DM74LS365A Hex 3-STATE Buffer/Bus Driver
August 1986
Revised March 2000
DM74LS365A
Hex 3-STATE Buffer/Bus Driver
General Description
This device contains six independent gates each of which
performs a non-inverting buffer function. The outputs have
the 3-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-imped-
ance state to the bus line. Thus the output will act neither
as a significant load nor as a driver. To minimize the possi-
bility 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.
Ordering Code:
Order Number
DM74LS365AM
DM74LS365AN
Package Number
M16A
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y
=
A
Input
G1
H
X
L
L
G2
X
H
L
L
A
X
X
H
L
Output
Y
Hi-Z
Hi-Z
H
L
H
=
HIGH Logic Level
L
=
LOW Logic Level
X
=
Either LOW or HIGH Logic Level
Hi-Z
=
3-STATE (Outputs are disabled)
© 2000 Fairchild Semiconductor Corporation
DS006427
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DM74LS365A
Absolute Maximum Ratings
(Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0°C to
+70°C
−65°C
to
+150°C
Note 1:
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 tables 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
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0
Parameter
Min
4.75
2
0.8
−2.6
24
70
Nom
5
Max
5.25
Units
V
V
V
mA
mA
°C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
V
I
V
OH
V
OL
Parameter
Input Clamp Voltage
HIGH Level
Output Voltage
LOW Level
Output Voltage
I
I
I
IH
I
IL
Conditions
V
CC
=
Min, I
I
= −18
mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max, V
IH
=
Min
I
OL
=
12 mA, V
CC
=
Min
Input Current @ Max Input Voltage V
CC
=
Max, V
I
=
7V
HIGH Level Input Current
LOW Level
Input Current
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.5V (Note 3)
V
CC
=
Max, V
I
=
0.4V (Note 4)
V
CC
=
Max, V
I
=
0.4V
I
OZH
I
OZL
I
OS
I
CC
Off-State Output Current with
V
CC
=
Max, V
O
=
2.4V
HIGH Level Output Voltage Applied V
IH
=
Min, V
IL
=
Max
Off-State Output Current with
V
CC
=
Max, V
O
=
0.4V
LOW Level Output Voltage Applied V
IH
=
Min, V
IL
=
Max
Short Circuit Output Current
V
CC
=
Max (Note 5)
Supply Current
V
CC
=
Max (Note 6)
−20
14
A Input
A Input
G Input
2.4
3.4
0.35
0.25
0.5
0.4
0.1
20
−20
−0.4
−0.4
20
−20
−100
24
mA
µA
µA
mA
µA
µA
mA
mA
Min
Typ
(Note 2)
Max
−1.5
Units
V
V
V
Note 2:
All typicals are at V
CC
=
5V, T
A
=
25°C.
Note 3:
Both G inputs are at 2V.
Note 4:
Both G inputs at 0.4V.
Note 5:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 6:
I
CC
is measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.
Switching Characteristics
at V
CC
=
5V and T
A
=
25°C
R
L
=
667Ω
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Parameter
Propagation Delay Time LOW-to-HIGH Level Output
Propagation Delay Time HIGH-to-LOW Level Output
Output Enable Time to HIGH Level Output
Output Enable Time to LOW Level Output
Output Disable Time from HIGH Level Output (Note 7)
Output Disable Time from LOW Level Output (Note 7)
C
L
=
50 pF
Min
Max
16
16
30
30
20
20
C
L
=
150 pF
Min
Max
25
25
40
40
ns
ns
ns
ns
ns
ns
Units
Note 7:
C
L
=
5 pF.
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DM74LS365A
Physical Dimensions
inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
3
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DM74LS365A Hex 3-STATE Buffer/Bus Driver
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N16E
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
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