DM7450N [NSC]
Expandable Dual 2-Wide 2-Input AND-OR-INVERT Gate; 可扩展双路2宽2输入与或反转门
| 型号： | DM7450N |
| 厂家： | 
National Semiconductor |
| 描述： | Expandable Dual 2-Wide 2-Input AND-OR-INVERT Gate |
| 文件： | 总4页 (文件大小：85K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
June 1989
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
C
1995 National Semiconductor Corporation
TL/F/9778
RRD-B30M115/Printed in U. S. A.
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 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.
Supply Voltage
Input Voltage
7V
5.5V
Operating Free Air Temperature Range
DM74
a
0 C to 70 C
§
§
b
a
65 C to 150 C
Storage Temperature Range
§
§
Recommended Operating Conditions
DM7450
Symbol
Parameter
Units
Min
4.75
2
Nom
Max
V
V
V
Supply Voltage
5
5.25
V
V
CC
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
IH
0.8
V
IL
b
I
I
0.4
16
70
mA
mA
OH
OL
T
A
0
C
§
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Typ
Symbol
Parameter
Conditions
Min
Max
Units
(Note 1)
e
e
e b
I
b
1.5
V
V
Input Clamp Voltage
V
Min, I
12 mA
e b
400 mA
V
V
I
CC
High Level Output
Voltage
V
V
Min, I
OH
CC
OH
2.4
3.4
0.2
e
Max
IL
e
e
Max
V
OL
Low Level Output
Voltage
V
V
Min, I
CC
OL
0.4
V
e
Max
IH
@
Input Current Max
e
e
5.5V
I
I
V
Max, V
I
CC
I
1
mA
mA
Input Voltage
e
e
e
Expander Current
V1
0.4V, I
16 mA
Min
X
OL
3.1
40
e
V
V
V
V
Min, T
A
CC
e
e
e
e
e
I
I
I
High Level Input Current
Low Level Input Current
Max, V
Max, V
2.4V
0.4V
mA
IH
IL
CC
CC
CC
I
I
b
1.6
mA
Short Circuit
Max (Note 2)
OS
b
b
57
18
mA
mA
mA
Output Current
e
e
I
I
Supply Current with
Outputs High
V
CC
V
CC
I1
Max
CCH
CCL
8
Supply Current with
Outputs Low
Max
14
e
0.62 mA
V
Base-Emitter Voltage
of Output Transistor Q
BE(Q)
e
I
16 mA
1.0
V
OL
e
R
0X
1
2
e
e
25 C (See Section 1 for Test Waveforms and Output Load)
Switching Characteristics at V
5V and T
§
CC
A
Symbol
Parameter
Conditions
Min
Max
Units
e
e
t
t
Propagation Delay Time
C
15 pF
PLH
PHL
L
22
ns
Low to High Level Output
R
400X
L
Propagation Delay Time
High to Low Level Output
15
ns
e
e
25 C.
Note 1: All typicals are at V
5V, T
§
Note 2: Not more than one output should be shorted at a time.
CC
A
3
Physical Dimensions inches (millimeters)
14-Lead Molded Dual-In-Line Package (N)
Order Number DM7450N
NS Package Number N14A
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