74LVX273SJX

Overview

The 74LVX273SJX is an octal D-type flip-flop manufactured by Fairchild Semiconductor, now part of onsemi. It features eight positive-edge-triggered D flip-flops with true outputs and three-state control. The device operates within a supply voltage range of 1.65V to 3.6V, supporting low-voltage applications. It is housed in a 20-SOIC package (0.209 inch width, 5.30mm). The component is RoHS3 compliant and designed for bus-organized system applications requiring transparent data latching.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Three-state output capability allowing direct connection to bus systems without external buffers
• Positive-edge triggering mechanism ensures precise data capture at clock transitions
• Low voltage operation compatible with 1.65V to 3.6V power supplies

Applications

• Bus-organized system data storage and transfer
• Parallel-to-serial data conversion circuits
• Memory interface buffering in low-voltage embedded systems
• Digital signal processing data path synchronization

Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or onsemi, as corporate acquisitions have affected branding. Confirm the package type is 20-SOIC with 0.209-inch width. Ensure RoHS3 compliance status matches current regulatory requirements. Check for any specific ordering suffixes that may indicate temperature range or tape-and-reel variations. Cross-reference the datasheet version to ensure accurate electrical specifications are applied.

Selection Notes

Select this component when an octal D-type flip-flop with three-state outputs is required for low-voltage logic levels. The LVX series is suitable for interfaces between 1.8V and 3.3V domains. Consider the 20-SOIC package constraints for PCB layout. Evaluate propagation delay and power consumption against system timing requirements. Ensure compatibility with existing clocking infrastructure and data line capacitance limits.

Part Context

The 74LVX273SJX belongs to the LVX family of high-speed CMOS logic devices. This family is characterized by low power consumption and wide operating voltage ranges. The 273 designation indicates an octal D-type flip-flop with positive-edge triggering. Similar parts include the 74LVX273MTCX in TSSOP packaging and other variants within the LV/LV-A/LVX/H series from Fairchild and onsemi.

Replacement Considerations

Direct substitutes include the 74LVQ273QSCX in QSOP packaging and the 74ACT273LCT in LCC-20 ceramic package. Verify pinout compatibility and electrical parameters before substitution. The 74LVX273MTCX offers identical functionality in a TSSOP-20 package. Ensure replacement parts meet the same voltage and speed requirements.