CD74HC4040MT 12-Bit Binary Counter Equivalent & Substitute Parts

Part Overview

The CD74HC4040MT is a 12-bit binary counter IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component functions as a negative edge-triggered counter with asynchronous reset capability, operating across a 2V to 6V supply voltage range. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and component sourcing flexibility.

Substiute Parts

CD74HC4040MT

Texas InstrumentsIn Stock: 721CD74HC4040MT Datasheet

Current PartRFQ

CD74HC4040M96

Texas InstrumentsIn Stock: 1646CD74HC4040M96 Datasheet

Parametric EquivalentRFQ

MC74HC4040ADR2G

onsemiIn Stock: 7162MC74HC4040ADR2G Datasheet

DirectRFQ

74HC4040D,653

Nexperia USA Inc.In Stock: 520374HC4040D,653 Datasheet

MFR RecommendedRFQ

MC74HC4040ADG

onsemiIn Stock: 2841MC74HC4040ADG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC4040MT is determined by strict equivalence across the following critical parameters:

• Logic type and function (12-bit binary counter)
• Bit width and element count (12 bits, 1 element)
• Trigger mechanism (negative edge)
• Reset configuration (asynchronous)
• Supply voltage compatibility (2V to 6V)
• Package type (16-SOIC surface mount)
• Pin count and pinout alignment (16 pins)
• RoHS and environmental compliance (ROHS3 Compliant)

All substitute parts listed maintain identical functional specifications and package footprints. Variations in maximum count rate and operating temperature ranges do not affect functional substitution within the specified design parameters.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production continuity, CD74HC4040M96 is the primary equivalent, maintaining identical specifications and active product status from the original manufacturer Texas Instruments. This part provides direct functional replacement with assured long-term availability.

MC74HC4040ADR2G (onsemi) and 74HC4040D,653 (Nexperia USA Inc.) are active alternatives with enhanced performance characteristics. Both maintain full functional compatibility and ROHS3 compliance. MC74HC4040ADR2G offers increased count rate capability (50 MHz) while preserving the full temperature range. The 74HC4040D,653 provides the highest count rate (98 MHz) with a reduced lower operating temperature limit (-40°C versus -55°C).

MC74HC4040ADG (onsemi) is classified as obsolete and should not be selected for new designs despite current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can CD74HC4040M96 directly replace CD74HC4040MT in existing designs?

A: Yes. CD74HC4040M96 is a parametric equivalent with identical logic specifications, pin configuration, and package footprint. Both parts are manufactured by Texas Instruments and share the same base product number 74HC4040.

Q: What is the difference between the onsemi and Nexperia alternatives?

A: Both MC74HC4040ADR2G (onsemi) and 74HC4040D,653 (Nexperia) are functionally equivalent 12-bit binary counters in 16-SOIC packages. The primary differences are manufacturer, count rate capability, and minimum operating temperature. MC74HC4040ADR2G supports -55°C minimum temperature, while 74HC4040D,653 supports -40°C minimum. Both are ROHS3 compliant and actively produced.

Q: Does higher count rate affect substitution compatibility?

A: No. Count rate is a performance specification that does not affect functional substitution. A part with higher count rate (50 MHz or 98 MHz) is compatible with designs specified for 35 MHz operation. The counter logic, pin configuration, and electrical interface remain identical.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the 16-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and footprint compatibility.

Q: Which substitute should be selected for temperature-critical applications?

A: For applications requiring -55°C minimum operating temperature, select CD74HC4040M96 or MC74HC4040ADR2G. The 74HC4040D,653 supports only -40°C minimum temperature and is not suitable for extended low-temperature operation.

Q: Are all parts RoHS compliant?

A: Yes. All listed parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.