SN74AS240ANSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS240ANSR is an octal buffer and line driver from the Texas Instruments AS logic series. It features three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high drive capability with a low-level output current of 64 mA and a high-level output current of -32 mA. Propagation delay is specified at 4.6 ns. It is housed in a 20-pin SOIC package and supports surface-mount installation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent buffering channels
• Three-state outputs enabling bus-oriented memory and clock driving applications
• High-current drive capability suitable for heavy capacitive loads

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented systems requiring signal isolation
• Memory map registers for data buffering
• Clock drivers for distributing timing signals

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'ANSR' corresponds to the SOIC-20 package and tape-and-reel packaging format. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the required 4.5 V to 5.5 V power supply rails and thermal management for the surface-mount package.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed buffering with significant current drive is required. The AS series offers faster propagation delays compared to standard TTL or HC families. Verify that the 20-pin SOIC footprint matches the PCB layout constraints and that the operating temperature range meets the environmental requirements of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS family, which represents advanced Schottky TTL technology. It serves as a high-performance alternative to older logic families, offering improved speed and drive strength while maintaining compatible pinouts with standard 74-series devices. The 'A' variant typically indicates enhanced specifications over the base model.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74AS240N for PDIP packaging or SN74AS240NSR for SOIC tape-and-reel. Cross-family replacements like SN74ABT240ANSR offer similar functionality with BiCMOS technology but may require voltage level verification.