74VHC273MTR

Overview

The 74VHC273MTR is an obsolete octal D-type flip-flop manufactured by STMicroelectronics. It features a master reset function and positive-edge triggering within a single element containing eight bits. The device operates on a supply voltage ranging from 2V to 5.5V, with a maximum clock frequency of 110 MHz. Propagation delay is specified at 11ns under 5V and 50pF load conditions. Output drive capability provides 8mA for both high and low states, while static current consumption remains at 4µA. It utilizes a 20-SOIC surface-mount package.

Feature Summary

• Octal D-type flip-flop architecture with a dedicated master reset input
• Positive-edge triggered data storage mechanism
• Non-inverting output configuration for direct signal interfacing

Applications

• Parallel-to-serial data conversion circuits
• General-purpose register implementations in digital logic systems
• Data buffering applications requiring multiple bit storage

Procurement Notes

This component is officially marked as obsolete and no longer manufactured by STMicroelectronics. Procurement should focus exclusively on verified replacement part numbers listed in official substitution guides. Verify that alternative components match the required pinout, electrical specifications, and package dimensions before integration into existing designs.

Selection Notes

Designers must evaluate available cross-manufacturer alternatives due to the discontinuation of this specific part number. Selection criteria should prioritize matching the VHC logic family characteristics, including voltage range and propagation delay. Ensure the substitute component supports the required 20-pin SOIC footprint and maintains compatible output drive capabilities for the target application.

Part Context

The 74VHC273MTR belongs to the 74VHC series of high-speed CMOS logic devices produced by STMicroelectronics. This series is characterized by fast switching speeds and wide operating voltage ranges. As an octal flip-flop, it serves as a fundamental building block for sequential logic circuits requiring multi-bit state retention within standard industrial temperature ranges.

Replacement Considerations

Nexperia USA Inc. offers the 74AHC273D,118 as a similar alternative component.