74LVC2244AD,112

Overview

The Nexperia 74LVC2244AD,112 is an octal buffer and line driver featuring 3-state outputs with integrated 30 Ω series termination resistors. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs tolerant up to 5.5 V. The device includes IOFF circuitry for partial power-down applications. It utilizes Schmitt-trigger inputs to handle slow signal transitions and provides two independent output enable controls.

Feature Summary

• Integrated 30 Ω series termination resistors for signal integrity
• IOFF circuitry prevents backflow current during partial power-down
• Schmitt-trigger action ensures tolerance for slow input rise and fall times
• Direct interface capability with TTL logic levels

Applications

• Mixed 3.3 V and 5 V environment translation
• Partial power-down mode operation
• Buffering and line driving in high-speed digital systems

Procurement Notes

Verify the specific ordering suffix '112' corresponds to the SO20 plastic small outline package (SOT163-1) as defined in the official Nexperia documentation. Confirm that the required temperature range covers -40 °C to +125 °C for your application environment. Ensure compatibility with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 before finalizing procurement specifications.

Selection Notes

Select this component when 5 V tolerant inputs are required alongside a 3.3 V or lower supply voltage. The integrated 30 Ω termination eliminates external components for impedance matching. Verify that the package dimensions for the SO20 variant fit the PCB layout constraints. Consider the IOFF feature if the system requires protection against back-powering during standby states.

Part Context

This part belongs to the 74LVC2244A family of octal buffers. The AD suffix specifically denotes the SO20 package type. It shares functional characteristics with other LVC series drivers but is distinguished by its built-in series termination and 5 V input tolerance capabilities.

Replacement Considerations

Check for equivalent parts from other manufacturers offering 5 V tolerance and integrated termination. Verify pinout compatibility and electrical specifications match the original requirements.