NSC DM7450N

DM7450 Expandable Dual 2-Wide 2-Input
AND-OR-INVERT Gate
General Description
This device contains two independent combinations of
gates, each of which perform the logic AND-OR-INVERT
function. One set of gates has an expander node.
Connection Diagram
Dual-In-Line Package
TL/F/9778 – 1
Order Number DM7450N
See NS Package Number N14A
C1995 National Semiconductor Corporation
TL/F/9778
RRD-B30M115/Printed in U. S. A.
DM7450 Expandable Dual 2-Wide 2-Input AND-OR-INVERT Gate
June 1989
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
Input Voltage
Operating Free Air Temperature Range
DM74
7V
5.5V
0§ C to a 70§ C
b 65§ C to a 150§ C
Storage Temperature Range
Recommended Operating Conditions
Symbol
DM7450
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
Units
Min
Nom
Max
4.75
5
5.25
V
2
V
0.8
V
b 0.4
mA
16
mA
70
§C
0
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
(Note 1)
Max
Units
b 1.5
V
VI
Input Clamp Voltage
VCC e Min, II e b12 mA
VOH
High Level Output
Voltage
VCC e Min, IOH e b400 mA
VIL e Max
VOL
Low Level Output
Voltage
VCC e Min, IOL e Max
VIH e Max
II
Input Current @ Max
Input Voltage
VCC e Max, VI e 5.5V
IX
Expander Current
V1 e 0.4V, IOL e 16 mA
VCC e Min, TA e Min
IIH
High Level Input Current
VCC e Max, VI e 2.4V
40
mA
IIL
Low Level Input Current
VCC e Max, VI e 0.4V
b 1.6
mA
IOS
Short Circuit
Output Current
VCC e Max (Note 2)
b 57
mA
ICCH
Supply Current with
Outputs High
VCC e Max
8
mA
ICCL
Supply Current with
Outputs Low
VCC e Max
14
mA
VBE(Q)
Base-Emitter Voltage
of Output Transistor Q
I1 e 0.62 mA
IOL e 16 mA
R1 e 0X
1.0
V
2
2.4
3.4
0.2
b 18
V
0.4
V
1
mA
3.1
mA
Switching Characteristics at VCC e 5V and TA e 25§ C (See Section 1 for Test Waveforms and Output Load)
Parameter
Conditions
tPLH
Symbol
Propagation Delay Time
Low to High Level Output
CL e 15 pF
RL e 400X
tPHL
Propagation Delay Time
High to Low Level Output
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.
3
Min
Max
Units
22
ns
15
ns
DM7450 Expandable Dual 2-Wide 2-Input AND-OR-INVERT Gate
Physical Dimensions inches (millimeters)
14-Lead Molded Dual-In-Line Package (N)
Order Number DM7450N
NS Package Number N14A
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