74LV74D,112 Equivalent & Substitute Parts

Part Overview

The 74LV74D,112 is a dual D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This device functions as a 2-element D-type flip-flop with complementary outputs, set/preset and reset capabilities, and positive edge triggering. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74LV74D,112

Nexperia USA Inc.In Stock: 76474LV74D,112 Datasheet

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74LVX74M

Fairchild SemiconductorIn Stock: 225374LVX74M Datasheet

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MC74LVX74DR2G

onsemiIn Stock: 5223MC74LVX74DR2G Datasheet

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SN74LV74AD

Texas InstrumentsIn Stock: 4001SN74LV74AD Datasheet

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SN74LV74ADR

Texas InstrumentsIn Stock: 3659SN74LV74ADR Datasheet

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SN74LV74ANSR

Texas InstrumentsIn Stock: 6228SN74LV74ANSR Datasheet

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SN74LV74AQDRG4Q1

Texas InstrumentsIn Stock: 3455SN74LV74AQDRG4Q1 Datasheet

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SN74LV74AQDRQ1

Texas InstrumentsIn Stock: 5675SN74LV74AQDRQ1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LV74D,112 is determined by the following critical parameters:

• Functional equivalence: D-type flip-flop with 2 elements, 1 bit per element, complementary outputs, positive edge triggering, and set/preset/reset capability
• Package compatibility: 14-SOIC surface mount package (physical dimensions must match or be compatible with PCB layout)
• Voltage supply range: Must support the required operating voltage window
• Output drive capability: Current sourcing and sinking capacity for the application
• Propagation delay: Maximum timing specifications for clock-to-output transitions
• Operating temperature range: Must cover the required thermal environment
• Compliance certifications: RoHS3 compliance and MSL rating for manufacturing processes

Substitute parts are grouped into two categories based on voltage supply range and performance characteristics:

Group 1 (74LVX Series): Lower voltage operation (2V ~ 3.6V), reduced propagation delay, lower quiescent current, reduced output drive capability. Suitable for 3.3V logic systems.

Group 2 (74LV Series): Extended voltage operation (2V ~ 5.5V), higher propagation delay tolerance, standard output drive capability. Suitable for mixed-voltage or 5V logic systems.

Parameter Comparison

Engineering Selection Recommendations

For 5V Logic Systems with Extended Temperature Range:

SN74LV74ADR, SN74LV74ANSR, SN74LV74AQDRG4Q1, and SN74LV74AQDRQ1 are direct functional replacements. All are manufactured by Texas Instruments in the 74LV series with identical electrical characteristics to the 74LV74D,112. These parts support the full 2V ~ 5.5V supply voltage range and -40°C ~ 125°C operating temperature window. SN74LV74ADR and SN74LV74ANSR are commercial-grade parts with active product status. SN74LV74AQDRG4Q1 and SN74LV74AQDRQ1 are automotive-grade parts qualified to AEC-Q100, suitable for applications requiring automotive reliability standards.

Package Consideration for SN74LV74ANSR:

SN74LV74ANSR uses a 14-SOIC package with 5.30mm width (0.209") compared to the standard 3.90mm width (0.154") of other substitutes. This wider package may require PCB layout verification before selection.

For 3.3V Logic Systems:

74LVX74M (Fairchild Semiconductor) and MC74LVX74DR2G (onsemi) are suitable for 3.3V-only applications. Both operate within 2V ~ 3.6V supply range with reduced propagation delay and lower quiescent current. These parts are not suitable for 5V operation and have a reduced operating temperature range of -40°C ~ 85°C, which does not cover the full 125°C upper limit of the original part.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, consistent with the original 74LV74D,112. Automotive applications requiring AEC-Q100 qualification should select SN74LV74AQDRG4Q1 or SN74LV74AQDRQ1.

Frequently Asked Questions (FAQ)

Q: Can I use 74LVX74M or MC74LVX74DR2G as a direct replacement for 74LV74D,112?

A: These parts are functionally equivalent but operate within a reduced voltage range (2V ~ 3.6V). They are suitable only if your application operates exclusively at 3.3V. If your system requires 5V operation or the extended voltage range of 1V ~ 5.5V, use the 74LV series substitutes instead.

Q: What is the difference between SN74LV74AD and SN74LV74ADR?

A: Both are Texas Instruments 74LV series parts with identical electrical specifications. SN74LV74AD is packaged in Tube, while SN74LV74ADR is packaged in Cut Tape (CT) & Digi-Reel. SN74LV74AD is discontinued at DiGi Electronics, making SN74LV74ADR the preferred active alternative.

Q: Why does SN74LV74ANSR have a different package width?

A: SN74LV74ANSR uses a 14-SOIC package with 5.30mm width instead of the standard 3.90mm width. While functionally identical, the wider package may not fit existing PCB footprints designed for the narrower variant. Verify PCB layout compatibility before substitution.

Q: Are automotive-grade parts (SN74LV74AQDRG4Q1, SN74LV74AQDRQ1) backward compatible with commercial applications?

A: Yes. Automotive-grade parts with AEC-Q100 qualification meet or exceed commercial-grade specifications. They can be used in commercial applications but may have higher cost. Use commercial-grade parts (SN74LV74ADR, SN74LV74ANSR) for non-automotive applications unless automotive qualification is required.

Q: What is the propagation delay difference between the original part and substitutes?

A: The 74LV74D,112 has 17ns propagation delay at 5V. Texas Instruments 74LV substitutes (SN74LV74AD, SN74LV74ADR, SN74LV74ANSR, SN74LV74AQDRG4Q1, SN74LV74AQDRQ1) have 9.3ns at 5V, providing faster switching. Fairchild 74LVX74M and onsemi MC74LVX74DR2G have 13.2ns at 3.3V. Verify timing requirements for your application before selection.

Q: Do all substitutes maintain the same output drive capability?

A: No. The 74LV series substitutes maintain 12mA output drive (matching the original). The 74LVX series substitutes provide only 4mA output drive. If your application requires 12mA output current, use 74LV series parts only.

Q: Are all substitutes RoHS3 compliant?

A: All listed substitutes except 74LVX74M are explicitly RoHS3 compliant. 74LVX74M RoHS status is not specified in the provided data. Verify RoHS compliance documentation if required for your application.