74VHC273FT

Overview

The Toshiba 74VHC273FT is a high-speed CMOS D-type flip-flop featuring eight independent positive-edge-triggered stages with an asynchronous active-low reset. It operates within a supply voltage range of 2.0 V to 5.5 V, ensuring compatibility with standard logic families. The device exhibits a maximum propagation delay of 4.2 ns and provides output drive capabilities of 8 mA for both high and low states. Packaged in a compact 20-TSSOP format, it supports surface-mount installation and functions reliably across an extended temperature range.

Feature Summary

• Eight independent D-type flip-flops with positive-edge triggering
• Asynchronous active-low reset function for immediate state clearing
• High-speed operation with minimal propagation delay
• Robust output drive capability suitable for direct interface applications

Applications

• Parallel data storage and buffering in digital systems
• Shift register configurations for serial-to-parallel conversion
• Timing control circuits requiring precise edge-triggered operations
• General-purpose sequential logic processing modules

Procurement Notes

Verify the specific suffix 'FT' corresponds to the TSSOP-20 package and reel packaging configuration required for your assembly process. Confirm that the operating voltage requirements align with your system's power rails, as the device supports a wide range from 2V to 5.5V. Ensure thermal management strategies account for the specified operating temperature limits during continuous operation.

Selection Notes

Select this component when designing circuits requiring multiple synchronized data latches within a single integrated package. The 74VHC series offers superior speed compared to standard HC logic while maintaining low power consumption. Consider the 20-TSSOP footprint constraints and ensure adequate PCB space for the selected package dimensions during layout planning.

Part Context

This part belongs to Toshiba's 74VHC logic family, which utilizes silicon gate CMOS technology for enhanced performance. The 74VHC273 serves as a fundamental building block for sequential logic design, providing reliable data retention and transfer capabilities. It complements other components in the same series, such as decoders and multiplexers, to form complete digital control systems.

Replacement Considerations

Cross-reference with equivalent parts from other manufacturers offering 8-bit D-type flip-flops in TSSOP-20 packages. Verify pinout compatibility and electrical specifications, particularly supply voltage ranges and output current capabilities, before substituting. Ensure that any alternative component maintains the same asynchronous reset functionality and propagation delay characteristics.