uC or Logic

uC or Logic

Basic LED Driver

uC or Logic

NOR Logic Function

uC or Logic

uC or Logic

LVC2G02

LVC2G02

10

SN74LVC2G02

SCES194N – APRIL 1999 – REVISED MAY 2019

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Copyright © 1999–2019, Texas Instruments Incorporated

9 Application and Implementation

9.1 Application Information

The SN74LVC2G02 is a high-drive CMOS device that can be used for implement NOR logic with a high output

drive, such as an LED application. It can produce 24-mA of drive current at 3.3 V making it Ideal for driving

multiple outputs and good for high speed applications up to 100 Mhz. The inputs are 5.5-V tolerant allowing

translation down to VCC.

9.2 Typical Application

9.2.1 Design Requirements

This device uses CMOS technology and has balanced output drive. Care should be taken to avoid bus

contention because it can drive currents that would exceed maximum limits. The high drive will also create fast

edges into light loads, so routing and load conditions should be considered to prevent ringing.

9.2.2 Detailed Design Procedure

1. Recommended Input Conditions:

–

Rise time and fall time specs. See (Δt/ΔV) in the Recommended Operating Conditions table.

–

Specified high and low levels. See (VIH and VIL) in the Recommended Operating Conditions table.

–

Inputs are overvoltage tolerant allowing them to go as high as (VI max) in the Recommended Operating

Conditions table at any valid VCC.

2. Recommend Output Conditions:

–

Load currents should not exceed (IO max) per output and should not exceed total current (continuous

current through VCC or GND) for the part. These limits are located in the Absolute Maximum Ratings

table.

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Outputs should not be pulled above VCC.