SN74LVC2G66YZAR Equivalent & Substitute Parts

Part Overview

The SN74LVC2G66YZAR is a 2-circuit IC switch with SPST-NO (Single Pole Single Throw - Normally Open) configuration manufactured by Texas Instruments. This component operates as a 1:1 multiplexer/demultiplexer with 10Ohm on-state resistance and supports supply voltages from 1.65V to 5.5V. The part is classified as obsolete, making identification of equivalent and substitute components essential for design continuity and procurement planning. Active alternatives with identical electrical and mechanical specifications are available to ensure uninterrupted supply chain access.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO
Number of Circuits	2
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	10Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)
Supply Voltage Range (V+)	1.65V ~ 5.5V
Switch Time (Ton, Toff) Max	3.9ns, 6.3ns
-3dB Bandwidth	300MHz
Channel Capacitance (CS(off), CD(off))	6pF
Leakage Current (IS(off)) Max	100nA
Crosstalk	-58dB @ 1MHz
Operating Temperature Range	-40°C ~ 85°C (TA)
Package Type	8-XFBGA, DSBGA
Supplier Device Package	8-DSBGA (1.9x0.9)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74LVC2G66YZAR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part SN74LVC2G66YZPR maintains identical specifications in the following key areas:

Switch circuit topology (SPST - NO, 2 circuits, 1:1 configuration)
Electrical performance (10Ohm on-state resistance, 2Ohm channel matching, 3.9ns/6.3ns switching times)
Signal integrity characteristics (300MHz bandwidth, -58dB crosstalk, 6pF capacitance, 100nA leakage)
Operating conditions (1.65V ~ 5.5V supply, -40°C ~ 85°C temperature range)
Physical form factor (8-DSBGA package, surface mount)
Compliance certifications (ROHS3, MSL 1, REACH Unaffected, EAR99)

The primary distinction between these parts is product status and packaging format. The SN74LVC2G66YZPR is an active product available in Tape & Reel (TR) packaging, whereas the SN74LVC2G66YZAR is obsolete. Both parts are manufactured by Texas Instruments and share the same base product number (74LVC2G66).

Parameter Comparison

Parameter	SN74LVC2G66YZAR (Main)	SN74LVC2G66YZPR (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Series	74LVC	74LVC
Switch Circuit	SPST - NO	SPST - NO
Number of Circuits	2	2
Multiplexer Configuration	1:1	1:1
On-State Resistance (Max)	10Ohm	10Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)	2Ohm (Max)
Supply Voltage (V+)	1.65V ~ 5.5V	1.65V ~ 5.5V
Switch Time (Ton, Toff) Max	3.9ns, 6.3ns	3.9ns, 6.3ns
-3dB Bandwidth	300MHz	300MHz
Channel Capacitance	6pF	6pF
Leakage Current (IS(off)) Max	100nA	100nA
Crosstalk	-58dB @ 1MHz	-58dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	8-XFBGA, DSBGA	8-XFBGA, DSBGA
Supplier Device Package	8-DSBGA (1.9x0.9)	8-DSBGA
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
Packaging Format	Not specified	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The SN74LVC2G66YZPR is the direct substitute for the obsolete SN74LVC2G66YZAR. Both parts are manufactured by Texas Instruments and maintain identical electrical performance, signal integrity, and operating specifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain reliability.

Both parts satisfy ROHS3 compliance requirements and carry REACH Unaffected status, meeting environmental and regulatory standards for industrial and commercial applications. The MSL 1 rating indicates unlimited shelf life under standard storage conditions, eliminating moisture-related handling constraints.

The SN74LVC2G66YZPR is supplied in Tape & Reel (TR) packaging format, which is the standard distribution method for high-volume production environments. This packaging format is compatible with automated assembly processes and provides cost efficiency for manufacturing operations.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC2G66YZPR be used as a direct replacement for the SN74LVC2G66YZAR?

A: Yes. Both parts are electrically and mechanically identical. They share the same base product number (74LVC2G66), identical switch specifications (SPST-NO, 2 circuits, 1:1 configuration), and matching electrical parameters across all critical performance metrics including on-state resistance, switching time, bandwidth, and leakage current.

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

A: The primary difference is product status and packaging. The SN74LVC2G66YZAR is classified as obsolete, while the SN74LVC2G66YZPR is an active product. The substitute part is supplied in Tape & Reel (TR) packaging, which is the standard format for production environments.

Q: Are there any compatibility concerns with the 8-DSBGA package?

A: No. Both parts use the same 8-DSBGA (1.9x0.9) package footprint and surface mount configuration. PCB layout, solder reflow profiles, and assembly processes remain unchanged.

Q: Do these parts meet environmental compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry REACH Unaffected status. They meet current environmental and regulatory requirements for industrial and commercial applications.

Q: What is the MSL rating and does it affect handling?

A: Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under standard storage conditions. No special moisture control or baking procedures are required prior to assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message