SN74HCT74NSR

Flip Flops Overview

The SN74HCT74NSR is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments. It features independent clear and preset inputs for each flip-flop. The device operates within a supply voltage range of 4.5 V to 5.5 V. It is housed in a 14-pin Small Outline Integrated Circuit (SOIC) package with a width of 0.209 inches. The component supports an operating temperature range from -40°C to +85°C. It utilizes HCT CMOS technology, ensuring TTL-compatible inputs while maintaining low power consumption typical of CMOS devices.

Flip Flops Feature Summary

• Dual configuration containing two independent D-type flip-flops
• Positive-edge triggering mechanism synchronized with clock input
• Independent active-low clear and active-high preset control inputs
• TTL-compatible logic levels for direct interface with digital systems

Flip Flops Applications

• Data storage and register circuits in digital systems
• Shift register implementations for serial-to-parallel conversion
• Frequency division and counter circuits
• State machine implementation in sequential logic design

Flip Flops Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and environmental compliance. Confirm that the SOIC-14 package dimensions match the target PCB footprint requirements. Check for any recent product change notifications regarding lead frame material or assembly location changes. Ensure the selected variant meets the required industrial temperature grade specifications for the intended application environment.

Flip Flops Selection Notes

Select this component when a dual D-flip-flop solution with TTL-compatible inputs is required. The HCT series ensures compatibility with standard 5V logic families. Consider the 14-pin SOIC package for surface-mount assembly constraints. Evaluate the propagation delay characteristics against system timing requirements. Verify that the clear and preset functionality aligns with the desired reset and initialization logic states for the circuit design.

Flip Flops Part Context

This part belongs to the SN74HCT family of high-speed CMOS logic integrated circuits. The family provides performance comparable to the older LS-TTL series but with lower power consumption. The SN74HCT74 specifically addresses applications requiring multiple flip-flops in a single package. It is widely used in general-purpose digital electronics where reliable data storage and transfer are necessary.

Flip Flops Replacement Considerations

The SN74HCT74NSRE4 is a verified equivalent part number offering identical electrical and mechanical specifications. Cross-reference with other manufacturers' HCT74 equivalents only if pinout and voltage compatibility are confirmed. Ensure any substitute maintains the same SOIC-14 package outline and thermal characteristics.