74LVC2244APW/AUJ

Overview

The NXP USA Inc. 74LVC2244APW/AUJ 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 overvoltage tolerant inputs up to 5.5 V. The device includes IOFF circuitry for partial power-down mode operation, preventing backflow current. It utilizes Schmitt-trigger action at all inputs to tolerate slower rise and fall times. The component is housed in a TSSOP20 package (SOT360-1) and complies with JEDEC standards for various voltage ranges.

Feature Summary

• Integrated 30 Ω series termination resistors for signal integrity
• IOFF circuitry enables safe partial power-down mode operation
• Schmitt-trigger inputs provide tolerance for slow signal transitions
• Overvoltage tolerant inputs allow interfacing with 5 V logic devices

Applications

• Mixed 3.3 V and 5 V environment translation
• Partial power-down applications requiring backflow protection
• Bus drivers in systems with high-speed data transmission

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and temperature rating. Ensure that the procurement channel provides valid traceability for Nexperia products. Confirm compliance with RoHS directives and check for any recent product status changes or obsolescence notices directly from the supplier before finalizing orders.

Selection Notes

Select this component when designing circuits that require bus driving capabilities alongside integrated series termination to minimize reflections. The inclusion of IOFF circuitry makes it suitable for systems where partial power-down states are necessary to reduce standby power consumption. Verify that the input voltage levels align with the 5.5 V tolerance specification if interfacing with legacy 5 V logic families.

Part Context

This part belongs to the 74LVC2244A family of octal buffers and line drivers manufactured by Nexperia. The 'PW' designation indicates the TSSOP20 plastic thin shrink small outline package variant. The AUJ suffix typically denotes specific packaging or tape-and-reel configurations as defined in the manufacturer's ordering information tables.

Replacement Considerations

Direct replacements include other variants within the 74LVC2244A family such as the SO20 or DHVQFN20 packages, provided pin compatibility is maintained. Cross-vendor equivalents must be verified for identical electrical characteristics, specifically the 30 Ω termination resistance and IOFF functionality.