NSC 54LS02

54LS02/DM54LS02/DM74LS02
Quad 2-Input NOR Gates
General Description
Features
This device contains four independent gates each of which
performs the logic NOR function.
Y
Alternate Military/Aerospace device (54LS02) is available. Contact a National Semiconductor Sales Office/
Distributor for specifications
Connection Diagram
Dual-In-Line Package
TL/F/6441 – 1
Order Number 54LS02DMQB, 54LS02FMQB, 54LS02LMQB, DM54LS02J, DM54LS02W, DM74LS02M or DM74LS02N
See NS Package Number E20A, J14A, M14A, N14A or W14B
Function Table
YeAaB
Inputs
Output
A
B
Y
L
L
H
H
L
H
L
H
H
L
L
L
H e High Logic Level
L e Low Logic Level
C1995 National Semiconductor Corporation
TL/F/6441
RRD-B30M105/Printed in U. S. A.
54LS02/DM54LS02/DM74LS02 Quad 2-Input NOR Gates
June 1989
Absolute Maximum Ratings (Note)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
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.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
b 55§ C to a 125§ C
DM54LS and 54LS
DM74LS
0§ C to a 70§ C
Storage Temperature Range
b 65§ C to a 150§ C
Recommended Operating Conditions
Symbol
DM54LS02
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
DM74LS02
Units
Min
Nom
Max
Min
Nom
Max
4.5
5
5.5
4.75
5
5.25
2
2
V
V
0.7
0.8
V
b 0.4
b 0.4
mA
8
mA
70
§C
4
b 55
125
0
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Min
Typ
(Note 1)
DM54
2.5
3.4
DM74
2.7
3.4
Conditions
Max
Units
b 1.5
V
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
Low Level Output
Voltage
VCC e Min, IOL e Max,
VIH e Min
DM54
0.25
DM74
0.35
0.5
IOL e 4 mA, VCC e Min
DM74
0.25
0.4
VOL
V
0.4
V
II
Input Current @ Max
Input Voltage
VCC e Max, VI e 7V
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 0.40
mA
IOS
Short Circuit
Output Current
VCC e Max
(Note 2)
ICCH
Supply Current with
Outputs High
VCC e Max
1.6
3.2
mA
ICCL
Supply Current with
Outputs Low
VCC e Max
2.8
5.4
mA
0.1
DM54
b 20
b 100
DM74
b 20
b 100
mA
mA
Switching Characteristics at VCC e 5V and TA e 25§ C (See Section 1 for Test Waveforms and Output Load)
RL e 2 kX
Symbol
Parameter
CL e 15 pF
Min
CL e 50 pF
Max
Min
Units
Max
tPLH
Propagation Delay Time
Low to High Level Output
13
18
ns
tPHL
Propagation Delay Time
High to Low Level Output
10
15
ns
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.
2
Physical Dimensions inches (millimeters)
Ceramic Leadless Chip Carrier Package (E)
Order Number 54LS02LMQB
NS Package Number E20A
3
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Dual-In-Line Package (J)
Order Number 54LS02DMQB or DM54LS02J
NS Package Number J14A
14-Lead Small Outline Molded Package (M)
Order Number DM74LS02M
NS Package Number M14A
4
Physical Dimensions inches (millimeters) (Continued)
14-Lead Molded Dual-In-Line Package (N)
Order Number DM74LS02N
NS Package Number N14A
5
54LS02/DM54LS02/DM74LS02 Quad 2-Input NOR Gates
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Flat Package (W)
Order Number 54LS02FMQB or DM54LS02W
NS Package Number W14B
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