M74HC74B1R

Flip Flops Overview

The M74HC74B1R is a dual positive edge-triggered D flip-flop manufactured by STMicroelectronics using HC/UH series CMOS technology. It features complementary outputs and is housed in a 14-pin Small Outline (SOP-14) surface-mount package. The device operates within a supply voltage range of 2 V to 6 V, with a typical rated voltage of 4.5 V. It supports a wide operating temperature range from -55 °C to +125 °C, suitable for military-grade applications. The component is currently listed as discontinued.

Flip Flops Feature Summary

• Dual positive edge-triggered D flip-flop architecture
• Complementary output configuration
• Wide operating voltage range supporting 2V to 6V
• Military-grade temperature capability

Flip Flops Applications

• Data storage and register circuits
• Shift registers
• Frequency division circuits
• Digital signal processing systems

Flip Flops Procurement Notes

This component is officially classified as obsolete and no longer manufactured by STMicroelectronics. Procurement should focus on verifying the authenticity of remaining stock or identifying direct pin-compatible replacements from other manufacturers. Ensure that any substitute part meets the required SOP-14 footprint and electrical specifications for reliable integration.

Flip Flops Selection Notes

Select this component only if legacy compatibility with the HC/UH series is strictly required. Verify that the SOP-14 surface-mount package aligns with the PCB design constraints. Consider the discontinuation status when planning long-term production cycles, as availability may be limited to surplus inventory sources.

Flip Flops Part Context

Part of the M74HC74 family, which includes dual D flip-flops with complementary outputs. The 'B1' suffix typically denotes specific packaging or tape-and-reel configurations within the HC logic line. This series is designed for general-purpose digital logic applications requiring high-speed operation and low power consumption.

Flip Flops Replacement Considerations

CD74HC74E Texas Instruments

Flip Flops FAQ

What is the trigger type for the M74HC74B1R?

The device uses positive edge triggering for data capture.

Does the M74HC74B1R have complementary outputs?

Yes, each flip-flop provides both non-inverted and inverted outputs.