SN74HC74NSR

Flip Flops Overview

The SN74HC74NSR is a dual D-type flip-flop from Texas Instruments' HC logic family, housed in a 14-SOIC surface-mount package. It features positive-edge triggering with independent set and reset inputs. The device operates on a supply voltage range of 2V to 6V, supporting a maximum clock frequency of 60 MHz. Key electrical parameters include a typical propagation delay of 30ns at 6V with 50pF load, output current capabilities of ±5.2mA, and a maximum quiescent current of 4µA. It functions within an industrial temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Dual D-type edge-triggered flip-flops with complementary outputs
• Independent active-low set and reset inputs for direct control
• Wide operating voltage range compatible with 2V to 6V systems
• High noise immunity and low static power consumption

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register construction and data storage elements
• Timing and synchronization logic in digital systems
• State machine implementation and control logic

Flip Flops Procurement Notes

Verify the ordering suffix 'NSR' confirms the SOIC-14 surface-mount package and tape-and-reel packaging format. Ensure the component meets RoHS3 compliance requirements for your assembly process. Confirm that the manufacturer part number matches Texas Instruments specifications exactly to avoid pinout or electrical characteristic mismatches during integration.

Flip Flops Selection Notes

Select this component when a dual D-flip-flop solution is required in a compact surface-mount footprint. The HC series offers compatibility with standard CMOS logic levels across a wide voltage spectrum. Consider the 60 MHz maximum clock speed and 30ns propagation delay for timing-critical applications requiring moderate switching speeds.

Flip Flops Part Context

This device belongs to the SN74HC74 series, representing the high-speed CMOS variant of the industry-standard 7474 dual D-flip-flop. It provides equivalent functionality to legacy TTL devices while offering improved power efficiency and broader voltage operation. The NSR suffix specifically denotes the reel-packaged version of the standard SN74HC74N device.

Flip Flops Replacement Considerations

Direct substitutes include SN74HC74N (PDIP package) and SN74HC74DR (SOIC-14 T&R). Cross-reference with SN54HC74 for military-grade temperature ranges. Verify pin compatibility and electrical characteristics before substituting with generic 74HC74 equivalents.