74ABT2244D,112

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT2244D,112 is an octal buffer and line driver featuring 3-State outputs with integrated 30Ω series termination resistors. It operates on a DC supply voltage of 4.5V to 5.5V. Propagation delays are specified at 2.8ns typical (max 4.3ns) for high-to-low transitions and 3.9ns typical (max 5.6ns) for low-to-high transitions under 50pF load conditions. The device provides an output capability of +5mA/-32mA and includes power-up 3-State functionality.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus interface architecture with two independent Output Enable pins controlling four outputs each
• Integrated 30Ω series resistance in both High and Low states eliminates the need for external termination components
• Power-up 3-State mechanism ensures safe initialization during power transitions
• Inputs remain disabled during 3-State mode to prevent signal interference

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix ',112' corresponds to the 20-pin plastic SO package as documented in the Philips Semiconductors product specification. Confirm the temperature range is -40°C to +85°C. Ensure compatibility with the legacy 74ABT244-1 designation if cross-referencing older documentation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving bus lines requiring reduced line noise without external termination resistors. The dual enable structure allows flexible partitioning of the eight channels. Verify that the 30Ω internal resistance meets the specific impedance matching requirements of the target transmission lines.

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 part number reflects industry standards and is functionally identical to the 74ABT244-1.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly identifies the 74ABT244-1 as the same part. No other substitute part numbers are confirmed in the provided documentation.