SN74HC125 (1 gate)

Physical Push

Button

Microprocessor

SN54HC125

SN74HC125

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SCLS104E – AUGUST 1984 – REVISED DECEMBER 2015

9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

The SNx4HC125 can be used to buffer noisy or weak input signals in order to clean up these signals and drive a

strong logic level to a processor or other sampling system.

9.2 Typical Application

Figure 3. Typical Application Diagram

9.2.1 Design Requirements

This device uses CMOS technology and has balanced output drive. Take care 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

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Rise time and fall time specs. See (

Δt/ΔV) in the Recommended Operating Conditions table.

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2. Recommend Output Conditions

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table.

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Product Folder Links: SN54HC125 SN74HC125