Load
Symbol
WE#
(20-25ns)
(35-55ns)
C
C
H
H
X
L
EHQZ
O
I
Symbol
LP
C
CAPACITANCE
TRUTH TABLE
V
V
V
V
, t
CC
SS
IH
IL
GHQZ
Output Deselect
V
V
OUT
IN
Standby
and t
Mode
Read
Write
= Vcc or Vss, f = 1.0MHz
= Vcc or Vss, f = 1.0MHz
Min
Min
-0.3
-10
-10
2.4
WLQZ
4.5
2.2
—
—
—
—
—
—
0
Condition
, CL = 5pF Figure 2
EDI88257CA
Typ
Typ
5.0
—
—
—
—
—
—
—
—
Data Out
0
Output
Data In
High Z
High Z
V
5ns
1.5V
Figure 1
SS
V
to 3.0V
CC
Max
+0.8
Max
+10
+10
225
200
0.4
5.5
60
25
20
—
0
+0.5
Max
12
14
I
CC2
Power
I
I
I
CC1
CC1
CC1
, I
Units
Unit
mA
mA
mA
mA
mA
μA
μA
CC3
V
V
V
V
Unit
V
V
pF
pF