NSC JM38510-32201BE, JD54LS365B2A Datasheet
TL/F/6427
54LS365A/DM54LS365A/DM74LS365A Hex TRI-STATE Buffers
June 1989
54LS365A/DM54LS365A/DM74LS365A
Hex TRI-STATE
É
Buffers
General Description
This device contains six independent gates each of which
performs a non-inverting buffer function. The outputs have
the TRI-STATE feature. When enabled, the outputs exhibit
the low impedance characteristics of a standard LS output
with additional drive capability to permit the driving of bus
lines without external resistors. When disabled, both the
output transistors are turned off presenting a high-impedance state to the bus line. Thus the output will act neither as
a significant load nor as a driver. To minimize the possibility
that two outputs will attempt to take a common bus to opposite logic levels, the disable time is shorter than the enable
time of the outputs.
Features
Y
Alternate Military/Aerospace device (54LS365A) is
available. Contact a National Semiconductor Sales Office/Distributor for specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6427– 1
Order Number 54LS365ADMQB, 54LS365AFMQB, 54LS365ALMQB,
DM54LS365AJ, DM54LS365AW, DM74LS265AM or DM74LS365AN
See NS Package Number E20A, J16A, M16A, N16E or W16A
Function Table
YeA
Input Output
G1G2A Y
H X X Hi-Z
X H X Hi-Z
LLH H
LLL L
H
e
High Logic Level
L
e
Low Logic Level
X
e
Either Low or High Logic Level
Hi-Z
e
TRI-STATE (Outputs are disabled)
TRI-STATEÉis a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M105/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.
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range
DM54LS and 54LS
b
55§Ctoa125§C
DM74LS 0
§
Ctoa70§C
Storage Temperature Range
b
65§Ctoa150§C
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.
Recommended Operating Conditions
Symbol Parameter
DM54LS365A DM74LS365A
Units
Min Nom Max Min Nom Max
V
CC
Supply Voltage 4.5 5 5.5 4.75 5 5.25 V
V
IH
High Level Input Voltage 2 2 V
V
IL
Low Level Input Voltage 0.7 0.8 V
I
OH
High Level Output Current
b
1
b
2.6 mA
I
OL
Low Level Output Current 12 24 mA
T
A
Free Air Operating Temperature
b
55 125 0 70
§
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min
Typ
Max Units
(Note 1)
V
I
Input Clamp Voltage V
CC
e
Min, I
I
eb
18 mA
b
1.5 V
V
OH
High Level Output V
CC
e
Min, I
OH
e
Max
2.4 3.4 V
Voltage V
IL
e
Max, V
IH
e
Min
V
OL
Low Level Output V
CC
e
Min, I
OL
e
Max DM54 0.25 0.4
Voltage V
IL
e
Max, V
IH
e
Min
DM74 0.35 0.5 V
I
OL
e
12 mA, V
CC
e
Min DM74 0.25 0.4
I
I
Input Current@Max V
CC
e
Max, V
I
e
7V
0.1 mA
Input Voltage
I
IH
High Level Input Current V
CC
e
Max, V
I
e
2.7V 20 mA
I
IL
Low Level Input V
CC
e
Max, V
I
e
0.5V A Input
b
20 mA
Current (Note 4)
V
CC
e
Max, V
I
e
0.4V A Input
b
0.4
(Note 5) mA
V
CC
e
Max, V
I
e
0.4V G Input
b
0.4
I
OZH
Off-State Output Current V
CC
e
Max, V
O
e
2.4V
with High Level Output V
IH
e
Min, V
IL
e
Max 20 mA
Voltage Applied
I
OZL
Off-State Output Current V
CC
e
Max, V
O
e
0.4V
with Low Level Output V
IH
e
Min, V
IL
e
Max
b
20 mA
Voltage Applied
I
OS
Short Circuit V
CC
e
Max DM54
b
20
b
100
mA
Output Current (Note 2)
DM74
b
20
b
100
I
CC
Supply Current V
CC
e
Max (Note 3) 14 24 mA
Note 1: All typicals are at V
CC
e
5V, T
A
e
25§C.
Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 3: I
CC
is measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.
Note 4: Both G
inputs are at 2V.
Note 5: Both G
inputs at 0.4V.
2
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