SN74LS273M

Flip Flops Overview

The SN74LS273M is a high-speed octal D-type flip-flop manufactured by Motorola. It features eight independent D-type flip-flops with a common clock and an asynchronous active-low master reset input. The device utilizes LS-TTL circuitry for positive-edge triggering. It operates at a nominal supply voltage of 5V, with a specified range from 4.75V to 5.25V. The component is housed in a 20-pin SOIC package (0.209 inch width). Electrical characteristics include an output current capability of 8mA for the high state and 400µA for the low state.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops within a single monolithic package
• Positive-edge-triggered operation synchronized by a common clock signal
• Asynchronous active-low master reset input for immediate clearing of all outputs
• LS-TTL technology implementation ensuring high-speed logic performance

Flip Flops Applications

• General-purpose 8-bit register storage applications
• Data latching circuits requiring parallel-to-serial conversion interfaces
• Digital systems utilizing standard TTL logic families for state retention

Flip Flops Procurement Notes

Verify the manufacturer designation on the component marking, as this part was originally produced by Motorola but may now be sourced through other entities holding legacy rights. Confirm the package type matches the 20-SOIC specification. Ensure the device meets the required LS-TTL electrical standards for your specific application environment.

Flip Flops Selection Notes

Select this component when an octal D-type register with a common clock and asynchronous reset is required. It is suitable for designs needing high-speed data storage using standard TTL logic levels. Consider the 20-SOIC package constraints for PCB layout and ensure compatibility with 5V power supplies typical of LS-TTL systems.

Flip Flops Part Context

This component belongs to the SN54/74LS273 family of high-speed 8-bit registers. The 'LS' designation indicates Low-power Schottky TTL technology, while the '74' series denotes commercial temperature range operation. The 'M' suffix specifically identifies the 20-pin Small Outline Integrated Circuit (SOIC) package variant.

Flip Flops Replacement Considerations

Compatible substitutes include the SN74LS273DW3 from Texas Instruments and the SN74LS273JDS from Freescale (NXP). These alternatives maintain the same functional specifications and pinout configuration, allowing for direct replacement in existing designs without circuit modification.