National Semiconductor 5437, DM5437, DM7437 Technical data
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5437/DM5437/DM7437
Quad 2-Input NAND Buffers
5437/DM5437/DM7437 Quad 2-Input NAND Buffers
June 1989
General Description
This device contains four independent gates each of which
performs the logic NAND function.
Connection Diagram
Dual-In-Line Package
Order Number 5437DMQB, 5437FMQB, DM5437J, DM5437W or DM7437N
See NS Package Number J14A, N14A or W14B
Function Table
Inputs Output
AB Y
LL H
LH H
HL H
HH L
e
H
High Logic Level
e
L
Low Logic Level
Features
Y
Alternate Military/Aerospace device (5437) is available.
Contact a National Semiconductor Sales Office/Distributor for specifications.
TL/F/6512– 1
YeAB
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.
TL/F/6512
Absolute Maximum Ratings (Note)
The ‘‘Absolute Maximum Ratings’’ are those values
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range
DM54 and 54
DM74 0
Storage Temperature Range
b
55§Ctoa125§C
Ctoa70§C
§
b
65§Ctoa150§C
Note:
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.
Recommended Operating Conditions
Symbol Parameter
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
High Level Input Voltage 2 2 V
Low Level Input Voltage 0.8 0.8 V
High Level Output Current
Low Level Output Current 48 48 mA
Free Air Operating Temperature
DM5437 DM7437
Min Nom Max Min Nom Max
b
1.2
b
55 125 0 70
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min
e
V
V
V
I
I
I
IH
I
IL
I
OS
I
CCH
I
CCL
I
OH
OL
Input Clamp Voltage V
High Level Output V
Voltage V
Low Level Output V
Voltage V
Input Current@Max V
Input Voltage
High Level Input Current V
Low Level Input Current V
Short Circuit V
Output Current (Note 2)
Supply Current with V
Outputs High
Supply Current with V
Outputs Low
CC
CC
IL
CC
IH
CC
CC
CC
CC
CC
CC
e
e
eb
Min, I
e
Min, I
Max
e
Min, I
Min
e
Max, V
e
Max, V
e
Max, V
e
Max DM54
e
Max
e
Max
12 mA
I
e
Max
OH
e
Max
OL
e
5.5V
I
e
2.4V 40 mA
I
e
0.4V
I
DM74
2.4 3.3 V
b
b
Units
b
1.2 mA
C
§
Typ
(Note 1)
Max Units
b
1.5 V
0.2 0.4 V
1mA
b
1.6 mA
20
18
b
70
b
70
mA
9 15.5 mA
34 54 mA
Switching Characteristics at V
CC
e
5V and T
e
25§C (See Section 1 for Test Waveforms and Output Load)
A
Symbol Parameter Conditions Min Max Units
t
PLH
t
PHL
Note 1: All typicals are at V
Note 2: Not more than one output should be shorted at a time.
Propagation Delay Time C
Low to High Level Output R
Propagation Delay Time
High to Low Level Output
e
e
5V, T
CC
25§C.
A
e
45 pF
L
e
133X
L
22 ns
15 ns
2
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