SN74LS374NSR

Flip Flops Overview

The SN74LS374NSR is an octal D-type edge-triggered flip-flop manufactured by Texas Instruments in the LS logic series. It features eight independent D-type flip-flops with three-state outputs, packaged in a 20-pin SOIC (Small Outline Integrated Circuit) format for surface-mount applications. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports through-hole or surface-mount installation styles depending on the specific variant configuration. Key electrical parameters include a propagation delay of 28 ns, a high-level output current of -2.6 mA, and a low-level output current of 24 mA. It functions as a non-inverting transparent latch with TTL input compatibility.

Flip Flops Feature Summary

• Octal D-type edge-triggered flip-flop architecture with three-state outputs
• Designed for driving highly capacitive or relatively low-impedance loads
• Active-low clear functionality for immediate data reset
• Surface-mount packaging optimized for automated assembly processes

Flip Flops Applications

• Register storage in digital systems
• Data buffering between processing stages
• Parallel-to-serial conversion circuits
• Memory interface control logic

Flip Flops Procurement Notes

Verify that the ordering suffix 'SR' corresponds to the tape-and-reel packaging format rather than tube packaging. Confirm the package type is SOIC-20 with a width of 0.209 inches (5.30 mm). Ensure the component meets RoHS compliance standards required for your manufacturing process. Check for any specific quality certifications or automotive qualifications if applicable to your end-use environment. Validate pinout compatibility with existing PCB footprints before finalizing procurement.

Flip Flops Selection Notes

Select this component when an octal register with tri-state capability is required for bus-oriented architectures. The LS series offers standard speed performance suitable for general-purpose digital logic applications. Consider the SOIC package for space-constrained designs requiring surface-mount technology. Evaluate the 28 ns propagation delay against system timing requirements to ensure signal integrity. Compare power consumption characteristics with other logic families if energy efficiency is a primary design constraint.

Flip Flops Part Context

The SN74LS374NSR belongs to the Texas Instruments SN74LS374 family of octal D-type flip-flops. This family is part of the broader 74-series logic ICs, specifically utilizing Low-power Schottky (LS) technology for improved power-delay product. The NSR suffix indicates a specific reel-packaged variant of the standard SN74LS374N, maintaining identical logical functionality while differing in shipping and handling specifications for high-volume production environments.

Flip Flops Replacement Considerations

Direct substitutes include the SN74LS374N for tube-packaged equivalents. Cross-reference with other manufacturers' 74LS374 variants ensuring pinout and electrical specifications match. Verify that alternative sources maintain the same 3-state output behavior and active-low clear function. Check for any minor differences in package dimensions or thermal characteristics when sourcing from non-Texas Instruments suppliers.