74VHC273N

Overview

The Fairchild Semiconductor 74VHC273N is an octal D-type flip-flop fabricated with advanced high-speed CMOS technology. It operates within a supply voltage range of 2.0 V to 5.5 V, featuring a maximum clock frequency of 165 MHz at 5 V and a typical propagation delay of 5.4 ns at 5 V with 50 pF load. The device provides true outputs and includes power-down protection on all inputs. It is housed in a 20-pin DIP package and maintains low power dissipation with a maximum ICC of 4 µA.

Feature Summary

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

Applications

• Parallel-to-serial data conversion circuits
• Register file storage elements
• Timing synchronization logic
• Data buffering applications

Procurement Notes

Verify the manufacturer designation for the 'N' suffix, as it typically indicates a through-hole DIP package. Confirm RoHS compliance status and specific lead finish requirements against current datasheets. Ensure the ordering part number matches the required package style and temperature range specifications for your application.

Selection Notes

Select this component when an octal register with high-speed performance and low power consumption is required. It serves as a direct pin-compatible replacement for the 74HC273 while offering improved speed characteristics. Consider the 20-pin DIP package for prototyping or legacy board designs requiring through-hole mounting.

Part Context

This component belongs to the 74VHC series of advanced high-speed CMOS logic devices. It functions as an octal D-type flip-flop, providing eight independent storage elements triggered by a single clock input. The series is designed to achieve speeds similar to equivalent Bipolar Schottky TTL while maintaining the low power advantages of standard CMOS technology.

Replacement Considerations

The 74VHC273N is pin and function compatible with the 74HC273. Cross-reference with other manufacturers such as ON Semiconductor or STMicroelectronics for identical part numbers. Verify that substitute components support the same 2.0 V to 5.5 V operating voltage range.