SN74ABT2245DBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT2245DBR is an octal bus transceiver from the Texas Instruments 74ABT series, designed for high-speed data transfer. It features a single direction control pin and operates with a supply voltage range of 4.5 V to 5.5 V. The device provides TTL-compatible input and output levels with three-state outputs. Key electrical parameters include a maximum propagation delay of 3.9 ns at 50 pF load, a low-level output current of 64 mA, and a high-level output current of -32 mA. It is housed in a 20-pin SOIC package and supports an operating temperature range from -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight bidirectional data paths controlled by a single direction signal.
• High-speed performance enabled by ABT technology with low propagation delays.
• Robust drive capability supporting heavy loads through high sink and source currents.
• Three-state outputs allow direct connection to system buses without additional drivers.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed memory mapping applications
• Clock drivers and buffer circuits
• Bus-oriented architectures requiring bidirectional data flow

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SOIC-20 package and tape-and-reel packaging format as indicated by distributor listings. Confirm RoHS compliance status and ensure the component matches the required 4.5V to 5.5V operating voltage range for your specific circuit design before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with ABT speed and 5V logic compatibility is required. It is suitable for designs needing high drive strength and bidirectional control via a single pin. Ensure the PCB layout accommodates the SOIC-20 footprint and that the power supply strictly adheres to the 4.5V to 5.5V specification to maintain timing integrity.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT2245 family of octal bus transceivers. It shares functional similarities with other 74ABT series devices but is distinct from HC or LVT variants due to its specific voltage range and speed characteristics. The DBR suffix denotes the surface-mount SOIC package and reel packaging, differentiating it from tube-packaged versions like the DW variant.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ABT2245DW serves as a pin-compatible alternative in a tube package. Other 74ABT2245 variants may be considered if package type differs, but verify voltage and speed specifications match the original design requirements.