EDI2DL32256V
ABSOLUTE MAXIMUM RATINGS*
RECOMMENDED OPERATING CONDITIONS
Voltage on Vcc Supply Relative to Vss
VIN
-0.5V to 4.6V
-0.5V to Vcc+0.5V
-55°C to +110°C
+110°C
Description
Symbol
VIH
Min
2
Max
Vcc+0.3
0.7
Unit
V
Input High Voltage
Input Low Voltage
Supply Voltage
Storage Temperature
VIL
-0.3
3.135
V
Junction Temperature
Power Dissipation
Vcc
3.465
V
3 Watts
Short Circuit Output Current (per I/O)
20 mA
CAPACITANCE
(f = 1MHz, VIN = VCC or VSS)
* Stresses 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
CA
Max
Unit
Address Lines
Data Lines
TBD
TBD
TBD
pF
pF
pF
CD/Q
CC
Control Lines
PARTIAL TRUTH TABLE
Function
BWE\
BE0\
BE1\
BE2\
BE\3
READ
H
L
L
X
L
L
X
H
L
X
H
L
X
H
L
WRITE one Byte (DQ0-7)
WRITE all Bytes
DC ELECTRICAL CHARACTERISTICS
(f = 1MHz, VIN = VCC or Vss)
Parameter
Symbol
Conditions
Min
Max
Units
Device Selected; all inputs ≤ VIL or ≥ VIH;
cycle time ≥ tKC MIN; VCC = MAX; outputs open
Power Supply Current: Operating
ICC1
850
mA
Device deselected; VCC = MAX; all inputs ≤
VSS +0.2 or ≥ VCC -0.2; all inputs static;
CLK frequency = 0
CMOS Standby
ISB2
20
mA
Device deselected; all inputs ≤ VIL or ≥ VIH;
all inputs static; VCC = MAX; CLK frequency = 0
TTL Standby
TTL Standby
ISB3
ISB4
40
40
mA
mA
Device deselected; all inputs ≤ VIL or ≥ VIH;
VCC = MAX; CLK cycle time ≥ tCK MIN
Input Leakage Current
Output Leakage Current
Output High Voltage
Output Low Voltage
ILI
ILO
VOH
VOL
0V < VIN < VCC
-2
-2
2
2
µA
µA
V
Output(s) disabled, 0V ≤ VOUT ≤ VCC
IOH = -2.0mA
2.4
IOL = 2.0mA
0.7
V
AC TEST CIRCUIT
AC TEST CONDITIONS
Parameter
I/O
Unit
V
Output
ZZ00==505Ω0Ω
Input Pulse Levels
VSS to 2.5
1.8
Input Rise and Fall Times (max)
Input and Output Timing Levels
Output Load
ns
1.25
V
50Ω
See figure, at left
1 V
Vt = 1.525V
AC Output Load Equivalent
3
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com
November 2000, Rev. 1
ECO #13417
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
