5-516

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

VCC

Supply Voltage

54

74

4.5

4.75

5.0

5.0

5.5

5.25

V

TA

Operating Ambient Temperature Range

54

74

– 55

0

25

25

125

70

°C

IOH

Output Current — High

54

74

– 1.0

– 2.6

mA

IOL

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