74HC73N,652 Equivalent & Substitute Parts

Part Overview

The 74HC73N,652 is a dual JK-type flip-flop logic integrated circuit manufactured by NXP USA Inc., housed in a 14-DIP package. This component functions as a reset-capable, negative-edge-triggered flip-flop with complementary outputs, designed for digital logic applications requiring state storage and control. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

74HC73N,652

NXP USA Inc.In Stock: 78974HC73N,652 Datasheet

Current PartRFQ

CD74HC73E

Texas InstrumentsIn Stock: 2838CD74HC73E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC73N,652 is determined by the following critical parameters:

• Logic Function: Dual JK-type flip-flop with negative-edge triggering and complementary outputs
• Package Compatibility: 14-DIP (0.300", 7.62mm) through-hole mounting
• Electrical Specifications: Supply voltage range 2V ~ 6V, operating temperature range, output drive capability
• Base Product Series: 74HC logic family designation

The CD74HC73E from Texas Instruments satisfies all substitution criteria within these parameters. Both devices share identical functional architecture, package form factor, and electrical operating ranges, enabling direct functional replacement in applications currently using the 74HC73N,652.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC73E from Texas Instruments is a direct functional equivalent to the 74HC73N,652. Selection of the CD74HC73E is supported by the following factors:

• Product Status: The CD74HC73E maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 74HC73N,652.
• Compliance Certification: Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component substitution.
• Electrical Equivalence: Identical supply voltage range, output drive current, quiescent current, and operating temperature overlap ensure functional interchangeability in existing circuit designs.
• Package Compatibility: Both devices utilize the 14-DIP (0.300", 7.62mm) through-hole package, enabling direct socket replacement without PCB redesign.

The CD74HC73E is suitable for applications currently using the 74HC73N,652 where the specified electrical and thermal operating ranges are maintained.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC73E directly replace the 74HC73N,652 in existing designs?

A: Yes. Both devices share identical JK flip-flop architecture, complementary output configuration, negative-edge triggering, 14-DIP package form factor, and electrical operating specifications. Direct socket replacement is possible without circuit modification.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Product status—the CD74HC73E is active production while the 74HC73N,652 is obsolete; (2) Operating temperature lower limit—the CD74HC73E extends to -55°C versus -40°C for the NXP part; (3) Clock frequency rating—the 74HC73N,652 is rated to 83 MHz while the CD74HC73E is rated to 60 MHz; (4) Input capacitance—the CD74HC73E specifies 10 pF versus 4.6 pF for the NXP part. These differences do not affect functional compatibility in standard applications.

Q: Are there any package considerations when substituting these parts?

A: No. Both devices use identical 14-DIP (0.300", 7.62mm) through-hole packaging. Pin assignments, spacing, and mounting requirements are identical, eliminating package-related compatibility concerns.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 74HC73N,652 and CD74HC73E are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for component substitution.

Q: Which part should be selected for new designs?

A: The CD74HC73E should be selected for new designs. As an active production part from a major manufacturer, it provides superior long-term availability and supply chain reliability compared to the obsolete 74HC73N,652.