74VHC4040MTC Equivalent & Substitute Parts

Part Overview

The 74VHC4040MTC is a 12-stage binary counter IC manufactured by onsemi, housed in a 16-TSSOP surface mount package. This component functions as a counter element with asynchronous reset capability and negative edge triggering. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

74VHC4040MTC

onsemiIn Stock: 95974VHC4040MTC Datasheet

Current PartRFQ

SN74LV4040APW

Texas InstrumentsIn Stock: 3286SN74LV4040APW Datasheet

SimilarRFQ

SN74LV4040APWR

Texas InstrumentsIn Stock: 3238SN74LV4040APWR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC4040MTC is determined by the following critical parameters:

• Logic Type: Binary Counter with 12-bit capacity
• Package / Case: 16-TSSOP form factor
• Number of Elements: 1
• Number of Bits per Element: 12
• Reset Type: Asynchronous
• Trigger Type: Negative Edge
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts SN74LV4040APW and SN74LV4040APWR, both manufactured by Texas Instruments, satisfy all critical substitution criteria. Both parts maintain identical functional specifications, package geometry, and environmental compliance ratings.

Parameter Comparison

Engineering Selection Recommendations

SN74LV4040APWR is the primary substitute for the obsolete 74VHC4040MTC. This part carries Active product status, ensuring long-term availability and supply chain continuity. It is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, supporting both prototype and production-volume procurement workflows. ROHS3 compliance and EAR99 export classification align with the original part's regulatory profile.

SN74LV4040APW serves as a secondary substitute option. Although discontinued at DiGi Electronics, this variant maintains identical functional and electrical specifications. Selection of this part should be contingent upon inventory availability and project timeline requirements.

Both Texas Instruments substitutes operate within the voltage supply range of 2 V to 5.5 V and maintain a maximum count rate of 95 MHz across the operating temperature range of -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Are the SN74LV4040 variants pin-compatible with the 74VHC4040MTC?

A: Yes. Both substitute parts use the 16-TSSOP package with identical pin assignments, enabling direct replacement without circuit board modifications.

Q: What is the difference between SN74LV4040APW and SN74LV4040APWR?

A: Both parts are functionally identical. The primary distinction is packaging format: SN74LV4040APW is available in standard packaging, while SN74LV4040APWR is supplied in Cut Tape (CT) and Digi-Reel® formats. SN74LV4040APWR maintains Active product status, whereas SN74LV4040APW is discontinued at DiGi Electronics.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. Both SN74LV4040 variants maintain MSL 1 (Unlimited) moisture sensitivity rating, REACH Unaffected status, and EAR99 export classification, matching the original 74VHC4040MTC specifications.

Q: What is the maximum operating frequency of the substitute parts?

A: The SN74LV4040 series supports a count rate of 95 MHz across the full operating temperature range of -40°C to 85°C.

Q: Can these parts be used in new designs, or are they suitable only for legacy system support?

A: The SN74LV4040APWR carries Active product status and is suitable for both new designs and legacy system support. The SN74LV4040APW, though discontinued at DiGi Electronics, remains functionally equivalent for applications where existing inventory is available.