SN74AS240ADW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS240ADW is an octal buffer and line driver from the Texas Instruments AS logic series, housed in a 20-pin SOIC package. It features eight inverting inputs with three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 6.5 ns, a high-level output current of -15 mA, and a low-level output current of 64 mA. Static current is specified at 11 mA, with a maximum operating supply current of 23 mA. The component supports surface mount installation and functions reliably within an ambient temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent inverting buffer channels with dedicated three-state control for bus-oriented applications.
• Delivers high drive capability with significant low-level sink current to support heavy capacitive loads.
• Utilizes bipolar logic technology to achieve fast switching speeds suitable for high-performance digital systems.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address decoding circuits
• Clock distribution networks
• Bus-driven signal routing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DW' corresponds to the tube packaging format rather than reel or cut tape options when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the procurement channel provides valid traceability for the Texas Instruments brand. Check for any recent product change notifications that might affect pinout or electrical characteristics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bipolar speed is required over CMOS alternatives within the standard 5V logic family. The AS series offers faster propagation delays compared to standard 74LS devices but consumes more power. Consider the thermal dissipation requirements associated with the bipolar technology during continuous operation. Verify that the 20-SOIC footprint matches the target PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS240A series, representing an advanced Schottky variant of the classic octal buffer design. It serves as a high-speed interface solution between microprocessors and peripheral devices. The device maintains compatibility with standard TTL logic levels while offering improved performance metrics. It is designed for use in complex digital systems requiring reliable data transmission.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Publicly documented parameter-equivalent substitutes include the SN74F240DWR and SN74BCT240DW. These alternatives may differ in packaging style or specific electrical limits despite functional similarity.