MM74HC151MTC Equivalent & Substitute Parts

Part Overview

The MM74HC151MTC is a 1 x 8:1 multiplexer logic IC manufactured by onsemi in 16-TSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The 74HC151 series provides data selection and multiplexing functionality across the 2V to 6V supply voltage range with single supply operation.

Substiute Parts

MM74HC151MTC

onsemiIn Stock: 2478MM74HC151MTC Datasheet

Current PartRFQ

MC74HC151ADTR2G

onsemiIn Stock: 1938MC74HC151ADTR2G Datasheet

DirectRFQ

SN74HC151PW

Texas InstrumentsIn Stock: 1219SN74HC151PW Datasheet

DirectRFQ

SN74HC151PWR

Texas InstrumentsIn Stock: 4140SN74HC151PWR Datasheet

DirectRFQ

SN74HC151PWT

Texas InstrumentsIn Stock: 1182SN74HC151PWT Datasheet

DirectRFQ

74HC151PW,118

Nexperia USA Inc.In Stock: 1319674HC151PW,118 Datasheet

SimilarRFQ

74HC151PW-Q100,118

Nexperia USA Inc.In Stock: 611574HC151PW-Q100,118 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MM74HC151MTC is determined by the following criteria:

Electrical Compatibility: All substitute parts maintain the 1 x 8:1 multiplexer circuit configuration, 2V to 6V single supply voltage operation, and 16-TSSOP package footprint. Output current specifications vary between manufacturers (5.2mA or 7.8mA for high/low), but all parts function within the same logic family.

Mechanical Compatibility: All listed substitutes use identical 16-TSSOP surface mount packaging with 0.173" width and 4.40mm dimensions, ensuring PCB layout compatibility.

Compliance & Status: Substitutes are categorized as direct replacements (functionally equivalent across all parameters) or similar parts (same function with extended temperature or automotive qualification). Product status ranges from active to discontinued, affecting availability and long-term sourcing.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74HC151ADTR2G (onsemi) is the direct equivalent with active product status, extended operating temperature range (-55°C ~ 125°C), and ROHS3 compliance. This part maintains the same output current specification as the original MM74HC151MTC and is available in tape and reel packaging.

Alternative from Active Inventory: SN74HC151PWR (Texas Instruments) provides active product status with identical operating temperature range to the original part (-40°C ~ 85°C). Higher output current (7.8mA vs. 5.2mA) may require circuit verification for applications with tight current budgets.

Extended Temperature Option: 74HC151PW,118 or 74HC151PW-Q100,118 (Nexperia USA Inc.) offer extended operating temperature to -40°C ~ 125°C with matching output current to the original part. The Q100 variant includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.

Discontinued Parts: SN74HC151PW and SN74HC151PWT are listed as discontinued at DiGi Electronics and should be avoided for new designs requiring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC151PWR as a direct replacement for MM74HC151MTC?

A: Yes. Both parts share the 1 x 8:1 multiplexer configuration, 2V to 6V supply voltage, 16-TSSOP package, and -40°C ~ 85°C operating temperature. The higher output current specification (7.8mA vs. 5.2mA) is not a limitation for standard applications and provides additional drive capability.

Q: What is the difference between 74HC151PW,118 and 74HC151PW-Q100,118?

A: Both are manufactured by Nexperia with identical electrical specifications and extended temperature range (-40°C ~ 125°C). The Q100 variant includes AEC-Q100 automotive qualification, required only for automotive applications. Standard industrial applications can use either part.

Q: Is the MC74HC151ADTR2G compatible with the original MM74HC151MTC?

A: Yes. The MC74HC151ADTR2G maintains all electrical parameters of the original part with identical output current (5.2mA) and package footprint. The extended temperature range (-55°C ~ 125°C) provides additional operational margin without affecting compatibility.

Q: Why do some substitutes have higher output current ratings?

A: Texas Instruments SN74HC151 variants specify 7.8mA output current compared to 5.2mA for onsemi and Nexperia parts. Both specifications meet the 74HC151 logic family standard and are functionally compatible. Higher current capability provides additional load-driving margin in the same package.

Q: Can I mix different manufacturers in the same design?

A: Yes. All listed parts conform to the 74HC151 logic family standard with identical pinout, package, and functional behavior. Mixing manufacturers is acceptable provided the operating temperature and supply voltage requirements of your application fall within the specified ranges of all selected parts.

Q: What packaging options are available?

A: All substitutes use 16-TSSOP surface mount packaging. Tape & Reel (TR) packaging is available from onsemi and Nexperia for high-volume production. Texas Instruments offers Cut Tape (CT) & Digi-Reel® and Tube packaging options.