SN74LVC541APWR datasheet(12/46 Pages) TI2

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8 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, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

SNx4LVC541A is a high drive CMOS device that can be used for a multitude of bus interface type applications

where output drive or PCB trace length is a concern.

8.2 Typical Application

1A1

1Y1

System

Controller

1A1

1Y1

Transmitter

Receiver

L > 12 cm

Peripheral

Figure 8-1. Application Schematic

8.2.1 Design Requirements

8.2.1.1 Power Considerations

Verify that the desired supply voltage is within the range specified in the Electrical Characteristics. The supply

voltage sets the device electrical characteristics, as described in the Electrical Characteristics section.

The positive voltage supply must be capable of sourcing current equal to the total current to be sourced by all

outputs of the SNx4LVC541A plus the maximum static supply current, ICC, listed in the Electrical Characteristics,

and any transient current required for switching. The logic device can only source as much current that is

provided by the positive supply source. Verify that the maximum total current through VCC listed in the Absolute

Maximum Ratings is not exceeded.

The ground must be capable of sinking current equal to the total current to be sunk by all outputs of the

SNx4LVC541A plus the maximum supply current, ICC, listed in the Electrical Characteristics, and any transient

current required for switching. The logic device can only sink as much current that can be sunk into the ground

connection. Verify that the maximum total current through GND listed in the Absolute Maximum Ratings is not

exceeded.

The SNx4LVC541A can drive a load with a total capacitance less than or equal to 50pF while still meeting all of

the datasheet specifications. Larger capacitive loads can be applied; however, do not exceed 50pF.

The SNx4LVC541A can drive a load with total resistance described by RL ≥ VO / IO, with the output voltage and

current defined in the Electrical Characteristics table with VOH and VOL. When outputting in the HIGH state, the

output voltage in the equation is defined as the difference between the measured output voltage and the supply

voltage at the VCC pin.

Total power consumption can be calculated using the information provided in the CMOS Power Consumption

and Cpd Calculation application note.

Thermal increase can be calculated using the information provided in the Thermal Characteristics of Standard

Linear and Logic (SLL) Packages and Devices application note.

CAUTION

The maximum junction temperature, TJ(max) listed in the Absolute Maximum Ratings, is an additional

limitation to prevent damage to the device. Do not violate any values listed in the Absolute Maximum

Ratings. These limits are provided to prevent damage to the device.

SN54LVC541A, SN74LVC541A

SCAS298O – JANUARY 1993 – REVISED JUNE 2026

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