M74HCT74B1R

Flip Flops Overview

The M74HCT74B1R is a dual D-type flip-flop with preset and clear functions, manufactured by STMicroelectronics using silicon gate C2MOS technology. It operates within a supply voltage range of 2V to 6V and supports a maximum frequency of 48MHz. The device features non-inverting outputs and is housed in a 14-DIP package. It includes independent clock inputs for each flip-flop and is designed for high-speed digital applications.

Flip Flops Feature Summary

• Dual configuration containing two independent D-type flip-flops
• Integrated asynchronous preset and clear control inputs
• High-speed CMOS construction utilizing C2MOS technology
• Non-inverting output structure for direct logic interfacing

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose storage elements in digital systems
• Timing and synchronization logic modules

Flip Flops Procurement Notes

This component is officially obsolete and no longer manufactured by STMicroelectronics. Procurement should focus on verified replacement part numbers from other manufacturers. Verify pin compatibility and electrical specifications before integrating substitute components into existing designs.

Flip Flops Selection Notes

Select this component for applications requiring dual edge-triggered storage with dedicated control lines. Ensure the operating voltage aligns with the 2V to 6V specification. Consider the 48MHz maximum frequency limit for timing-critical designs. Verify package availability as the original part is discontinued.

Flip Flops Part Context

The M74HCT74B1R belongs to the HCT logic family, which provides TTL-compatible input levels while maintaining CMOS low power consumption. It is part of the broader 74HCT series of digital integrated circuits, designed for robust performance in mixed-technology environments.

Flip Flops Replacement Considerations

Direct substitutes include the CD74HCT74E from Texas Instruments. Verify functional equivalence regarding pinout, voltage ranges, and propagation delays when transitioning to alternative sources due to the obsolescence of the original part.