SN74LVC2G74YZAR Equivalent & Substitute Parts

Part Overview

The SN74LVC2G74YZAR is a single D-type flip-flop logic integrated circuit manufactured by Texas Instruments, part of the 74LVC series. This device features complementary outputs, positive edge triggering, and operates across a wide supply voltage range of 1.65V to 5.5V. The part is currently classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

SN74LVC2G74YZAR

Texas InstrumentsIn Stock: 1131SN74LVC2G74YZAR Datasheet

Current PartRFQ

SN74LVC2G74YZPR

Texas InstrumentsIn Stock: 45286SN74LVC2G74YZPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LVC2G74YZAR is determined by strict equivalence across the following critical parameters:

• Functional Architecture: Single D-type flip-flop with 1 element and 1 bit per element
• Output Configuration: Complementary outputs with positive edge triggering
• Electrical Performance: Clock frequency of 140 MHz, propagation delay of 5.4 ns @ 5V/50pF, output drive capability of 32 mA
• Supply Voltage Range: 1.65V to 5.5V operation
• Quiescent Current: 10 µA maximum
• Package Type: 8-XFBGA, DSBGA surface mount configuration
• Compliance Standards: ROHS3 compliant, REACH unaffected status

The substitute part SN74LVC2G74YZPR maintains identical electrical and functional specifications while differing only in packaging format (Tape & Reel versus individual unit packaging) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC2G74YZPR is the direct functional equivalent for the obsolete SN74LVC2G74YZAR. Selection of the substitute part is based on the following engineering criteria:

Product Status: The SN74LVC2G74YZPR maintains active product status with Texas Instruments, ensuring continued availability, technical support, and compliance with current manufacturing standards. The original SN74LVC2G74YZAR is classified as obsolete, limiting future procurement options.

Compliance and Certifications: Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). No additional qualification or testing is required from a regulatory standpoint.

Electrical and Functional Equivalence: All critical electrical parameters, timing specifications, and functional characteristics are identical between the two parts. Pin-to-pin compatibility and circuit behavior are preserved.

Packaging Consideration: The primary difference is packaging format. The SN74LVC2G74YZPR is supplied in Tape & Reel format, which is standard for production volume applications. If individual unit packaging is required, alternative procurement channels or packaging services may be necessary.

Frequently Asked Questions (FAQ)

Q: Are the SN74LVC2G74YZAR and SN74LVC2G74YZPR pin-compatible?

A: Yes. Both parts use the 8-XFBGA, DSBGA package with identical pinout and electrical characteristics. Direct substitution is possible without circuit modification.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format and product status. The SN74LVC2G74YZAR is supplied as individual units and is obsolete. The SN74LVC2G74YZPR is supplied in Tape & Reel format and maintains active product status.

Q: Can I use the SN74LVC2G74YZPR in place of the SN74LVC2G74YZAR in existing designs?

A: Yes. The electrical specifications, timing parameters, supply voltage range, output drive capability, and operating temperature range are identical. No design changes are required.

Q: What does the 8-DSBGA package specification mean?

A: DSBGA refers to Die Size Ball Grid Array. The 8-pin configuration provides the flip-flop function in a compact surface mount package measuring 1.9mm x 0.9mm.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts maintain identical ROHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 rating. No additional compliance documentation is required for substitution.

Q: What is the quiescent current specification, and why is it important?

A: The quiescent current (Iq) of 10 µA represents the standby power consumption when the device is not actively switching. This specification is identical for both parts and is critical for low-power applications.

Q: Can these parts operate at voltages below 1.65V or above 5.5V?

A: No. Both parts are specified for operation within the 1.65V to 5.5V supply voltage range. Operation outside this range may result in unpredictable behavior or device damage.