74ABT2244CMSA

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ABT2244CMSA is an octal buffer and line driver featuring non-inverting logic with three-state outputs. It integrates 25-ohm series resistors within the output stage to manage signal integrity. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 20-pin SSOP package for surface-mount installation. The component supports a wide operating temperature range from -40°C to +85°C, ensuring reliability in industrial environments.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates 25-ohm series resistors in the output path for enhanced signal control
• Provides eight non-inverting buffers with high-impedance three-state capability
• Designed for operation across a standard 4.5V to 5.5V power supply range

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus buffering in computer systems
• Clock distribution networks requiring controlled impedance
• Memory interface drivers for address and data lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

This specific part number is discontinued and no longer manufactured by onsemi or its predecessor entities. Verification of availability requires checking secondary market distributors for obsolete stock. Ensure that any sourced units are genuine and have not exceeded their recommended storage conditions. Confirm the exact suffix matches the original specification before integration into new designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Engineers should evaluate alternative components from current product lines due to the discontinuation status. When selecting replacements, verify compatibility with existing 3.3V or 5V logic levels if voltage translation is required. Check pinout consistency to ensure direct board-level substitution without redesigning the footprint. Review updated datasheets for changes in drive strength or propagation delay characteristics compared to the legacy ABT series.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT2244 belongs to the ABT logic family, known for advanced BiCMOS technology offering high speed and low power consumption. This specific variant distinguishes itself by including internal series resistors, which helps reduce reflections and overshoot in transmission line applications. It serves as a bridge between low-voltage logic sources and higher-capacitance loads.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the 74ABT244, though it lacks the integrated series resistors. Other compatible options may include the 74ACT244 or 74FCT244 families, depending on the required voltage level and switching speed specifications.