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National Semiconductor Electronic Components Datasheet

DM74LS02 Datasheet

Quad 2-Input NOR Gates

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June 1989
54LS02 DM54LS02 DM74LS02
Quad 2-Input NOR Gates
General Description
This device contains four independent gates each of which
performs the logic NOR function
Features
Y Alternate Military Aerospace device (54LS02) is avail-
able 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
AB
LL
LH
HL
HH
Y
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


National Semiconductor Electronic Components Datasheet

DM74LS02 Datasheet

Quad 2-Input NOR Gates

No Preview Available !

Absolute Maximum Ratings (Note)
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
DM54LS and 54LS
b55 C to a125 C
DM74LS
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Note The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed 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
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
Min
45
2
b55
DM54LS02
Nom
5
Max
55
07
b0 4
4
125
Min
4 75
2
0
DM74LS02
Nom
5
Max
5 25
08
b0 4
8
70
Units
V
V
V
mA
mA
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
VI
VOH
VOL
II
IIH
IIL
IOS
ICCH
ICCL
Parameter
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current Max
Input Voltage
High Level Input Current
Low Level Input Current
Short Circuit
Output Current
Supply Current with
Outputs High
Supply Current with
Outputs Low
Conditions
VCC e Min II e b18 mA
VCC e Min IOH e Max
VIL e Max
VCC e Min IOL e Max
VIH e Min
IOL e 4 mA VCC e Min
VCC e Max VI e 7V
DM54
DM74
DM54
DM74
DM74
VCC e Max VI e 2 7V
VCC e Max VI e 0 4V
VCC e Max
(Note 2)
VCC e Max
DM54
DM74
VCC e Max
Min
25
27
b20
b20
Typ
(Note 1)
34
34
0 25
0 35
0 25
16
28
Max
b1 5
04
05
04
01
20
b0 40
b100
b100
32
54
Units
V
V
V
mA
mA
mA
mA
mA
mA
Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
RL e 2 kX
CL e 15 pF
CL e 50 pF
Min Max Min Max
Units
tPLH
Propagation Delay Time
Low to High Level Output
13
18 ns
tPHL
Propagation Delay Time
High to Low Level Output
10
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
15 ns
2


Part Number DM74LS02
Description Quad 2-Input NOR Gates
Maker National Semiconductor
Total Page 6 Pages
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