CD74HC73M

Overview

The CD74HC73M is a dual negative-edge-triggered J-K flip-flop manufactured by Texas Instruments using high-speed CMOS technology. It features two independent circuits within a single package, providing non-inverting outputs and an active-low reset input for each device. The component operates across a wide supply voltage range of 2 V to 6 V, ensuring compatibility with various logic families. It supports surface-mount installation in a 14-SOIC package and maintains functionality across an extended industrial temperature range from -55°C to +125°C.

Feature Summary

• Dual independent negative-edge-triggered J-K flip-flops with dedicated reset inputs
• High-speed CMOS construction compatible with LSTTL logic levels
• Wide operating voltage range supporting 2 V to 6 V supply rails

Applications

• Parallel data storage and register applications
• Frequency division and counting circuits
• Shift register configurations for serial-to-parallel conversion

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and environmental compliance status. Ensure that the procurement source provides valid traceability documentation consistent with Texas Instruments manufacturing standards. Cross-reference the part number with official distributor catalogs to confirm availability and authenticity before finalizing orders.

Selection Notes

Select this component when a design requires two independent edge-triggered memory elements in a compact surface-mount footprint. Consider the HC series characteristics for low power consumption combined with speed suitable for general-purpose digital logic. Evaluate the 14-SOIC package dimensions against PCB layout constraints and thermal management requirements for the target application environment.

Part Context

This device belongs to the Texas Instruments 74HC family of high-speed CMOS logic integrated circuits. The 74HC series utilizes silicon gate CMOS technology to achieve operating speeds comparable to LSTTL while maintaining significantly lower power dissipation. This specific model represents a standard dual J-K flip-flop configuration widely used in sequential logic design.

Replacement Considerations

CD74HC73MT

FAQ

What is the trigger mechanism for the CD74HC73M?

The device uses a negative-edge-triggered mechanism, meaning state changes occur on the falling edge of the clock signal.

Does the CD74HC73M include output tri-state capability?

No, the CD74HC73M provides standard non-inverting outputs without tri-state control; it does not feature a separate enable or disable pin for output impedance control.