74HC4024N,652 Equivalent & Substitute Parts

Part Overview

The 74HC4024N,652 is a 7-bit binary counter IC manufactured by NXP USA Inc. in a 14-DIP through-hole package. This logic component functions as a negative edge-triggered counter with asynchronous reset capability, operating across a 2V to 6V supply range. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

74HC4024N,652

NXP USA Inc.In Stock: 97074HC4024N,652 Datasheet

Current PartRFQ

CD74HC4024E

Harris CorporationIn Stock: 1615CD74HC4024E Datasheet

DirectRFQ

CD74HC4024M

Texas InstrumentsIn Stock: 59095CD74HC4024M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74HC4024N,652 is determined by the following core electrical and mechanical parameters:

Functional Equivalence Requirements:

• Logic Type: Binary Counter
• Number of Bits per Element: 7 Bit
• Number of Elements: 1
• Direction: Up
• Trigger Type: Negative Edge
• Reset: Asynchronous
• Voltage - Supply: 2 V ~ 6 V

Mechanical Compatibility Considerations:

• Package / Case: 14-DIP or equivalent pinout-compatible packages
• Mounting Type: Through Hole or Surface Mount (with board redesign)

Performance Parameters:

• Count Rate: Minimum 35 MHz (acceptable for most applications requiring 90 MHz operation)
• Operating Temperature: -40°C ~ 125°C or -55°C ~ 125°C (both acceptable)

The substitute parts listed below maintain functional equivalence while accommodating packaging and manufacturing variations across different manufacturers.

Parameter Comparison

Engineering Selection Recommendations

CD74HC4024E (Harris Corporation): This substitute maintains identical through-hole 14-DIP packaging and pinout compatibility with the original 74HC4024N,652. The part is functionally equivalent across all core parameters. However, this part is RoHS non-compliant, which may restrict use in applications subject to RoHS regulations. The reduced count rate of 35 MHz is acceptable for applications not requiring the full 90 MHz performance of the original part.

CD74HC4024M (Texas Instruments): This substitute provides ROHS3 compliance and is recommended for applications requiring regulatory adherence. The 14-SOIC surface-mount package requires board redesign and different assembly processes compared to the through-hole 14-DIP original. The count rate of 35 MHz is functionally equivalent for most applications. This option is preferred when RoHS compliance is mandatory and surface-mount assembly is feasible.

Frequently Asked Questions (FAQ)

Q: Can I use CD74HC4024E as a direct replacement for 74HC4024N,652?

A: Yes, from a functional and pinout perspective. Both parts use the 14-DIP package with identical pin assignments. However, the CD74HC4024E is RoHS non-compliant, which may conflict with your application requirements or supply chain policies.

Q: What is the impact of the reduced count rate (35 MHz vs. 90 MHz) in the substitute parts?

A: The count rate specification indicates the maximum frequency at which the counter can operate reliably. If your application requires operation above 35 MHz, the substitute parts may not be suitable. For applications operating at or below 35 MHz, the substitutes are fully compatible.

Q: Can I use the CD74HC4024M (surface-mount) in place of the through-hole 74HC4024N,652?

A: The CD74HC4024M is functionally equivalent but requires a different package footprint (14-SOIC vs. 14-DIP). Direct board-level substitution is not possible without redesigning the PCB layout and assembly process. This option is viable only if board redesign is acceptable.

Q: Which substitute should I choose for new designs?

A: Selection depends on your specific constraints. Choose CD74HC4024E if through-hole assembly is required and RoHS compliance is not mandatory. Choose CD74HC4024M if RoHS3 compliance is required and surface-mount assembly is feasible.

Q: Are there any temperature range differences I should consider?

A: The original part operates from -40°C to 125°C, while both substitutes operate from -55°C to 125°C. The substitutes provide a wider low-temperature range, which is advantageous for extended temperature applications.