74LVQ273SCX

Overview

The Fairchild Semiconductor 74LVQ273SCX is an octal D-type flip-flop featuring positive edge triggering and true outputs. It operates within a supply voltage range of 2V to 3.6V, supporting clock frequencies up to 90MHz. The device exhibits a maximum propagation delay of 8.5ns at 3.3V with a 50pF load. It provides symmetrical output drive currents of 12mA for both high and low states. Quiescent current consumption is limited to 40µA. The component is housed in a 20-SSOP package and supports surface mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Positive edge triggered operation ensures data capture on the rising clock transition.
• True outputs provide non-inverted logic levels corresponding directly to input states.
• Low quiescent current design minimizes power consumption during standby conditions.

Applications

• Parallel-to-serial data conversion circuits
• Register file storage elements
• Buffer memory applications

Procurement Notes

Verify the specific manufacturer designation as Fairchild Semiconductor or its successor entities, given corporate acquisitions. Confirm the package variant matches the SCX suffix requirements for your PCB layout. Ensure compliance with RoHS directives if required by your manufacturing standards. Cross-reference the datasheet revision date to confirm parameter validity against current production specifications.

Selection Notes

Select this component when requiring an octal register with low voltage compatibility and moderate speed performance. The LVQ series offers improved switching characteristics compared to standard LV variants while maintaining low power profiles. Consider the 20-SSOP footprint constraints and thermal dissipation capabilities for dense board layouts. Evaluate the 90MHz clock limit against your system timing requirements.

Part Context

This part belongs to the 74LVQ logic family, designed for low-voltage CMOS applications. It serves as a fundamental building block for sequential logic circuits requiring parallel data storage. The octal configuration allows handling eight bits simultaneously, reducing component count in multi-bit data paths compared to single-bit alternatives.

Replacement Considerations

Direct substitutes include the ON Semiconductor MC74LVQ273SCX. Other compatible options may include equivalent parts from Texas Instruments or NXP within the same LVQ series family, provided pinouts and electrical parameters align with the original specification.