74ABT2244CSJX

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ABT2244CSJX is an octal buffer and line driver belonging to the 74ABT logic series. It features non-inverting outputs with integrated 25-ohm series resistors designed for signal integrity. The device provides three-state outputs and operates within a standard voltage range typical for ABT technology. It is housed in a 20-SOIC package and is currently classified as obsolete by the manufacturer.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates 25-ohm series resistors in the output path to minimize signal reflections and ringing on transmission lines.
• Provides high-speed buffering capabilities suitable for demanding bus-oriented applications.
• Features three-state outputs that allow multiple drivers to share a common bus without contention.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address and data bus driving
• Clock signal distribution
• Bus-oriented transmitter and receiver circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Fairchild Semiconductor. Sourcing new original parts from authorized distributors is not possible. Engineers must verify the authenticity of any available surplus stock through rigorous inspection processes. Procurement should focus on identifying qualified replacement components rather than attempting to source this specific discontinued part number.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Designers requiring similar functionality should evaluate current production alternatives within the 74ABT family or modern successors. Key selection criteria include verifying compatible supply voltages, ensuring equivalent propagation delays, and confirming package footprint compatibility. The presence of internal series resistors is a distinct feature; substitutes must be checked to determine if external resistors are required to achieve identical signal integrity performance.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT2244CSJX is part of the broader 74ABT logic family, which combines the speed of Advanced BiCMOS Technology with CMOS compatibility. This specific model distinguishes itself from standard buffers like the 74ABT244 by including built-in series resistance. The 'CSJX' suffix indicates the specific tape-and-reel packaging configuration used during its active production lifecycle.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include SN74ABT2244ADW. Designers should verify pinout compatibility and electrical specifications against the original datasheet before implementing any cross-brand substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the primary function of the internal resistors in the 74ABT2244CSJX?

The integrated 25-ohm series resistors are designed to dampen signal reflections and reduce ringing on high-speed transmission lines, improving overall signal integrity.

Is the 74ABT2244CSJX currently in production?

No, the 74ABT2244CSJX is listed as an obsolete part and is no longer manufactured by Fairchild Semiconductor.