Part Image

SN74LS540DW - Texas Instruments

Description: Texas Instruments SN74LS540DW Octal Buffer & Line Driver, 3-State, Inverting, 4.75 → 5.25 V, 20-Pin SOIC

Download SN74LS540DW Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
PCB Footprints
SN74LS540DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0020A
click to zoom
3D Models
SN74LS540DW - Texas Instruments  - 3D model - Small Outline Packages - DW0020A
click to zoom

SN74LS540DW Details

  • Manufacturer Part Number:

    SN74LS540DW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, SOIC-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    WITH DUAL OUTPUT ENABLE

  • Control Type:

    ENABLE LOW

  • Count Direction:

    UNIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS DRIVER

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    45 mA

  • Prop. Delay@Nom-Sup:

    15 ns

  • Propagation Delay (tpd):

    15 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Width:

    7.5 mm

SN74LS540DW Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS540DW is 35 MHz.
  • No, the SN74LS540DW is a 5V device and is not compatible with 3.3V systems. You may need to use a level translator or a different device that is compatible with 3.3V systems.
  • The SN74LS540DW has a maximum power dissipation of 500 mW. To handle heat dissipation, ensure good airflow around the device, use a heat sink if necessary, and follow proper PCB design and layout guidelines.
  • Yes, the SN74LS540DW is compatible with TTL (Transistor-Transistor Logic) logic levels.
  • No, the SN74LS540DW is a commercial-grade device and is not suitable for high-reliability or aerospace applications. You may need to use a radiation-hardened or high-reliability device specifically designed for such applications.

Trust Checks

This model has been verified by system checks.
System Verified
Sponsored

SN74LS540DW Overview

Use the download button to access the SN74LS540DW schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like SN74L, or try a keyword search, such as Bus Driver/Transceivers

About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

Parts related to SN74LS540DW

Showing 0 results

SN74LS540DW Alternates

Showing results

Image Part Number Model
Part Image DM74LS540WM Rochester Electronics LLC

LS SERIES, 8-BIT DRIVER, INVERTED OUTPUT, PDSO20, PLASTIC, SOP-20

Part Image DM74LS540WM National Semiconductor Corporation

Bus Driver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20

Part Image DM74LS540WMX Texas Instruments

Bus Driver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20

Part Image SN74LS540DWE4 Texas Instruments

Bus Driver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20

Part Image SN74LS540DWRG4 Texas Instruments

Bus Driver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20

For a full list of alternate parts for SN74LS540DW, check out Findchips.com