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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

OE1

OE2

To Seven Other Channels

A1

Y1

1

19

2

18

SN54LVC541A, SN74LVC541A

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS298M – JANUARY 1993 – REVISED MAY 2005

The 'LVC541A devices are ideal for driving bus lines or buffering memory address registers.

These devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board

layout.

The 3-state control gate is a 2-input AND gate with active-low inputs so that, if either output enable (OE1 or OE2)

input is high, all eight outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators

in a mixed 3.3-V/5-V system environment.

outputs, preventing damaging current backflow through the devices when they are powered down.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

FUNCTION TABLE

INPUTS

OUTPUT

Y

OE1

OE2

A

L

L

L

L

L

L

H

H

H

X

X

Z

X

H

X

Z

LOGIC DIAGRAM (POSITIVE LOGIC)

2