74LVCV2G66GD,125 Equivalent & Substitute Parts

Part Overview

The 74LVCV2G66GD,125 is a 2-circuit IC switch with SPST-NO configuration manufactured by Nexperia USA Inc. This component operates as a 1:1 multiplexer/demultiplexer with 10Ohm on-state resistance and is designed for low-voltage signal switching applications. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVCV2G66GD,125
Manufacturer	Nexperia USA Inc.
Series	74LVC
Category	Interface
Switch Circuit Type	SPST - NO
Number of Circuits	2
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	10Ohm
Supply Voltage Range (V+)	2.3V ~ 5.5V
Switch Time - Ton (Max)	5ns
Switch Time - Toff (Max)	9ns
-3dB Bandwidth	210MHz
Charge Injection	0.0035pC
Channel Capacitance (CS(off), CD(off))	8pF
Current - Leakage (IS(off)) (Max)	10µA
Crosstalk	-55dB @ 1MHz
Operating Temperature Range	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	8-XFDFN
Supplier Device Package	8-XSON (2x3)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74LVCV2G66GD,125 is determined by strict equivalence across the following critical parameters:

Switch circuit type: SPST - NO
Number of circuits: 2
Multiplexer/demultiplexer configuration: 1:1
On-state resistance: 10Ohm (maximum)
Supply voltage range: 2.3V ~ 5.5V
Switch timing: Ton ≤ 5ns, Toff ≤ 9ns
Bandwidth: 210MHz minimum
Charge injection: 0.0035pC
Channel capacitance: 8pF
Leakage current: 10µA (maximum)
Crosstalk: -55dB @ 1MHz
Operating temperature: -40°C ~ 125°C
Mounting type: Surface Mount
RoHS compliance: ROHS3 Compliant

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications with different packaging) and functional substitutes (equivalent performance across all critical parameters with potential package variations).

Parameter Comparison

Parameter	74LVCV2G66GD,125 (Main)	74LVCV2G66DC,125 (Substitute)	74LVCV2G66GTX (Parametric Equivalent)
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	NXP USA Inc.
Series	74LVC	74LVC	74LVC
Switch Circuit Type	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	2	2	2
Multiplexer/Demultiplexer Configuration	1:1	1:1	1:1
On-State Resistance (Max)	10Ohm	10Ohm	10Ohm
Supply Voltage Range (V+)	2.3V ~ 5.5V	2.3V ~ 5.5V	2.3V ~ 5.5V
Switch Time - Ton (Max)	5ns	5ns	5ns
Switch Time - Toff (Max)	9ns	9ns	9ns
-3dB Bandwidth	210MHz	210MHz	210MHz
Charge Injection	0.0035pC	0.0035pC	0.0035pC
Channel Capacitance (CS(off), CD(off))	8pF	8pF	8pF
Current - Leakage (IS(off)) (Max)	10µA	10µA	10µA
Crosstalk	-55dB @ 1MHz	-55dB @ 1MHz	-55dB @ 1MHz
Operating Temperature Range	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-XFDFN	8-VFSOP (0.091", 2.30mm Width)	8-XFDFN
Supplier Device Package	8-XSON (2x3)	8-VSSOP	8-XSON (1.95x1)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Not specified

Engineering Selection Recommendations

74LVCV2G66DC,125 is a functional substitute with identical electrical specifications. This part is currently in active production status, making it suitable for new designs and production continuity. The primary difference is the package type: 8-VFSOP (0.091", 2.30mm Width) versus the original 8-XSON (2x3). Both packages are surface-mount configurations with equivalent pin counts and functionality. This part is available in Tape & Reel (TR) packaging format.

74LVCV2G66GTX is a parametric equivalent with identical electrical specifications and the same 8-XFDFN package as the original part. This part is currently in active production status and is available in bulk packaging. The package dimensions differ slightly (8-XSON 1.95x1 versus 8-XSON 2x3), but both are XFDFN variants with equivalent electrical performance.

Both substitute parts maintain ROHS3 compliance and are suitable for applications requiring the same electrical characteristics as the 74LVCV2G66GD,125. Selection between substitutes depends on packaging requirements and availability constraints.

Frequently Asked Questions (FAQ)

Q: Can 74LVCV2G66DC,125 be used as a direct replacement for 74LVCV2G66GD,125?

A: Yes. Both parts have identical electrical specifications across all critical parameters including switch circuit type, on-state resistance, supply voltage range, switching time, bandwidth, and operating temperature. The primary difference is the package type (8-VFSOP versus 8-XSON), which requires PCB layout adjustment but maintains functional equivalence.

Q: What is the difference between 74LVCV2G66GTX and 74LVCV2G66GD,125?

A: Both parts are parametrically equivalent with identical electrical specifications and the same 8-XFDFN package family. The main difference is the XSON dimensions (1.95x1 versus 2x3) and product status (active versus obsolete). The 74LVCV2G66GTX is recommended for new designs due to active production status.

Q: Are there package compatibility considerations when substituting these parts?

A: Yes. The 74LVCV2G66DC,125 uses 8-VFSOP packaging while the original uses 8-XSON. The 74LVCV2G66GTX uses 8-XFDFN with different dimensions. PCB footprints must be verified for compatibility before substitution. Pin count remains constant at 8 pins across all variants.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All listed parts are ROHS3 compliant and have REACH Unaffected status. Moisture sensitivity level is MSL 1 (Unlimited) for both the main part and 74LVCV2G66DC,125. The 74LVCV2G66GTX does not specify MSL but maintains equivalent environmental compliance.

Q: Which substitute part should be selected for new production?

A: Selection depends on packaging requirements and availability. The 74LVCV2G66GTX is recommended when the original 8-XSON package is required, as it maintains identical package specifications. The 74LVCV2G66DC,125 is suitable when 8-VFSOP packaging is acceptable and provides active production status with Tape & Reel availability.

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