MM74HC4514WM Equivalent & Substitute Parts

Part Overview

The MM74HC4514WM is a Decoder/Demultiplexer logic IC with 1 x 4:16 circuit configuration, manufactured by onsemi in a 24-SOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a 2V to 6V supply range with dual supply capability and is suitable for applications requiring high-speed logic decoding and demultiplexing functions.

Substiute Parts

MM74HC4514WM

onsemiIn Stock: 3239MM74HC4514WM Datasheet

Current PartRFQ

CD74HC4514M

Texas InstrumentsIn Stock: 974CD74HC4514M Datasheet

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CD74HC4514M96

Texas InstrumentsIn Stock: 2230CD74HC4514M96 Datasheet

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CD74HC4515M

Texas InstrumentsIn Stock: 1353CD74HC4515M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MM74HC4514WM are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Functional Equivalence Criteria:

• Circuit configuration: 1 x 4:16 decoder/demultiplexer topology
• Series classification: 74HC logic family
• Output current specifications: 5.2mA high and low
• Supply voltage range: 2V ~ 6V minimum overlap

Mechanical Compatibility Criteria:

• Package type: 24-SOIC (0.295", 7.50mm Width)
• Mounting type: Surface mount
• Pin count and footprint alignment

Environmental & Compliance Criteria:

• Moisture sensitivity level: MSL 1 (Unlimited)
• REACH compliance status
• ECCN and HTSUS classifications

The substitute parts CD74HC4514M, CD74HC4514M96, and CD74HC4515M meet these criteria with variations in product status, supply source configuration, and operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

CD74HC4514M96 (Texas Instruments) - Primary Substitute

This part is the recommended primary substitute due to its active product status, ensuring long-term availability and supply chain stability. It maintains full functional and mechanical compatibility with the MM74HC4514WM while offering an extended operating temperature range (-55°C ~ 125°C) and ROHS3 compliance. The single supply configuration simplifies circuit design compared to the dual supply requirement of the original part.

CD74HC4514M (Texas Instruments) - Secondary Substitute

This part provides equivalent functionality with identical electrical specifications to CD74HC4514M96. However, its Last Time Buy status indicates limited future availability. It is suitable for applications where existing inventory or design validation has already been completed.

CD74HC4515M (Texas Instruments) - Alternative Substitute

This part shares the same 1 x 4:16 circuit configuration, package, and electrical specifications. Its Last Time Buy status and alternative base product number (74HC4515 versus 74HC4514) make it suitable only when CD74HC4514M or CD74HC4514M96 are unavailable. Design verification is necessary to confirm functional equivalence in specific applications.

Frequently Asked Questions (FAQ)

Q: Can CD74HC4514M96 directly replace MM74HC4514WM without circuit modifications?

A: Yes, for applications operating within the overlapping supply voltage range (2V ~ 6V) and temperature range (-40°C ~ 85°C). The CD74HC4514M96 operates at these specifications and maintains identical pin configuration, package footprint, and electrical output characteristics. The extended operating temperature range of the substitute does not create compatibility issues.

Q: What is the difference between dual supply and single supply configuration?

A: The MM74HC4514WM specifies dual supply capability, while the Texas Instruments substitutes (CD74HC4514M, CD74HC4514M96, CD74HC4515M) operate with single supply. Both configurations support the 2V ~ 6V supply voltage range. Single supply operation simplifies power distribution design by requiring only one supply rail instead of dual rails.

Q: Why is CD74HC4514M96 preferred over CD74HC4514M?

A: CD74HC4514M96 maintains active product status, ensuring continued manufacturing and availability. CD74HC4514M is designated Last Time Buy, indicating limited future stock and eventual discontinuation. For new designs or long-term production, CD74HC4514M96 provides supply chain security.

Q: Are there any packaging differences between these substitutes?

A: All substitute parts use the 24-SOIC (0.295", 7.50mm Width) package with identical pin configuration and footprint. Packaging differences exist only in supplier delivery format (Tube, Cut Tape & Digi-Reel, or SOP designation), which do not affect circuit board assembly or electrical performance.

Q: What compliance certifications apply to these substitute parts?

A: All substitute parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating, matching the original MM74HC4514WM. The Texas Instruments substitutes additionally provide ROHS3 compliance, which may be required for certain applications or markets.

Q: Can CD74HC4515M be used as a substitute?

A: CD74HC4515M maintains functional and mechanical compatibility within the specified electrical parameters. However, its alternative base product number (74HC4515) requires design verification to confirm application-specific compatibility. Use this part only when CD74HC4514M or CD74HC4514M96 are unavailable.