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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

SN54AHC540

SN74AHC540

SCLS260M – DECEMBER 1995 – REVISED MAY 2016

SNx4AHC540 Octal Buers/Drivers With 3-State Outputs

1 Features

• Operating Range 2-V to 5.5-V V CC

• Latch-Up Performance Exceeds 250 mA

Per JESD 17

• On Products Compliant to MIL-PRF-38535,

All Parameters Are Tested Unless Otherwise

Noted. On All Other Products, Production

Processing Does Not Necessarily Include Testing

of All Parameters.

2 Applications

• Servers

• PCs and Notebooks

• Network Switches

• Wearable Health and Fitness Devices

• Telecom Infrastructures

• Electronic Points of Sale

3 Description

The SNx4AHC540 octal buers/drivers are ideal for

driving bus lines or buer memory address registers.

These devices feature inputs and outputs on opposite

sides of the package to facilitate printed circuit board

layout.

Device Information(1)

PART NUMBER PACKAGE (PINS) BODY SIZE (NOM)

SN74AHC540N PDIP (20) 25.40 mm × 6.35 mm

SN74AHC540DB SSOP (20) 7.50 mm × 5.30 mm

SN74AHC540PW TSSOP (20) 6.50 mm × 4.40 mm

SN74AHC540DGV TVSOP (20) 5.00 mm × 4.40 mm

SN74AHC540DW SOIC (20) 12.80 mm × 7.50 mm

SNJ54AHC540FK LCCC (20) 9.0 mm x 9.0 mm

SNJ54AHC540W CFP (20) 13.72 mm x 8.13 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplied Schematic

SN54AHC540

SN74AHC540

SCLS260M – DECEMBER 1995 – REVISED MAY 2016

www.ti.com

Product Folder Links: SN54AHC540 SN74AHC540

Table of Contents

1 Features .................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Pin Conguration and Functions ......................... 4

6 Specications......................................................... 5

6.1 Absolute Maximum Ratings ...................................... 5

6.2 ESD Ratings.............................................................. 5

6.3 Recommended Operating Conditions....................... 5

6.4 Thermal Information.................................................. 6

6.5 Electrical Characteristics........................................... 6

6.6 Switching Characteristics, VCC = 3.3 V ± 0.3 V ........ 7

6.7 Switching Characteristics, VCC = 5 V ± 0.5 V ........... 7

6.8 Noise Characteristics ................................................ 8

6.9 Operating Characteristics.......................................... 8

6.10 Typical Characteristics ............................................ 8

7 Parameter Measurement Information .................. 9

8 Detailed Description ............................................ 10

8.1 Overview ................................................................. 10

8.2 Functional Block Diagram ....................................... 10

8.3 Feature Description................................................. 10

8.4 Device Functional Modes........................................ 10

9 Application and Implementation ........................ 11

9.1 Application Information............................................ 11

9.2 Typical Application ................................................. 11

10 Power Supply Recommendations ..................... 12

10.1 Layout Guidelines ................................................. 12

11 Layout................................................................... 12

11.1 Layout Example .................................................... 12

12 Device and Documentation Support ................. 13

12.1 Community Resources.......................................... 13

12.2 Related Links ........................................................ 13

12.3 Trademarks ........................................................... 13

12.4 Electrostatic Discharge Caution............................ 13

12.5 Glossary ................................................................ 13

13 Mechanical, Packaging, and Orderable

Information ........................................................... 13

4 Revision History

NOTE: Page numbers for previous revisions may dier from page numbers in the current version.

Changes from Revision L (October 2015) to Revision M Page

• Updated front page Simplied Schematic diagram ............................................................................................................... 1

• Updated Pin Out drawing diagrams to new standard ............................................................................................................ 4

• Updated Functional Block Diagram ..................................................................................................................................... 10

• Updated Outputs in Function Table of section ..........................................................................Device Functional Modes 10

Changes from Revision K (September 2014) to Revision L Page

• Added junction temperature .................................................................................................................................................. 5

• Updated the table to an table and move the storage temperature to theHandling Ratings ESD Ratings Absolute

Maximum Ratings table ......................................................................................................................................................... 5

• Corrected the to state that the outputs provide non-inverted data ......................................................................Overview 10

• Added .............................................................................................................................................Community Resources 13

Changes from Revision J (July 2003) to Revision K Page

• Updated document to new TI data sheet format. ................................................................................................................... 1

• Deleted Ordering Information table ........................................................................................................................................ 1

• Added Military Disclaimer to Features list .............................................................................................................................. 1

• Added .................................................................................................................................................................Applications 1

• Updated the simplied schematic........................................................................................................................................... 1

• Added table......................................................................................................................................................Pin Functions 4

• Added table ................................................................................................................................................Handling Ratings 5

• Extended operating temperature range to 125°C................................................................................................................... 5

• Added Thermal Information table. .......................................................................................................................................... 6

• Added –40°C to 125°C range for SN74AHC540 in table...............................................................Electrical Characteristics 6

SN54AHC540

SN74AHC540

www.ti.com

SCLS260M – DECEMBER 1995 – REVISED MAY 2016

Product Folder Links: SN54AHC540 SN74AHC540

• Added TA= –40°C to 125°C for SN74AHC540 in both Switching Characteristics tables. ..................................................... 7

• Added Typical Characteristics. ............................................................................................................................................... 8

• Added section......................................................................................................................................Detailed Description 10

• Added section....................................................................................................................Application and Implementation 11

• Added and sections............................................................................................Power Supply Recommendations Layout 12