SN74LVC3G14DCU6 Equivalent & Substitute Parts

Part Overview

The SN74LVC3G14DCU6 is a 3-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 8-VSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates across a wide supply voltage range of 1.65V to 5.5V and is suitable for logic-level signal inversion applications requiring hysteresis input characteristics.

Substiute Parts

SN74LVC3G14DCU6

Texas InstrumentsIn Stock: 1178SN74LVC3G14DCU6 Datasheet

Current PartRFQ

SN74LVC3G14DCUR

Texas InstrumentsIn Stock: 4108SN74LVC3G14DCUR Datasheet

Parametric EquivalentRFQ

SN74LVC3G14DCUT

Texas InstrumentsIn Stock: 2009SN74LVC3G14DCUT Datasheet

Parametric EquivalentRFQ

NC7NZ14K8X

onsemiIn Stock: 31155NC7NZ14K8X Datasheet

DirectRFQ

74LVC3G14DC,125

Nexperia USA Inc.In Stock: 421974LVC3G14DC,125 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LVC3G14DCU6 is determined by the following critical parameters:

• Logic Configuration: 3-channel inverter with Schmitt trigger inputs
• Electrical Performance: Supply voltage range 1.65V ~ 5.5V, output current capability 32mA, propagation delay 4.3ns @ 5V/50pF
• Package Compatibility: 8-VFSOP surface mount package with 0.091" width and 2.30mm pitch
• Environmental Compliance: ROHS3 compliance, MSL 1 rating, operating temperature -40°C ~ 125°C

Substitute parts are grouped into three categories based on manufacturer and packaging format:

Parametric Equivalents (Texas Instruments): SN74LVC3G14DCUR and SN74LVC3G14DCUT maintain identical electrical specifications and package dimensions, differing only in tape format (Cut Tape & Digi-Reel® versus Tape & Reel).

Direct Manufacturer Equivalent (onsemi): NC7NZ14K8X provides functional equivalence with the same logic configuration and package footprint, with minor variations in quiescent current and input logic levels within acceptable design margins.

MFR Recommended Equivalent (Nexperia): 74LVC3G14DC,125 offers full parametric compatibility as a manufacturer-recommended substitute with identical package and electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SN74LVC3G14DCUR or SN74LVC3G14DCUT (Texas Instruments)

Both parts maintain full parametric equivalence to the obsolete SN74LVC3G14DCU6 with identical electrical specifications and package dimensions. Selection between these two depends on procurement format requirements: SN74LVC3G14DCUR is supplied in Cut Tape & Digi-Reel® format, while SN74LVC3G14DCUT is supplied in Tape & Reel format. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating.

Secondary Recommendation: 74LVC3G14DC,125 (Nexperia USA Inc.)

This manufacturer-recommended equivalent provides full parametric compatibility with identical propagation delay and output current specifications. It is designated as an active product with ROHS3 compliance and represents a qualified alternative from a different manufacturer within the 74LVC logic family.

Alternative Consideration: NC7NZ14K8X (onsemi)

This part provides functional equivalence with the same logic configuration and package footprint. The NC7NZ14K8X exhibits lower quiescent current (1 µA versus 10 µA) and slightly longer propagation delay (5.9ns versus 4.3ns at 5V/50pF). The operating temperature range is limited to -40°C ~ 85°C compared to -40°C ~ 125°C for the primary recommendations. This part is suitable for applications where the reduced temperature range and increased propagation delay are acceptable.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC3G14DCUR and SN74LVC3G14DCUT be used interchangeably with SN74LVC3G14DCU6?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, package dimensions, and pin configurations. The difference between them is packaging format only: DCUR uses Cut Tape & Digi-Reel® format while DCUT uses Tape & Reel format. Selection depends on your assembly process requirements.

Q: What are the key differences between the Texas Instruments and onsemi substitutes?

A: The NC7NZ14K8X from onsemi has lower quiescent current (1 µA versus 10 µA) and slightly longer propagation delay (5.9ns versus 4.3ns). The operating temperature range is also narrower (-40°C ~ 85°C versus -40°C ~ 125°C). These differences are within acceptable design margins for most applications but should be evaluated against your specific performance requirements.

Q: Is the 74LVC3G14DC,125 from Nexperia a direct replacement?

A: Yes. The 74LVC3G14DC,125 is a manufacturer-recommended equivalent with identical electrical performance, package footprint, and operating temperature range. It is designated as an active product and maintains full ROHS3 compliance.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the 8-VFSOP surface mount package with 0.091" width and 2.30mm pitch, ensuring direct PCB compatibility with the original SN74LVC3G14DCU6.

Q: What is the significance of the obsolete status of the original part?

A: The SN74LVC3G14DCU6 is classified as obsolete, meaning Texas Instruments no longer manufactures or supports this specific part number. The recommended substitutes (SN74LVC3G14DCUR and SN74LVC3G14DCUT) are active products from the same manufacturer and series, ensuring continued availability and technical support.

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

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the compliance profile of the original SN74LVC3G14DCU6.