A

B

Y

9

SN54LVC00A, SN74LVC00A

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SCAS279R – JANUARY 1993 – REVISED FEBRUARY 2016

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Copyright © 1993–2016, Texas Instruments Incorporated

9 Detailed Description

9.1 Overview

The maximum sink and source current is 24mA.

Inputs can be driven from 1.8-V, 2.5-V, 3.3-V (LVTTL), or 5-V (CMOS) devices. This feature allows the use of

this device as translators in a mixed-system environment.

preventing damaging current backflow through the device when it is powered down.

9.2 Functional Block Diagram

Logic Diagram, Each Gate (Positive Logic)

9.3 Feature Description

•

Wide operating voltage range

–

Operates from 1.65 V to 3.6 V

•

Allows up or down voltage translation

–

Inputs and outputs accept voltages to 5.5 V

•

–

9.4 Device Functional Modes

Table 1. Function Table

(Each Gate)

INPUTS

OUTPUT

Y

A

B

H

H

L

L

X

H

X

L

H