SN74LVC157ARGYRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC157ARGYRG4 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments, housed in a 16-VQFN (4x4.6) surface mount package. This device is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design requirements and production continuity. The part operates across a single supply voltage range of 2V to 3.6V with output currents of 24mA for both high and low states, suitable for low-voltage digital logic applications.

Substiute Parts

SN74LVC157ARGYRG4

Texas InstrumentsIn Stock: 731SN74LVC157ARGYRG4 Datasheet

Current PartRFQ

SN74LVC157ARGYR

Texas InstrumentsIn Stock: 4610SN74LVC157ARGYR Datasheet

Parametric EquivalentRFQ

74LVC157ABQ,115

Nexperia USA Inc.In Stock: 1048274LVC157ABQ,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC157ARGYRG4 are identified based on strict electrical and mechanical parameter alignment. The critical parameters determining substitutability are:

• Circuit configuration (4 x 2:1 multiplexer topology)
• Output current capability (24mA high and low)
• Voltage supply range compatibility
• Operating temperature range
• Package type and physical dimensions
• RoHS and compliance certifications

Two substitute parts meet these criteria with varying degrees of parameter alignment and product availability status.

Parameter Comparison

Engineering Selection Recommendations

SN74LVC157ARGYR is the primary parametric equivalent, manufactured by Texas Instruments with identical electrical specifications and package dimensions to the main part. This substitute maintains the same voltage supply range (2V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and physical package footprint (16-VQFN 4x4.6). The part is currently active in production with higher inventory availability (4569 pcs) compared to the discontinued main part. RoHS3 compliance and MSL rating are equivalent.

74LVC157ABQ,115 is the manufacturer-recommended alternative from Nexperia USA Inc. This substitute offers extended operating temperature range (-40°C ~ 125°C) and lower minimum voltage supply (1.2V vs 2V), providing broader application flexibility. The physical package footprint differs slightly (16-DHVQFN 2.5x4.6 vs 16-VQFN 4x4.6), requiring PCB layout verification. MSL rating is superior (1 vs 2), indicating better moisture tolerance. This part is active with substantial inventory (10382 pcs).

Selection between these substitutes depends on specific application requirements: use SN74LVC157ARGYR for direct form-fit-function replacement; use 74LVC157ABQ,115 when extended temperature range or lower voltage operation is beneficial and PCB redesign is acceptable.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC157ARGYR be used as a direct replacement for SN74LVC157ARGYRG4?

A: Yes. Both parts share identical electrical parameters (4 x 2:1 multiplexer, 24mA output current, 2V ~ 3.6V supply, -40°C ~ 85°C operating range) and physical package dimensions (16-VQFN 4x4.6). The primary difference is product status: SN74LVC157ARGYR is active while the main part is discontinued.

Q: What is the key difference between SN74LVC157ARGYR and 74LVC157ABQ,115?

A: Both are 4 x 2:1 multiplexers with identical output current and circuit configuration. The 74LVC157ABQ,115 offers extended operating temperature (-40°C ~ 125°C vs -40°C ~ 85°C), lower minimum supply voltage (1.2V vs 2V), and improved moisture sensitivity (MSL 1 vs MSL 2). However, its physical package is slightly smaller (16-DHVQFN 2.5x4.6 vs 16-VQFN 4x4.6), requiring PCB layout verification.

Q: Are there packaging differences between these parts?

A: SN74LVC157ARGYRG4 and SN74LVC157ARGYR use identical 16-VQFN (4x4.6) packages. The 74LVC157ABQ,115 uses a 16-DHVQFN (2.5x4.6) package with smaller physical dimensions. PCB footprint compatibility must be verified before substitution.

Q: Do all three parts meet RoHS compliance requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Which substitute should be selected for new designs?

A: For new designs, SN74LVC157ARGYR is recommended as the primary choice due to identical specifications and active production status. If extended temperature range or lower voltage operation is required, 74LVC157ABQ,115 is suitable provided PCB layout accommodates the smaller package footprint.