1A

1Y

1

6

2A

2Y

3

4

SN74LVC2G14

SCES200O – APRIL 1999 – REVISED AUGUST 2015

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8 Detailed Description

8.1 Overview

The SN74LVC2G14 device contains two Schmitt Trigger Inverter and performs the Boolean function Y = A. The

device functions as an independent inverter, but because of Schmitt Trigger action, it will have different input

threshold levels for a positive-going (Vt+) and negative-going (Vt-) signals.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuit disables the output,

preventing damaging current back-flow through the device when it is powered down.

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Support Translation Down (5 V to 3.3 V; 3.3 V to 1.8 V)

As the inputs are 5.5-V tolerant, the device can be used as a down translator. When the input voltage exceeds

VT+ (Max), the output will follow VCC, performing down-translation if the input voltage exceeds VCC.

8.4 Device Functional Modes

Table 1 lists the functional modes of the SN74LVC2G14.

Table 1. Functional Table

(Each Inverter)

INPUT

OUTPUT

A

Y

H

L

L

H

8

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