74LVC4066PW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC4066PW,112 is a 4-circuit SPST-NO analog switch IC manufactured by Nexperia USA Inc., housed in a 14-TSSOP surface mount package. This device functions as a low-voltage CMOS switch array with 10Ohm on-state resistance and operates across a 1.65V to 5.5V supply range. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC4066PW,112
Manufacturer	Nexperia USA Inc.
Category	Interface
Switch Circuit Type	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	10Ohm
Voltage - Supply, Single (V+)	1.65V ~ 5.5V
Switch Time (Ton, Toff) (Max)	3.9ns, 5ns
-3dB Bandwidth	500MHz
Charge Injection	7.5pC
Channel Capacitance (CS(off), CD(off))	8pF
Current - Leakage (IS(off)) (Max)	5µA
Crosstalk	-56dB @ 1MHz
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74LVC4066PW,112 is determined by the following critical parameters:

Primary Substitution Criteria:

Switch circuit type: SPST - NO (Single Pole Single Throw, Normally Open)
Number of circuits: 4
Multiplexer/Demultiplexer configuration: 1:1
Package type: 14-TSSOP surface mount
On-state resistance: 10Ohm (primary requirement for low-impedance switching)
Supply voltage compatibility: Must support 1.65V ~ 5.5V range or broader
Operating temperature range: Must cover -40°C ~ 125°C or equivalent industrial range

Substitute Categories:

Category A - Direct Functional Equivalents (10Ohm On-State Resistance): MAX4614CUD+, MAX4614CUD+T, MAX4614EUD+, MAX4614EUD+T - These parts maintain the 10Ohm on-state resistance specification and 14-TSSOP package, with active product status and extended temperature ranges (-40°C ~ 85°C).

Category B - Higher On-State Resistance Alternatives (70Ohm): MAX4620EUD+, MAX4620EUD+T - These parts feature 70Ohm on-state resistance, suitable for applications where higher impedance is acceptable. Supply voltage extends to 12V.

Category C - Lower On-State Resistance Alternatives (4.5Ohm): MAX4737EUD+ - This part offers superior low-impedance performance at 4.5Ohm, with extended bandwidth (300MHz) and lower leakage current (500pA).

Category D - Higher On-State Resistance Alternatives (100Ohm): MAX4610CUD+, MAX4610EUD+, MAX4610EUD+T - These parts feature 100Ohm on-state resistance with extended supply voltage range (2V ~ 12V), suitable for lower-speed applications.

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	Supply Voltage (V+)	Switch Time Ton/Toff (Max)	-3dB Bandwidth	Leakage Current (Max)	Operating Temp	Product Status	Package
74LVC4066PW,112	Nexperia USA Inc.	10Ohm	1.65V ~ 5.5V	3.9ns, 5ns	500MHz	5µA	-40°C ~ 125°C	Obsolete	14-TSSOP
MAX4614CUD+	Analog Devices Inc./Maxim Integrated	10Ohm	2V ~ 5.5V	12ns, 10ns	70MHz	1nA	0°C ~ 70°C	Active	14-TSSOP
MAX4614CUD+T	Analog Devices Inc./Maxim Integrated	10Ohm	2V ~ 5.5V	12ns, 10ns	70MHz	1nA	0°C ~ 70°C	Active	14-TSSOP
MAX4614EUD+	Analog Devices Inc./Maxim Integrated	10Ohm	2V ~ 5.5V	12ns, 10ns	70MHz	1nA	-40°C ~ 85°C	Active	14-TSSOP
MAX4614EUD+T	Analog Devices Inc./Maxim Integrated	10Ohm	2V ~ 5.5V	12ns, 10ns	70MHz	1nA	-40°C ~ 85°C	Active	14-TSSOP
MAX4620EUD+	Analog Devices Inc./Maxim Integrated	70Ohm	2V ~ 12V	15ns, 10ns	-	1nA	-40°C ~ 85°C	Active	14-TSSOP
MAX4620EUD+T	Analog Devices Inc./Maxim Integrated	70Ohm	2V ~ 12V	15ns, 10ns	-	1nA	-40°C ~ 85°C	Active	14-TSSOP
MAX4737EUD+	Analog Devices Inc./Maxim Integrated	4.5Ohm	1.8V ~ 5.5V	80ns, 40ns	300MHz	500pA	-40°C ~ 85°C	Active	14-TSSOP
MAX4610CUD+	Analog Devices Inc./Maxim Integrated	100Ohm	2V ~ 12V	65ns, 28ns	300MHz	100pA	0°C ~ 70°C	Active	14-TSSOP
MAX4610EUD+	Analog Devices Inc./Maxim Integrated	100Ohm	2V ~ 12V	65ns, 28ns	300MHz	100pA	-40°C ~ 85°C	Active	14-TSSOP
MAX4610EUD+T	Analog Devices Inc./Maxim Integrated	100Ohm	2V ~ 12V	65ns, 28ns	300MHz	100pA	-40°C ~ 85°C	Active	14-TSSOP

