SN74ALS540DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS540DWR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the ALS logic series. It features eight inverting outputs with three-state capability, housed in a 20-pin SOIC package for surface-mount installation. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 12 ns, a high-level output current of -15 mA, and a low-level output current of 24 mA. It functions reliably across an operating temperature range from 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight-channel signal buffering with inverting logic functionality
• Integrates three-state outputs to facilitate bus-oriented systems
• Utilizes Advanced Low-power Schottky technology for enhanced speed

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and address decoding systems
• Clock drivers and buffer circuits
• High-performance register applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' to confirm the tape-and-reel packaging format, as it differs from tube-packaged variants like 'DW'. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards. Confirm that the ALS logic family aligns with your system's power and speed constraints before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with active drive capabilities on shared buses. The three-state feature allows multiple devices to share data lines without interference. Consider the 12 ns propagation delay and 5.5 V maximum rating to ensure compatibility with existing TTL or CMOS logic levels in your circuit design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS540/541 family of octal buffers and line drivers. The '540' designation specifically indicates inverting polarity, whereas the '541' variant offers non-inverting logic. Both share identical pinouts and electrical characteristics, differing only in logical inversion. The 'DWR' suffix denotes the SOIC-20 package type combined with reel packaging for automated assembly.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ALS541DWR serves as a direct functional substitute if non-inverting logic is required instead of inverting. Other ALS-series octal buffers may be compatible provided they match the 20-SOIC footprint and electrical ratings.