74LVC244APW/AUJ

Overview

The Nexperia 74LVC244APW/AUJ is an octal buffer and line driver featuring three-state outputs, housed in a TSSOP20 package (SOT360-1). It operates on a supply voltage range of 1.2 V to 3.6 V with inputs tolerant up to 5.5 V. The device contains two independent four-bit buffers controlled by separate output enable inputs (1OE and 2OE). It includes IOFF circuitry for partial power-down protection and Schmitt-trigger action at all inputs.

Feature Summary

• IOFF circuitry prevents backflow current during partial power-down mode
• Schmitt-trigger inputs provide tolerance for slow signal transitions
• Outputs assume high-impedance state when enabled inputs are HIGH

Applications

• Partial power-down applications requiring IOFF support
• Mixed 3.3 V and 5 V logic environments
• Data bus isolation and buffering

Procurement Notes

Verify the specific suffix 'AUJ' against official Nexperia documentation, as standard datasheets list 'PW' for the TSSOP20 variant. Confirm RoHS compliance and temperature ratings match project requirements. Ensure ordering information aligns with the latest product data sheet revision.

Selection Notes

Select this component for designs requiring low-power CMOS buffering with wide voltage compatibility. The TSSOP20 package suits space-constrained surface-mount layouts. Verify that input transition rates fall within specified limits for reliable operation across the full temperature range.

Part Context

This part belongs to the 74LVC244A family of octal buffers manufactured by Nexperia. It shares functional characteristics with other variants like the SO20 package version but differs in physical footprint. The AUJ suffix indicates specific manufacturing or packaging details defined by the supplier.

Replacement Considerations

Cross-reference with 74LVC244AD for SO20 package alternatives. Check 74LVCH244A variants if bus hold functionality is required. Verify pinout compatibility before substituting.