Engineering Selection Recommendations

For Direct Replacement (Matching 10Ohm On-State Resistance):

The MAX4614 series (MAX4614CUD+, MAX4614CUD+T, MAX4614EUD+, MAX4614EUD+T) provides the closest functional match to the 74LVC4066PW,112. All variants maintain 10Ohm on-state resistance and 14-TSSOP packaging. The MAX4614EUD+ and MAX4614EUD+T variants are preferred for industrial applications due to their extended operating temperature range (-40°C ~ 85°C), which approaches the original part's -40°C ~ 125°C specification. All MAX4614 variants are active products with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and environmental compliance.

For Lower-Impedance Applications:

The MAX4737EUD+ offers superior performance with 4.5Ohm on-state resistance, lower leakage current (500pA vs. 5µA), and extended bandwidth (300MHz). This part is suitable for applications requiring minimal signal attenuation and is active with extended temperature range support (-40°C ~ 85°C).

For Extended Supply Voltage Range:

The MAX4610 series (MAX4610CUD+, MAX4610EUD+, MAX4610EUD+T) and MAX4620 series (MAX4620EUD+, MAX4620EUD+T) support supply voltages up to 12V, compared to the original 5.5V maximum. These parts are suitable for applications requiring higher supply voltages. The MAX4610 series features 100Ohm on-state resistance, while the MAX4620 series features 70Ohm on-state resistance.

Packaging and Availability:

All substitute parts are available in 14-TSSOP surface mount packaging, matching the original footprint. Tube and Tape & Reel packaging options are available across the MAX4614, MAX4620, and MAX4610 series, providing flexibility for different procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX4614 parts directly replace the 74LVC4066PW,112?

A: The MAX4614 series maintains the same 10Ohm on-state resistance, 4-circuit SPST-NO configuration, and 14-TSSOP package. However, the supply voltage range differs: MAX4614 supports 2V ~ 5.5V versus the original 1.65V ~ 5.5V. For applications operating above 1.65V, MAX4614 variants are direct functional replacements. The MAX4614EUD+ and MAX4614EUD+T variants are recommended for extended temperature range support.

Q: What is the difference between MAX4614CUD+ and MAX4614EUD+ variants?

A: Both maintain identical electrical specifications (10Ohm on-state resistance, 2V ~ 5.5V supply, 12ns/10ns switch times). The primary difference is operating temperature range: MAX4614CUD+ operates 0°C ~ 70°C, while MAX4614EUD+ operates -40°C ~ 85°C. For industrial and extended-temperature applications, MAX4614EUD+ is the appropriate selection.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging (CUD+) is suitable for lower-volume orders and manual assembly. Tape & Reel packaging (CUD+T, EUD+T) is optimized for high-volume automated assembly and provides better cost efficiency at scale. Both packaging formats contain identical components; the difference is in delivery and handling format.

Q: Can I use MAX4610 (100Ohm) instead of MAX4614 (10Ohm)?

A: Substitution depends on circuit requirements. The 100Ohm on-state resistance of MAX4610 introduces 10 times higher impedance, which may cause signal attenuation in low-impedance applications. MAX4610 is suitable only for applications where higher switch impedance is acceptable. For direct impedance matching, MAX4614 (10Ohm) is required.

Q: Is the MAX4737EUD+ a suitable replacement?

A: The MAX4737EUD+ offers superior performance with 4.5Ohm on-state resistance (lower than the original 10Ohm), making it suitable for applications requiring minimal impedance. However, it features lower bandwidth (300MHz vs. 500MHz) and longer switch times (80ns/40ns vs. 3.9ns/5ns). Use MAX4737EUD+ only when lower impedance is a design requirement and reduced bandwidth is acceptable.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (MAX4614, MAX4620, MAX4610, MAX4737 series) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance of the original 74LVC4066PW,112.

Q: What is the minimum supply voltage for MAX4614 parts?

A: MAX4614 series supports 2V minimum supply voltage, compared to the original 74LVC4066PW,112 at 1.65V. For applications requiring operation below 2V, the MAX4737EUD+ supports 1.8V minimum, though with different impedance characteristics.

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