74VHC273SJX

Overview

The Fairchild Semiconductor 74VHC273SJX is an octal D-type flip-flop fabricated with advanced high-speed CMOS technology. It operates within a supply voltage range of 2V to 5.5V and supports a maximum frequency of 165MHz at 5V. The device features low quiescent current (4µA max) and high noise immunity. It includes power-down protection on all inputs and offers pin-and-function compatibility with the 74HC273 standard.

Feature Summary

• Octal D-type flip-flop architecture with positive edge triggering
• High-speed operation comparable to Bipolar Schottky TTL
• Power-down protection provided on all input pins
• Pin and function compatible with 74HC273

Applications

• Parallel-to-serial data conversion circuits
• Register file storage elements in digital systems
• State machine implementation in logic designs
• Data buffering between asynchronous domains

Procurement Notes

Verify component status carefully as this part may be obsolete or discontinued by Fairchild Semiconductor. Confirm availability through authorized distributors or secondary market suppliers. Ensure the specific SJX suffix matches the required 20-SOP package configuration for your design constraints.

Selection Notes

Select this component when an octal D-type flip-flop with high-speed CMOS performance is required. It serves as a direct functional replacement for 74HC273 devices while offering improved speed characteristics. Consider the 2V to 5.5V operating range and low power dissipation requirements for your application.

Part Context

This component belongs to the VHC series of high-speed CMOS logic devices from Fairchild Semiconductor. The VHC family provides performance enhancements over standard HC logic while maintaining backward compatibility. The 74VHC273 specifically addresses applications requiring parallel data storage with fast clocking capabilities.

Replacement Considerations

The 74HC273 is a pin-compatible alternative within the same logical family. Other manufacturers produce equivalent octal D-type flip-flops under different part numbers. Verify electrical specifications and package dimensions before substituting with cross-manufacturer equivalents.