SN74ALS273NSR

Flip Flops Overview

The SN74ALS273NSR is an octal D-type flip-flop from the Texas Instruments ALS logic series, housed in a 20-pin SOIC surface-mount package. It features positive-edge triggering and includes a master clear input. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 15 ns, a high-level output current of -2.6 mA, and a low-level output current of 24 mA. It supports TTL input and output types with non-inverting polarity.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single integrated circuit.
• Positive-edge triggered operation synchronized by clock signals for precise data capture.
• Integrated master clear function allowing synchronous or asynchronous reset of all outputs.

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• General-purpose register storage applications
• Buffering digital signals in logic systems

Flip Flops Procurement Notes

Verify the specific suffix 'SR' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status as indicated by manufacturer documentation. Ensure the SOIC-20 footprint matches the target PCB design constraints. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.

Flip Flops Selection Notes

Select this component for designs requiring octal storage with moderate speed requirements typical of the ALS family. Consider the 15 ns propagation delay against system timing budgets. Evaluate the 24 mA low-level sink capability for driving loads directly. Compare against HC or HCT families if lower power consumption or different voltage compatibility is required.

Flip Flops Part Context

This part belongs to the SN74ALS273 family of octal D-type flip-flops. It shares functional characteristics with other variants such as the through-hole SN74ALS273N and the SOIC variant SN74ALS273DWR. The primary distinction lies in the package type and reel configuration, while maintaining identical logical functionality and electrical specifications across the series.

Flip Flops Replacement Considerations

SN74ALS273DWRE4

Flip Flops FAQ

What is the trigger mechanism for the SN74ALS273NSR?

The device utilizes a positive-edge trigger mechanism, capturing data on the rising edge of the clock signal.

Does the SN74ALS273NSR have an active clear input?

Yes, it includes a master clear input that resets all eight flip-flops simultaneously.