74ABT273CSCX

Flip Flops Overview

The Fairchild Semiconductor 74ABT273CSCX is an octal D-type flip-flop belonging to the ABT logic series. It features eight edge-triggered D-type flip-flops with individual data inputs and Q outputs, sharing a common buffered clock and master reset. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 6.8 ns, a high-level output current of -32 mA, and a low-level output current of 64 mA. It is housed in a 20-pin SSOP package and supports surface-mount installation.

Flip Flops Feature Summary

• Provides eight edge-triggered D-type flip-flops for parallel data storage
• Includes buffered common clock and asynchronous master reset inputs
• Offers high drive capability with specified source and sink currents

Flip Flops Applications

• Microprocessor memory interface buffering
• Parallel data register applications
• Bus-oriented transmitter/receiver circuits

Flip Flops Procurement Notes

Verify component authenticity through authorized onsemi distributors, as Fairchild Semiconductor operations were integrated into onsemi. Confirm the specific suffix 'CSCX' corresponds to the SSOP-20 tube packaging variant. Ensure compliance with RoHS directives and check for any product change notices (PCN) related to pinout or material updates prior to final design approval.

Flip Flops Selection Notes

Select this component when high-speed octal latching is required at 5V logic levels. The ABT series offers faster performance than standard AC/ACT families while maintaining CMOS compatibility. Consider the SSOP-20 package constraints for PCB layout density. Verify that the 6.8 ns propagation delay meets system timing requirements for the target clock frequency.

Flip Flops Part Context

This part belongs to the 74ABT family of high-speed CMOS logic devices. It serves as a digital storage element within larger logic systems. The device is functionally similar to other octal D-type flip-flops like the 74AC273 but optimized for higher speed operation. It is distinct from transparent latches (e.g., 74HC373) by its edge-triggered nature.

Flip Flops Replacement Considerations

Check for direct equivalents such as the 74ABT273D or 74ABT273PW from NXP, ensuring package compatibility. Verify pin-to-pin replacement with 74FCT273 variants if TTL-compatible inputs are needed, though electrical characteristics may differ.