Datasheet

5-1
FAST AND LS TTL DATA
3-STATE HEX BUFFERS
These devices are high speed hex buffers with 3-state outputs. They are
organized as single 6-bit or 2-bit/4-bit, with inverting or non-inverting data (D)
paths. The outputs are designed to drive 15 TTL Unit Loads or 60 Low Power
Schottky loads when the Enable (E) is LOW.
When the Output Enable (E) is HIGH, the outputs are forced to a high
impedance “off” state. If the outputs of the 3-state devices are tied together,
all but one device must be in the high impedance state to avoid high currents
that would exceed the maximum ratings. Designers should ensure that Output
Enable signals to 3-state devices whose outputs are tied together are
designed so there is no overlap.
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage 54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
T
A
Operating Ambient Temperature Range 54
74
–55
0
25
25
125
70
°C
I
OH
Output Current — High 54
74
1.0
2.6
mA
I
OL
Output Current — Low 54
74
12
24
mA
SN54/74LS365A
SN54/74LS366A
SN54/74LS367A
SN54/74LS368A
3-STATE HEX BUFFERS
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03

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