74ABT240DB,118

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT240DB,118 is an octal inverting buffer manufactured by Nexperia (formerly Philips Semiconductors). It features a BiCMOS construction providing high-speed performance with low power dissipation. The device includes two output enable inputs controlling four outputs each. Recommended operating conditions specify a supply voltage range of 4.5V to 5.5V and an operating temperature range from -40°C to +85°C. Propagation delay is typically 3.1ns at 5V with 50pF load. Output drive capability reaches +64mA for low state and -32mA for high state.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus interface design suitable for driving bus lines
• High output drive capability with latch-up protection exceeding 500mA
• Power-up 3-State functionality permitting live insertion and extraction

Buffers, Drivers, Receivers, Transceivers Applications

• Bus line driving applications
• Memory mapping systems
• Clock buffering and distribution

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer origin as this component was originally produced by Philips Semiconductors before the establishment of Nexperia. Confirm package type SSOP-20 matches the DB suffix. Ensure compatibility with 5V logic levels and check for obsolescence status as older ABT series parts may have limited availability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed octal buffering with strong drive current is required. It is appropriate for systems needing 3-state isolation on bidirectional buses. Consider thermal management due to high output currents. Verify that the 5V-only operation fits the system voltage constraints compared to broader range alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT logic family, known for high speed and dense integration. It serves as a successor to earlier 74S and 74LS families in high-performance digital designs. The octal configuration allows handling wide data paths efficiently within a single package, reducing board space requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes include the 74ABT240N and 74ABT240PW variants from the same manufacturer family.