NSC DM54LS55W14B 2-wide, 4-input and-or-invert gate Datasheet

DM54LS55/DM74LS55
2-Wide, 4-Input AND-OR-INVERT Gate
General Description
This device contains a combination of AND-OR-INVERT
functions. The internal gates are configured as two,
four-input AND gates with their outputs connected to a
two-input NOR gate.
Connection Diagram
Dual-In-Line Package
TL/F/10174 – 1
Order Number DM54LS55J, DM54LS55W, DM74LS55M or DM74LS55N
See NS Package Number J14A, M14A, N14A or W14B
Function Table
Y e ABCD a EFGH
Inputs
A
H
B
H
X
X
Output
C
H
D
H
E
X
F
X
G
X
H
X
X
X
H
H
H
H
All Other Combinations
Y
L
L
H
H e High Logic Level
L e Low Logic Level
X e Either Low or High Logic Level
C1995 National Semiconductor Corporation
TL/F/10174
RRD-B30M105/Printed in U. S. A.
DM54LS55/DM74LS55 2-Wide, 4-Input AND-OR-INVERT Gate
April 1992
Absolute Maximum Ratings (Note)
Note: The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
b 55§ C to a 125§ C
DM54LS
DM74LS
0§ C to a 70§ C
b 65§ C to a 150§ C
Storage Temperature Range
Recommended Operating Conditions
Symbol
DM54LS55
Parameter
VCC
Supply Voltage
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
IOH
High Level Output Current
IOL
Low Level Output Current
TA
Free Air Operating Temperature
DM74LS55
Units
Min
Nom
Max
Min
Nom
Max
4.5
5
5.5
4.75
5
5.25
V
0.7
0.8
V
b 0.4
b 0.4
mA
8
mA
70
§C
2
2
V
4
b 55
125
0
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
VI
Input Clamp Voltage
VCC e Min, II e b18 mA
VOH
High Level Output Voltage
VCC e Min, IOH e Max,
VIL e Max
VOL
Low Level Output Voltage
Typ
(Note 1)
Min
DM54
2.5
DM74
2.7
Max
Units
b 1.5
V
V
VCC e Min, IOL e Max,
VIH e Min
DM54
0.4
DM74
0.5
IOL e 4 mA, VCC e Min
DM74
0.4
V
II
Input Current @ Max
Input Voltage
VCC e Max, VI e 7V
VI e 10V (DM54)
IIH
High Level Input Current
VCC e Max, VI e 2.7V
20
mA
IIL
Low Level Input Current
VCC e Max, VI e 0.4V
b 0.4
mA
IOS
Short Circuit
Output Current
VCC e Max
(Note 2)
ICCH
Supply Current with Outputs High
VCC e Max, VIN e GND
0.8
mA
ICCL
Supply Current with Outputs Low
VCC e Max, VIN e Open
1.3
mA
0.1
mA
DM54
b 20
b 100
DM74
b 20
b 100
Note 1: All typicals are at VCC e 5V, TA e 25§ C.
Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics VCC e a 5.0V, TA e a 25§ C
Symbol
CL e 15 pF, RL e 2 kX
Parameter
Min
tPLH
tPHL
Propagation Delay Time
15
15
2
Units
Max
ns
mA
3
Physical Dimensions inches (millimeters)
14-Lead Ceramic Dual-In-Line Package (J)
Order Number DM54LS55J
NS Package Number J14A
4
Physical Dimensions inches (millimeters) (Continued)
14-Lead Small Outline Molded Package (M)
Order Number DM74LS55M
NS Package Number M14A
14-Lead Molded Dual-In-Line Package (N)
Order Number DM74LS55N
NS Package Number N14A
5
DM54LS55/DM74LS55 2-Wide, 4-Input AND-OR-INVERT Gate
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Flat Package (W)
Order Number DM54LS55W
NS Package Number W14B
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