74LVQ374QSCX

Overview

The onsemi 74LVQ374QSCX is an octal D-type flip-flop featuring positive-edge triggering and three-state outputs. It operates within a supply voltage range of 2V to 3.6V, supporting low-voltage digital applications. The device exhibits a maximum propagation delay of 13ns at 3.3V with 50pF load and a clock frequency capability of 75MHz. Static current consumption is specified at 40µA. It is housed in a 20-LSSOP package (0.154" width) and supports surface-mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops within a single integrated circuit.
• Positive-edge triggering mechanism ensures data capture occurs specifically on the rising clock transition.
• Three-state output architecture allows direct bus driving capabilities without external buffering requirements.
• Low quiescent current design optimizes power efficiency for battery-operated or energy-constrained systems.

Applications

• Parallel-to-serial data conversion circuits requiring reliable edge-triggered storage.
• High-speed buffer stages for digital signal processing interfaces.
• General-purpose register arrays in embedded microcontroller peripheral expansions.
• Timing synchronization logic for asynchronous data transfer between domains.

Procurement Notes

Verify component authenticity through authorized distribution channels due to discontinued status. Confirm package integrity upon receipt, as LSSOP components are sensitive to mechanical stress during handling. Cross-reference datasheet revisions to ensure compatibility with existing design specifications. Validate thermal performance under actual operating conditions despite rated limits. Maintain strict ESD precautions throughout assembly processes to prevent latent damage to CMOS input structures.

Selection Notes

Evaluate voltage compatibility carefully as the 2V to 3.6V range excludes standard 5V logic environments. Assess propagation delay constraints against system timing budgets, noting the 13ns specification at 3.3V. Consider pin count and package dimensions relative to PCB layout restrictions. Compare static current requirements against overall system power management strategies. Review alternative active components if long-term supply assurance is critical for production continuity.

Part Context

This component belongs to the 74LVQ series, representing low-voltage quad/octal logic functions optimized for modern portable electronics. The LVQ family bridges performance gaps between legacy TTL and newer ultra-low-voltage standards. Designed for general-purpose digital applications, it offers robust switching characteristics while maintaining minimal power consumption. The specific QSCX suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Replacement Considerations

MC74LVX374DTR2G serves as a documented substitute option within the manufacturer portfolio.