DN54LS260E [NSC]
Dual 5-Input NOR Gate; 双5输入或非门
| 型号： | DN54LS260E |
| 厂家： | 
National Semiconductor |
| 描述： | Dual 5-Input NOR Gate |
| 文件： | 总6页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
April 1992
DM54LS260/DM74LS260
Dual 5-Input NOR Gate
General Description
This device contains two individual five input gates, each of
which perform the logic NOR function.
Connection Diagram
Dual-In-Line Package
TL/F/9824–1
Order Number DM54LS260J, DM54LS260W,
DN54LS260E, DM74LS260M or DM74LS260N
See NS Package Number E20A, J14A, M14A, N14A or W14B
Truth Table
a
a
a
a
e
E Y
A
B
B
C
D
Inputs
C
Outputs
A
D
E
Y
L
X
X
X
X
H
L
X
X
X
H
X
L
X
X
H
X
X
L
X
H
X
X
X
L
H
X
X
X
X
H
L
L
L
L
L
C
1995 National Semiconductor Corporation
TL/F/9824
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
7V
Operating Free Air Temperature Range
DM54LS
DM74LS
b
b
a
55 C to 125 C
§
0 C to 70 C
§
a
§
§
a
65 C to 150 C
Storage Temperature Range
§
§
Recommended Operating Conditions
DM54LS260
DM74LS260
Symbol
Parameter
Units
Min
4.5
2
Nom
Max
Min
4.75
2
Nom
Max
V
V
V
Supply Voltage
5
5.5
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
0.7
0.8
V
IL
b
b
0.4
I
I
0.4
mA
mA
OH
OL
4
8
b
T
A
55
125
0
70
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
e
b
1.5
V
V
Input Clamp Voltage
V
Min, I
Min, I
18 mA
Max
V
V
I
CC
I
High Level Output
Voltage
V
V
DM54
DM74
DM54
DM74
DM74
2.5
2.7
OH
CC
OH
e
Max
IL
e
e
Max
V
OL
Low Level Output
Voltage
V
V
Min, I
0.4
CC
OL
e
Min
IH
0.5
0.4
V
e
e
I
4 mA, V
CC
Min
OL
@
Input Current Max
e
e
I
V
Max, V
V
7V
I
CC
I
0.1
20
mA
mA
mA
e
e
e
Input Voltage
10V
2.7V
0.4V
DM54
I
e
e
I
I
High Level Input Current
Low Level Input Current
V
V
Max, V
Max, V
IH
IL
CC
I
I
b
DM54
DM74
DM54
DM74
0.40
0.36
CC
b
e
(Note 2)
b
b
b
b
I
Short Circuit
V
CC
Max
20
20
100
100
OS
mA
Output Current
e
e
e
GND
I
I
Supply Current with Outputs High
Supply Current with Outputs Low
V
V
Max, V
Max, V
4.0
5.5
mA
mA
CCH
CC
IN
e
Open
CCL
CC
IN
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, and the duration should not exceed one second.
CC
A
e a
e a
25 C
Switching Characteristics V
5V, T
§
CC
A
e
e
2 kX, C
L
R
15 pF
Max
L
Symbol
Parameter
Units
Min
t
Propagation Delay Time
Low to High Level Output
PLH
PHL
10
12
ns
ns
t
Propagation Delay Time
High to Low Level Output
2
3
Physical Dimensions inches (millimeters)
Ceramic Leadless Chip Carrier Package (E)
Order Number DM54LS260E
NS Package Number E20A
14-Lead Ceramic Dual-In-Line Package (J)
Order Number DM54LS260J
NS Package Number J14A
4
Physical Dimensions inches (millimeters) (Continued)
14-Lead Small Outline Molded Package (M)
Order Number DM74LS260M
NS Package Number M14A
14-Lead Molded Dual-In-Line Package (N)
Order Number DM74LS260N
NS Package Number N14A
5
Physical Dimensions inches (millimeters) (Continued)
14-Lead Ceramic Flat Package (W)
Order Number DM54LS260W
NS Package Number W14B
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