74HC4040D,652 Equivalent & Substitute Parts

Part Overview

The 74HC4040D,652 is a 12-bit binary counter IC manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This logic component features asynchronous reset, negative edge triggering, and operates across a 2V to 6V supply range with a maximum count rate of 98 MHz. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

74HC4040D,652

Nexperia USA Inc.In Stock: 336574HC4040D,652 Datasheet

Current PartRFQ

MC74HC4040ADR2G

onsemiIn Stock: 7162MC74HC4040ADR2G Datasheet

DirectRFQ

CD74HC4040M96

Texas InstrumentsIn Stock: 1646CD74HC4040M96 Datasheet

SimilarRFQ

MC74HC4040ADG

onsemiIn Stock: 2841MC74HC4040ADG Datasheet

SimilarRFQ

SN74HC4040D

Texas InstrumentsIn Stock: 1920SN74HC4040D Datasheet

SimilarRFQ

SN74HC4040DR

Texas InstrumentsIn Stock: 2194SN74HC4040DR Datasheet

SimilarRFQ

SN74HC4040DT

Texas InstrumentsIn Stock: 1323SN74HC4040DT Datasheet

SimilarRFQ

SN74HC4040NSR

Texas InstrumentsIn Stock: 2256SN74HC4040NSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC4040D,652 is determined by the following critical parameters:

• Logic Type & Function: Binary counter, 12-bit, up-counting, negative edge triggered, asynchronous reset
• Electrical Compatibility: Supply voltage range 2V ~ 6V, operating temperature range, count rate capability
• Package Compatibility: 16-SOIC surface mount package with matching pin configuration
• Compliance & Certification: ROHS3 compliance, MSL Level 1, REACH unaffected status

Substitute parts are grouped into two categories:

Direct Substitutes (Functionally Equivalent): Parts sharing identical logic specifications, package dimensions, and electrical parameters within acceptable tolerances.

Similar Substitutes (Functionally Compatible): Parts with the same base logic function and package type but with variations in count rate, temperature range, or product status that may require design verification for specific applications.

Parameter Comparison

Engineering Selection Recommendations

For Active Production (Recommended Primary Choices):

MC74HC4040ADR2G (onsemi) and SN74HC4040DR (Texas Instruments) are the preferred substitutes. Both are currently active products with full manufacturer support. MC74HC4040ADR2G offers the highest count rate (50 MHz) among active alternatives and extended temperature range (-55°C to 125°C), matching the original part's upper temperature limit. SN74HC4040DR provides active status with established supply chain availability, though with reduced count rate (33 MHz) and narrower temperature range (-40°C to 85°C).

For Extended Temperature Applications:

CD74HC4040M96 (Texas Instruments) and MC74HC4040ADG (onsemi) both support the -55°C to 125°C temperature range. CD74HC4040M96 is currently active, while MC74HC4040ADG is obsolete. For designs requiring the full temperature envelope, CD74HC4040M96 is the active alternative.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory alignment with the original 74HC4040D,652.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HC4040D,652 with SN74HC4040DR?

A: SN74HC4040DR is functionally compatible as a 12-bit binary counter with identical logic specifications and asynchronous reset. However, note the package width difference: SN74HC4040DR uses 16-SOIC (0.209" width) versus the original 0.154" width. Verify PCB footprint compatibility before substitution. The count rate is also reduced from 98 MHz to 33 MHz.

Q: What is the difference between MC74HC4040ADR2G and MC74HC4040ADG?

A: Both are onsemi 74HC4040 variants with identical electrical specifications (50 MHz count rate, -55°C to 125°C operating range, 16-SOIC package). The primary difference is product status: MC74HC4040ADR2G is active with ongoing manufacturer support, while MC74HC4040ADG is obsolete. For new designs, MC74HC4040ADR2G is the recommended choice.

Q: Does the count rate difference affect my application?

A: The original 74HC4040D,652 operates at 98 MHz maximum. Substitute parts range from 33 MHz to 50 MHz. If your design operates below the substitute part's count rate specification, substitution is valid. If your application requires the full 98 MHz capability, verify that the substitute's count rate meets your timing requirements before implementation.

Q: Are all substitutes available in the same packaging?

A: No. The original part uses 16-SOIC (0.154" width). MC74HC4040ADR2G and CD74HC4040M96 maintain this package dimension. SN74HC4040D, SN74HC4040DR, SN74HC4040DT, and SN74HC4040NSR use 16-SOIC (0.209" width). Verify PCB footprint compatibility for the wider package variants.

Q: Which substitute has the best long-term availability?

A: SN74HC4040DR (Texas Instruments) and MC74HC4040ADR2G (onsemi) are both active products with established supply chains. Both manufacturers maintain production and distribution networks for these parts, making them suitable for designs requiring long-term component availability.