SN74LVC2G79DCURE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G79DCURE4 is a dual D-type flip-flop logic integrated circuit manufactured by Texas Instruments in the 74LVC series. This device functions as a standard D-type flip-flop with 2 elements, each 1 bit, featuring positive edge triggering and non-inverted outputs. The part is currently listed as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

SN74LVC2G79DCURE4

Texas InstrumentsIn Stock: 923SN74LVC2G79DCURE4 Datasheet

Current PartRFQ

SN74LVC2G79DCUR

Texas InstrumentsIn Stock: 11065SN74LVC2G79DCUR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LVC2G79DCURE4 is determined by strict equivalence across the following critical parameters:

• Functional architecture: Dual D-type flip-flop, 2 elements, 1 bit per element
• Trigger mechanism: Positive edge triggering
• Output configuration: Non-inverted outputs
• Electrical performance: Clock frequency of 160 MHz, propagation delay of 4.5 ns @ 5V/50pF
• Supply voltage range: 1.65V ~ 5.5V
• Output drive capability: 32 mA high and low
• Package specification: 8-VFSOP (0.091", 2.30mm Width)
• Compliance certifications: ROHS3, MSL Level 1

The SN74LVC2G79DCUR meets all these criteria and is classified as a parametric equivalent. The primary distinction is product status: the DCURE4 variant is obsolete, while the DCUR variant is active.

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC2G79DCUR is a direct substitute for the SN74LVC2G79DCURE4. Both parts are ROHS3 compliant and carry MSL Level 1 rating, indicating identical environmental and regulatory compliance. The DCUR variant maintains full electrical and functional equivalence while offering the advantage of active product status, ensuring continued availability and manufacturing support from Texas Instruments.

For new designs or component replenishment, the SN74LVC2G79DCUR is the appropriate selection. Existing inventory of the DCURE4 may be utilized in applications where stock depletion is not imminent, provided that the active substitute is qualified for future procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC2G79DCUR be used as a direct replacement for the SN74LVC2G79DCURE4?

A: Yes. Both parts are electrically and functionally identical across all specified parameters, including clock frequency, propagation delay, supply voltage range, output drive capability, and package configuration. The primary difference is product status: DCURE4 is obsolete, while DCUR is active.

Q: Are there any differences in package dimensions or pin configuration?

A: No. Both parts use the 8-VFSOP package with identical dimensions (0.091", 2.30mm Width) and pin configuration. They are mechanically and electrically interchangeable at the board level.

Q: What is the significance of the product status difference?

A: The active status of the SN74LVC2G79DCUR ensures ongoing manufacturing availability, technical support, and compliance documentation from Texas Instruments. The obsolete status of the DCURE4 indicates that this variant is no longer in production and may have limited availability through distribution channels.

Q: Are both parts compliant with current environmental and regulatory standards?

A: Yes. Both the SN74LVC2G79DCURE4 and SN74LVC2G79DCUR are ROHS3 compliant and carry MSL Level 1 rating, indicating full compliance with current environmental and regulatory requirements.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. The identical package, pin configuration, and electrical specifications allow direct substitution without PCB redesign or layout modification.