74HC273D

Overview

The Toshiba 74HC273D is an 8-bit D-type flip-flop integrated circuit belonging to the 74HC CMOS logic series. It features a single circuit configuration with positive edge triggering and non-inverting outputs. The device operates within a supply voltage range of 2 V to 6 V and supports a maximum clock frequency of 67 MHz. Key electrical parameters include a propagation delay of 16 ns at 5 V, with output drive capabilities of ±5.2 mA. It is housed in a 20-pin SOIC package and functions across an industrial temperature range from -40°C to +125°C.

Feature Summary

• Provides eight independent D-type flip-flops for parallel data storage
• Utilizes positive edge-triggered operation for precise timing control
• Features non-inverting outputs for direct signal transmission

Applications

• Parallel-to-serial data conversion circuits
• General-purpose register applications
• Shift register configurations

Procurement Notes

Verify the specific manufacturer designation when sourcing, as Toshiba Semiconductor and Storage may use distinct part numbering conventions compared to legacy designations. Confirm that the procurement source provides official documentation matching the 20-SOIC package and HC logic family specifications to ensure compatibility with system requirements.

Selection Notes

Select this component for designs requiring robust CMOS performance with wide voltage tolerance. The 74HC273D is suitable for systems operating between 2 V and 6 V where moderate speed and standard drive strength are sufficient. Ensure the application environment remains within the specified -40°C to +125°C temperature limits for reliable operation.

Part Context

This component is part of the broader 74HC273 product line, which includes variants from multiple manufacturers such as onsemi and Rochester Electronics. While functionally similar, differences in packaging, exact electrical characteristics, and manufacturing processes exist between brands. The Toshiba version specifically utilizes a 20-SOIC package and adheres to the standard 74HC logic family specifications.

Replacement Considerations

Cross-referencing requires verifying pinout compatibility and electrical parameter alignment. Other manufacturers produce equivalent 8-bit D-type flip-flops under the same base model number, but package dimensions and specific timing values may vary.