SN74AS240ANS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS240ANS is an octal buffer and line driver from the Texas Instruments AS logic series. It features eight inverting outputs with three-state capability, housed in a 20-pin PDIP package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 6.2 ns, a low-level output current of 64 mA, and a high-level output current of -15 mA. It functions within a temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight inverting signal paths with independent control for data direction management.
• Features three-state outputs that allow connection to shared buses without signal contention.
• Delivers high drive strength suitable for driving heavy capacitive loads or transmission lines.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address buffering in computer systems
• Clock distribution networks
• Bus-oriented transmissions

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'ANS' corresponds to the PDIP-20 through-hole package variant rather than surface-mount options. Confirm RoHS compliance status as indicated in official documentation. Ensure the ordering part number matches the required lead time and manufacturing lot specifications before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bipolar AS-series speed and drive current are required over CMOS alternatives. The SN74AS240ANS is appropriate for designs needing 64 mA sink capability. Consider thermal dissipation requirements due to higher static current consumption compared to HC or HCT families during selection.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS240A family of octal buffers. It serves as a high-speed alternative to standard TTL logic, offering faster switching times. The AS series utilizes advanced Schottky technology to achieve performance levels between standard TTL and ALS families while maintaining compatible pinouts.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include the SN74AS240ADW (SOIC package) or SN74AS240ANSR (tape and reel). Cross-family replacements like SN74ALS240 offer similar functionality but with different electrical characteristics and speed profiles.