MM74HC165MTC Equivalent & Substitute Parts

Part Overview

The MM74HC165MTC is an 8-bit parallel-in/serial-out (PISO) shift register manufactured by onsemi in 16-TSSOP surface mount packaging. This logic component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 74HC165 series provides parallel or serial to serial data conversion functionality across a 2V to 6V supply voltage range, suitable for digital logic applications requiring data serialization.

Substiute Parts

MM74HC165MTC

onsemiIn Stock: 2199MM74HC165MTC Datasheet

Current PartRFQ

MC74HC165ADTR2G

onsemiIn Stock: 2441MC74HC165ADTR2G Datasheet

DirectRFQ

SN74HC165PW

Texas InstrumentsIn Stock: 2346SN74HC165PW Datasheet

DirectRFQ

SN74HC165PWR

Texas InstrumentsIn Stock: 5244SN74HC165PWR Datasheet

DirectRFQ

SN74HC165PWRG3

Texas InstrumentsIn Stock: 2895SN74HC165PWRG3 Datasheet

UpgradeRFQ

SN74HC165QPWREP

Texas InstrumentsIn Stock: 2887SN74HC165QPWREP Datasheet

UpgradeRFQ

SN74HC165QPWRG4Q1

Texas InstrumentsIn Stock: 1996SN74HC165QPWRG4Q1 Datasheet

UpgradeRFQ

74HC165PW,112

NXP SemiconductorsIn Stock: 304874HC165PW,112 Datasheet

SimilarRFQ

74HC165PW,118

Nexperia USA Inc.In Stock: 1779474HC165PW,118 Datasheet

SimilarRFQ

74HC165PW-Q100,118

Nexperia USA Inc.In Stock: 904274HC165PW-Q100,118 Datasheet

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SN74HC165DBR

Texas InstrumentsIn Stock: 2125SN74HC165DBR Datasheet

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SN74HC165QPWRQ1

Texas InstrumentsIn Stock: 2052SN74HC165QPWRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MM74HC165MTC is determined by the following criteria:

Core Electrical Parameters (Must Match):

• Base product number: 74HC165
• Logic type: Shift Register
• Number of bits per element: 8
• Function: Parallel or Serial to Serial
• Output type: Complementary
• Supply voltage range: 2V ~ 6V
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting type: Surface Mount
• MSL rating: 1 (Unlimited)

Acceptable Variations:

• Operating temperature range: Substitutes may exceed the main part's -40°C ~ 85°C range (extended to -40°C ~ 125°C or -55°C ~ 125°C)
• Product status: Active, Discontinued at DiGi Electronics, or Last Time Buy parts are acceptable; Obsolete status does not disqualify substitutes
• Manufacturer: onsemi, Texas Instruments, NXP Semiconductors, or Nexperia USA Inc.
• Packaging format: Cut Tape (CT) & Digi-Reel®, Tube, or Tape & Reel (TR)
• Certifications: RoHS3 compliance and automotive qualification (AEC-Q100) are optional enhancements

Non-Substitutable Variations:

• Package type: 16-SSOP (0.209", 5.30mm Width) is mechanically incompatible with 16-TSSOP and is listed as a similar part only, not a direct substitute

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (16-TSSOP Package):

For applications requiring immediate replacement of the obsolete MM74HC165MTC, the following active parts are recommended based on product status and compliance:

• SN74HC165PWR (Texas Instruments): Active status, ROHS3 compliant, extended operating temperature to 125°C, available in Cut Tape & Digi-Reel® format. Suitable for standard industrial applications.

• 74HC165PW,118 (Nexperia USA Inc.): Active status, ROHS3 compliant, extended operating temperature to 125°C, highest inventory availability (17,757 pcs), available in Cut Tape & Digi-Reel® format. Recommended for high-volume production.

• MC74HC165ADTR2G (onsemi): Active status, ROHS3 compliant, widest operating temperature range (-55°C ~ 125°C), available in Cut Tape & Digi-Reel® format. Suitable for extended temperature applications.

Automotive-Grade Alternatives:

For applications requiring AEC-Q100 qualification:

• SN74HC165QPWRG4Q1 (Texas Instruments): Active status, AEC-Q100 qualified, ROHS3 compliant, available in Tape & Reel format.

• 74HC165PW-Q100,118 (Nexperia USA Inc.): Active status, AEC-Q100 qualified, ROHS3 compliant, available in Tape & Reel format.

Package Format Considerations:

• Tube packaging (SN74HC165PW): Suitable for lower-volume or prototype applications; part is discontinued at DiGi Electronics.

• Tape & Reel (TR) packaging: Recommended for automated assembly and high-volume production.

• Cut Tape & Digi-Reel® packaging: Suitable for mixed-volume production and component kitting.

Non-Compatible Alternative:

• SN74HC165DBR (Texas Instruments): Uses 16-SSOP package (0.209", 5.30mm Width) instead of 16-TSSOP. Electrically equivalent but mechanically incompatible with 16-TSSOP footprints. Not recommended as a direct substitute without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC165DBR as a substitute for MM74HC165MTC?

A: No. Although SN74HC165DBR is electrically equivalent, it uses 16-SSOP packaging (0.209", 5.30mm Width) instead of 16-TSSOP (0.173", 4.40mm Width). The different package dimensions make it mechanically incompatible with existing PCB layouts designed for 16-TSSOP. PCB redesign would be required.

Q: What is the difference between the operating temperature ranges of the main part and substitutes?

A: The MM74HC165MTC operates from -40°C to 85°C. Most substitute parts extend the upper limit to 125°C, and MC74HC165ADTR2G extends the lower limit to -55°C. These extended ranges provide greater flexibility for applications in extreme temperature environments. If your application operates within -40°C to 85°C, any substitute part will function correctly.

Q: Are all substitute parts RoHS3 compliant?

A: Most active substitute parts are ROHS3 compliant. The NXP Semiconductors part (74HC165PW,112) does not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if this is a requirement for your application.

Q: What is the difference between standard and automotive-grade parts?

A: Automotive-grade parts (SN74HC165QPWRG4Q1 and 74HC165PW-Q100,118) carry AEC-Q100 qualification, indicating they meet automotive industry reliability and testing standards. Use automotive-grade parts only if your application requires this certification. Standard parts are suitable for industrial and consumer applications.

Q: Which substitute offers the best inventory availability?

A: 74HC165PW,118 (Nexperia USA Inc.) has the highest inventory at 17,757 pcs. This part is active, ROHS3 compliant, and available in Cut Tape & Digi-Reel® format, making it suitable for high-volume production requirements.

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

A: Yes. All substitute parts share identical electrical specifications (8-bit PISO shift register, 2V ~ 6V supply, complementary output, 16-TSSOP package). They are functionally interchangeable. However, verify that your supply chain and quality control processes accommodate multiple manufacturers if required.

Q: What packaging format should I choose for my application?

A: Choose based on your assembly process: Cut Tape & Digi-Reel® for mixed-volume production and component kitting; Tape & Reel (TR) for automated high-volume assembly; Tube for prototype or low-volume applications. All formats are electrically identical.