SN74ALS273DW

Flip Flops Overview

The SN74ALS273DW is an octal D-type flip-flop from the Texas Instruments ALS logic series, housed in a 20-pin SOIC package. It features positive-edge triggering and includes a master reset input. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 15 ns at 5 V with 50 pF load, a maximum clock frequency of 35 MHz, and static current consumption of 20 mA. Output drive capabilities are defined by a high-level output current of -2.6 mA and a low-level output current of 24 mA.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops within a single integrated circuit.
• Positive-edge clock triggering mechanism ensures data capture occurs on the rising edge of the clock signal.
• Master reset functionality allows for immediate clearing of all flip-flop outputs to a low state.

Flip Flops Applications

• High-speed digital data storage and buffering applications
• Parallel-to-serial conversion circuits
• State machine implementation in digital control systems

Flip Flops Procurement Notes

Verify that the specific part number matches the required ALS logic family characteristics rather than standard LS or HC variants. Confirm the package type is strictly SOIC-20 as specified. Ensure compliance with RoHS directives if environmental regulations apply to the final assembly. Cross-reference the manufacturer datasheet for any recent pinout or electrical specification updates before integration.

Flip Flops Selection Notes

Select this component when moderate speed performance is required alongside lower power consumption compared to standard TTL families. The ALS series offers a favorable balance between switching speed and power dissipation. Consider the 15 ns propagation delay and 35 MHz clock limit against system timing requirements. Evaluate the 20 mA static current draw for thermal management in densely packed PCB layouts.

Flip Flops Part Context

This component belongs to the SN74ALS273 product line, representing an evolution in the 74-series logic family. It utilizes Advanced Low-Power Schottky technology to achieve faster switching speeds than standard LS devices while maintaining reduced power usage. The octal architecture consolidates multiple flip-flops into a single package, simplifying board layout for wide data bus applications.

Flip Flops Replacement Considerations

SN74ALS273DWR: Identical functional logic and electrical specifications; differs only in tape-and-reel packaging format instead of tube packaging.