74LVC4066D,112 Equivalent & Substitute Parts

Part Overview

The 74LVC4066D,112 is a 4-circuit SPST-NO (Single Pole Single Throw - Normally Open) analog switch IC manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This device features low on-state resistance of 10Ω and operates across a supply voltage range of 1.65V to 5.5V, making it suitable for low-voltage analog switching applications. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	10Ω
Supply Voltage Range (V+)	1.65V ~ 5.5V
Switch Time (Ton/Toff Max)	3.9ns / 5ns
-3dB Bandwidth	500MHz
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 74LVC4066D,112 is determined by the following critical parameters:

Circuit Configuration: All substitutes must maintain SPST-NO topology with 4 independent circuits in 1:1 multiplexer configuration
Package Compatibility: 14-SOIC surface mount package is mandatory for PCB layout compatibility
On-State Resistance: The 10Ω specification of the original part establishes the baseline. Substitutes with higher on-state resistance (45Ω, 95Ω, 100Ω) are acceptable only when circuit design permits increased resistance without performance degradation
Supply Voltage Range: The 1.65V ~ 5.5V range of the original part is the most restrictive. Substitutes with wider ranges (2V ~ 16V) or narrower ranges (4.5V ~ 5.5V) must be evaluated against actual application requirements
Operating Temperature: The -40°C ~ 125°C range is the reference. Substitutes with narrower ranges (0°C ~ 70°C, -40°C ~ 85°C) require confirmation that application temperature extremes are not exceeded
Speed Characteristics: Switch time and bandwidth parameters must be adequate for the intended signal frequency and switching speed requirements

Parameter Comparison

Parameter	74LVC4066D,112	D24066QM96G4Q1	MAX4066ACSD+	MAX4066ACSD+T	MAX4066AESD+	MAX4066AESD+T	MAX4066CSD+	MAX4066CSD+T	MAX4066ESD+	MAX4066ESD+T	MAX4610CSD+
Manufacturer	Nexperia USA Inc.	Texas Instruments	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4	4	4	4	4	4	4	4	4
Multiplexer Configuration	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1
On-State Resistance (Max)	10Ω	95Ω	45Ω	45Ω	45Ω	45Ω	45Ω	45Ω	45Ω	45Ω	100Ω
Supply Voltage (V+)	1.65V ~ 5.5V	4.5V ~ 5.5V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 16V	2V ~ 12V
Switch Time Ton (Max)	3.9ns	24ns	100ns	100ns	100ns	100ns	100ns	100ns	100ns	100ns	65ns
Switch Time Toff (Max)	5ns	35ns	75ns	75ns	75ns	75ns	75ns	75ns	75ns	75ns	28ns
-3dB Bandwidth	500MHz	200MHz	100MHz	100MHz	100MHz	100MHz	100MHz	100MHz	100MHz	100MHz	300MHz
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Closest Electrical Match):

The MAX4066 series variants (MAX4066ACSD+, MAX4066ACSD+T, MAX4066AESD+, MAX4066AESD+T, MAX4066CSD+, MAX4066CSD+T, MAX4066ESD+, MAX4066ESD+T) from Analog Devices Inc./Maxim Integrated provide the most direct functional equivalence. All variants maintain the 4-circuit SPST-NO configuration in 14-SOIC packaging with 45Ω on-state resistance. The primary differentiation among MAX4066 variants is operating temperature range and packaging format (Tube vs. Tape & Reel). Variants rated for -40°C ~ 85°C (AESD+, AESD+T, ESD+, ESD+T) accommodate the full temperature range of the original part, while 0°C ~ 70°C variants (ACSD+, ACSD+T, CSD+, CSD+T) are suitable for commercial temperature applications only. All MAX4066 variants are ROHS3 compliant and currently in Active product status.

Secondary Substitutes (Acceptable with Design Verification):

The D24066QM96G4Q1 from Texas Instruments maintains SPST-NO topology with 4 circuits in 14-SOIC packaging. This part features 95Ω on-state resistance and operates within 4.5V ~ 5.5V supply range, which is narrower than the original 1.65V ~ 5.5V specification. The D24066QM96G4Q1 is qualified to AEC-Q100 automotive standards and carries Last Time Buy status. This substitute is applicable only to designs operating within the 4.5V ~ 5.5V window and requiring automotive-grade qualification.

The MAX4610CSD+ from Analog Devices Inc./Maxim Integrated provides 4-circuit SPST-NO switching in 14-SOIC packaging with 100Ω on-state resistance. Operating range is 2V ~ 12V. This part is suitable for applications where higher on-state resistance is acceptable and supply voltage does not exceed 12V.

Packaging Considerations:

Tube packaging (ACSD+, AESD+, CSD+, ESD+) is appropriate for lower-volume applications and manual assembly. Tape & Reel (ACSD+T, AESD+T, CSD+T, ESD+T) and Cut Tape & Digi-Reel® (CSD+T for MAX4610) formats support automated pick-and-place assembly for higher-volume production.

Frequently Asked Questions (FAQ)

Q: Can the MAX4066 series directly replace the 74LVC4066D,112 in existing designs?

A: The MAX4066 series maintains identical circuit topology (4-circuit SPST-NO in 14-SOIC) and is pin-compatible. However, the on-state resistance increases from 10Ω to 45Ω. Designs must verify that this 4.5× increase in resistance does not degrade signal integrity, introduce unacceptable voltage drops, or violate impedance matching requirements. Operating temperature range varies by MAX4066 variant; confirm that the selected variant covers your application's temperature extremes.

Q: What is the significance of the on-state resistance difference between the 74LVC4066D,112 (10Ω) and substitute parts?

A: On-state resistance directly affects signal attenuation, power dissipation, and frequency response. The 74LVC4066D,112's 10Ω specification provides minimal signal loss and is suitable for high-impedance loads. Substitutes with 45Ω (MAX4066 series), 95Ω (D24066QM96G4Q1), or 100Ω (MAX4610CSD+) resistance introduce proportionally greater signal attenuation. Applications involving low-impedance loads, precision analog switching, or high-frequency signals may require circuit redesign or impedance compensation when migrating to higher-resistance alternatives.

Q: Why do some substitutes have narrower supply voltage ranges than the original part?

A: The 74LVC4066D,112 operates from 1.65V to 5.5V, supporting both low-voltage and standard 5V logic systems. The D24066QM96G4Q1 is restricted to 4.5V ~ 5.5V, limiting its use to 5V-only systems. The MAX4066 series (2V ~ 16V) and MAX4610CSD+ (2V ~ 12V) offer wider ranges, accommodating diverse supply voltages. Selection must align with your system's actual supply voltage specification.

Q: What is the difference between MAX4066 variants with different temperature ratings?

A: The MAX4066 family offers two temperature grades: commercial (0°C ~ 70°C) and extended (−40°C ~ 85°C). The extended-range variants (AESD+, AESD+T, ESD+, ESD+T) approach the original part's −40°C ~ 125°C specification but do not fully match it. Commercial-grade variants (ACSD+, ACSD+T, CSD+, CSD+T) are suitable only for controlled environments. Select the temperature grade matching your application's operating environment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original 74LVC4066D,112. All parts are also REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001.

Q: What packaging formats are available for the substitute parts?

A: Substitute parts are available in Tube, Tape & Reel (TR), and Cut Tape & Digi-Reel® formats. Tube packaging suits manual assembly and prototyping. Tape & Reel and Cut Tape formats support automated assembly. Verify packaging availability with your supplier and confirm compatibility with your assembly process.

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