Product details

Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 50000 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Catalog Operating temperature range (°C) 0 to 70
Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 50000 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Catalog Operating temperature range (°C) 0 to 70
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3 SOP (NS) 20 98.28 mm² 12.6 x 7.8 SSOP (DB) 20 56.16 mm² 7.2 x 7.8
  • Inputs Tolerant Down to 2 V, Compatible With 3.3-V or 2.5-V Logic Inputs
  • Maximum tpd of 15 ns at 5 V
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • PNP Inputs Reduce DC Loading
  • Hysteresis at Inputs Improves Noise Margins
  • Inputs Tolerant Down to 2 V, Compatible With 3.3-V or 2.5-V Logic Inputs
  • Maximum tpd of 15 ns at 5 V
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • PNP Inputs Reduce DC Loading
  • Hysteresis at Inputs Improves Noise Margins

The SNx4LS24x, SNx4S24x octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and non-inverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS24x and SN74S24x devices can be used to drive terminated lines down to 133 Ω.

The SNx4LS24x, SNx4S24x octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and non-inverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS24x and SN74S24x devices can be used to drive terminated lines down to 133 Ω.

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Technical documentation

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Type Title Date
* Data sheet SNx4LS24x, SNx4S24x Octal Buffers and Line Drivers With 3-State Outputs datasheet (Rev. D) PDF | HTML 10 Oct 2016
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note Designing with the SN54/74LS123 (Rev. A) 01 Mar 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
Not available on TI.com
Simulation model

SN74LS240 Behavioral SPICE Model

SDLM043.ZIP (7 KB) - PSpice Model
Simulation model

SN74LS240 IBIS Model (Rev. B)

SDLM007B.ZIP (7 KB) - IBIS Model
Package Pins CAD symbols, footprints & 3D models
PDIP (N) 20 Ultra Librarian
SOIC (DW) 20 Ultra Librarian
SOP (NS) 20 Ultra Librarian
SSOP (DB) 20 Ultra Librarian

Ordering & quality

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