SN74LS240DWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS240DWG4 is an octal buffer and line driver from the Texas Instruments 74LS logic family. It features eight independent channels with three-state outputs and inverting polarity. The device operates within a supply voltage range of 4.75 V to 5.25 V. It provides a maximum low-level output current of 24 mA and a maximum high-level output current of -8 mA. The component is housed in a 20-pin SOIC package and supports surface-mount installation. It functions reliably across an operating temperature range of 0 °C to +70 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent buffering channels for parallel data handling
• Three-state output capability enabling direct connection to bus structures without external switches
• Inverting logic polarity for signal phase adjustment in digital circuits
• High drive strength suitable for driving capacitive loads on transmission lines

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address buffering in computer systems
• Clock drivers for distributing timing signals
• Bus-oriented transmissions in industrial control systems
• Pattern generators for test equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the G4 suffix indicates lead-free composition and RoHS compliance per manufacturer standards. Confirm the DW package designation corresponds to the standard 20-pin Small Outline Integrated Circuit form factor. Ensure the ordering part number matches the specific LS series requirements for your design. Cross-reference the datasheet revision to confirm pinout consistency with existing schematics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring eight-channel buffering with bus-compatible three-state outputs. The LS series offers established compatibility with legacy TTL logic levels. Consider the 24 mA sink current capability for driving moderate capacitive loads. Verify that the 0 °C to +70 °C commercial temperature range meets the environmental constraints of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely used 74LS (Low-power Schottky) logic family, known for balanced speed and power consumption. The SN74LS240 variant specifically provides octal buffering with three-state outputs. The G4 suffix denotes a lead-free, RoHS-compliant version manufactured by Texas Instruments. It serves as a standard interface solution for digital bus architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74LS240N is a through-hole equivalent offering identical logical functionality. Other manufacturers produce compatible parts under the generic 74LS240 designation. Verify pin-to-pin compatibility and electrical specifications before substituting with non-Texas Instruments sources.