74LVT2244DB,118

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74LVT2244DB,118 is an octal buffer and line driver featuring 3-state outputs. It operates within a supply voltage range of 2.7 V to 3.6 V and accepts input voltages up to 5.5 V. The device provides output drive capabilities of +12 mA and -12 mA. It incorporates internal 30 Ω series termination resistors in both HIGH and LOW states to reduce line noise. Propagation delays are specified at 4.4 ns maximum for LOW-to-HIGH transitions and 4.1 ns maximum for HIGH-to-LOW transitions at 3.0 V to 3.6 V. The component utilizes BiCMOS technology and is housed in an SO20 plastic small outline package (SOT163-1).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated 30 Ω series termination resistors in output stages to minimize signal reflections and line noise.
• Bus hold circuitry on data inputs eliminates the requirement for external pull-up resistors to define unused logic states.
• IOFF circuitry enables partial power-down mode operation by disabling outputs to prevent damaging backflow currents.
• Overvoltage tolerant inputs allow direct interfacing with 5 V systems while operating at lower supply voltages.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers requiring controlled impedance and noise reduction.
• Clock distribution networks utilizing integrated termination.
• Bus receivers and transmitters in mixed 3.3 V and 5 V environments.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix '118' corresponds to the standard tape-and-reel packaging configuration provided by Nexperia. Confirm that the SO20 package variant aligns with PCB footprint requirements. Ensure design compliance with the specified ambient temperature range of -40 °C to +85 °C. Validate that the 5.5 V input tolerance meets system interface specifications without exceeding absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when applications demand integrated termination resistors to simplify board layout and improve signal integrity. The device is suitable for designs requiring bus hold functionality to manage floating inputs securely. Consider the BiCMOS speed characteristics for high-frequency clock or data bus applications. Verify that the 3.3 V nominal supply voltage matches the target system architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74LVT logic family, designed for low-voltage TTL-compatible operations. The 74LVT2244 specifically addresses noise sensitivity in high-speed digital buses through its built-in termination features. It serves as a bridge between 3.3 V logic domains and 5 V tolerant interfaces, offering robust performance in mixed-voltage system architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.