74ABT2244N,112

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT2244N,112 is an octal buffer and line driver featuring 3-State outputs with integrated 30Ω series termination resistors. It operates within a DC supply voltage range of 4.5V to 5.5V. The device provides propagation delays of 1.0ns to 4.3ns at VCC=5.0V. Output drive capability is specified as +5mA for high state and -32mA for low state. Quiescent supply current (ICCZ) is typically 50μA. The component supports live insertion and extraction and includes latch-up protection exceeding 500mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates 30Ω series resistance in both High and Low output states to reduce line noise without external components
• Supports live insertion and extraction operations on bus lines
• Features power-up 3-State functionality to prevent bus contention during initialization

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type required, as the base part number corresponds to multiple physical packages including DIP-20, SO-20, SSOP-20, and TSSOP-20. Confirm that the 'N' suffix indicates the Plastic DIP package variant. Ensure compatibility with the 4.5V to 5.5V operating voltage range for the target system design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving long bus lines requiring controlled impedance termination. The internal 30Ω resistors eliminate the need for discrete series resistors. Compare against standard 74ABT244 devices if termination integration is not required. Verify that the 5.5V maximum input voltage rating aligns with the source logic levels.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, utilizing high-performance BiCMOS technology. It combines low static and dynamic power dissipation with high-speed operation. The 74ABT2244 is functionally identical to the 74ABT244-1, with the naming change reflecting industry standards for buffers with integrated termination.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly identifies the 74ABT244-1 as the same part. Other 74ABT244 variants may serve as replacements only if they include the specific 30Ω series termination resistors; standard 74ABT244 parts lack this feature.