SN74F240DBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F240DBR is an octal buffer and line driver from the Texas Instruments SN74F series. It features inverting logic with three-state outputs, housed in a 20-pin SSOP 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 8 ns at 5 V, a high-level output current of -15 mA, and a low-level output current of 64 mA. It supports through-hole or surface-mount installation styles depending on the specific variant configuration, with a standard operating temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffering architecture providing eight independent signal paths for data transmission.
• Three-state output capability allowing multiple drivers to share bus lines without interference.
• Inverting logic function suitable for signal phase adjustment and line driving applications.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus buffering in digital systems
• Clock distribution networks requiring signal inversion
• Memory interface circuits for address and data lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact suffix against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure the ordering code matches the required SSOP-20 form factor. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Cross-reference the full part number with official distributor catalogs to avoid substitution errors.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require octal buffering with active-low enable control. Compare propagation delays and drive strengths against other F-series variants if higher speed or different current capabilities are needed. Ensure the power supply voltage remains strictly within the 4.5 V to 5.5 V window to maintain timing integrity.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the SN74F family of fast TTL logic devices. It shares functional similarities with the SN74F241 (non-inverting) and SN74F244 (dual four-input). The DBR suffix typically denotes a specific surface-mount packaging option within the broader SN74F240 product line.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AS240ADW and SN74BCT240DW are listed as parameter-equivalent alternatives in public records.