SN74LVC2G38DCURE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G38DCURE4 is a NAND Gate IC featuring 2 channels with 2 inputs per channel in an 8-VSSOP surface mount package. This Texas Instruments logic component operates across a supply voltage range of 1.65V to 5.5V with open drain output configuration. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

SN74LVC2G38DCURE4

Texas InstrumentsIn Stock: 1088SN74LVC2G38DCURE4 Datasheet

Current PartRFQ

SN74LVC2G38DCUR

Texas InstrumentsIn Stock: 3553SN74LVC2G38DCUR Datasheet

Parametric EquivalentRFQ

SN74LVC2G38DCUT

Texas InstrumentsIn Stock: 2144SN74LVC2G38DCUT Datasheet

Parametric EquivalentRFQ

74LVC2G38DC,125

NXP USA Inc.In Stock: 222874LVC2G38DC,125 Datasheet

UpgradeRFQ

74LVC2G38DP,125

NXP SemiconductorsIn Stock: 337274LVC2G38DP,125 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC2G38DCURE4 is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Logic Type: NAND Gate
• Number of Circuits: 2
• Number of Inputs: 2
• Features: Open Drain
• Voltage - Supply: 1.65V ~ 5.5V
• Package / Case: 8-VFSOP (0.091", 2.30mm Width)
• Mounting Type: Surface Mount

Allowable Variations:

• Current - Quiescent (Max): Up to 10 µA
• Current - Output High, Low: -, 32mA
• Max Propagation Delay: Up to 3.9ns @ 5V, 50pF
• Operating Temperature: -40°C minimum to 85°C minimum
• Manufacturer: Different manufacturers permitted
• Packaging Format: Tape & Reel or Bulk acceptable
• Product Status: Active status preferred for obsolete parts

Substitute parts must maintain identical functional logic, pin configuration, and electrical interface characteristics to ensure direct replacement capability without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacement):

SN74LVC2G38DCUR and SN74LVC2G38DCUT are parametric equivalents manufactured by Texas Instruments. Both parts maintain identical electrical specifications, operating temperature range, and package configuration as the main part. These components are classified as active products, providing long-term availability and supply chain stability. Selection between these two options depends on packaging requirements: SN74LVC2G38DCUR is supplied in Tape & Reel format with 3451 units in stock, while SN74LVC2G38DCUT is also supplied in Tape & Reel format with 2075 units in stock.

Upgrade Options:

74LVC2G38DC,125 (NXP USA Inc.) and 74LVC2G38DP,125 (NXP Semiconductors) represent upgrade alternatives. The 74LVC2G38DC,125 offers improved quiescent current performance (4 µA versus 10 µA) and faster propagation delay (3.3ns versus 3.9ns), with extended operating temperature range to 125°C. Both NXP variants are active products with substantial inventory availability. The 74LVC2G38DP,125 is designated as manufacturer recommended and is available in bulk packaging with 3320 units in stock.

Compliance Considerations:

All identified substitutes maintain ROHS3 compliance and MSL Level 1 rating where specified. Selection should prioritize active product status to ensure sustained component availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC2G38DCUR directly replace SN74LVC2G38DCURE4?

A: Yes. SN74LVC2G38DCUR is a parametric equivalent with identical logic type, circuit count, input configuration, open drain feature, supply voltage range, output current rating, propagation delay, and operating temperature range. The primary difference is packaging format (Tape & Reel versus Tube) and active product status versus obsolete status.

Q: What is the difference between the Texas Instruments and NXP substitute options?

A: Texas Instruments options (SN74LVC2G38DCUR and SN74LVC2G38DCUT) maintain exact electrical specifications matching the original part. NXP options (74LVC2G38DC,125 and 74LVC2G38DP,125) provide performance improvements including lower quiescent current and faster propagation delay, with extended temperature range to 125°C. Both manufacturers' parts share identical package configuration and logic functionality.

Q: Are there any compatibility concerns when switching between manufacturers?

A: No compatibility concerns exist at the functional level. All substitute parts maintain identical pin configuration, package dimensions (8-VFSOP), logic type (NAND Gate), and electrical interface characteristics. Substitution can proceed without circuit redesign or board layout modification.

Q: Which substitute part offers the best long-term availability?

A: All identified substitutes are classified as active products. 74LVC2G38DP,125 is designated as manufacturer recommended by NXP Semiconductors with 3320 units in stock, providing strong supply chain assurance. SN74LVC2G38DCUR offers 3451 units in stock from Texas Instruments.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range does not restrict substitution. The original part operates from -40°C to 85°C. NXP variants extend this to -40°C to 125°C, which represents an enhancement rather than a limitation. Selection should be based on application temperature requirements.

Q: What packaging formats are available for these substitutes?

A: SN74LVC2G38DCUR and SN74LVC2G38DCUT are supplied in Tape & Reel format. 74LVC2G38DC,125 and 74LVC2G38DP,125 are supplied in Bulk format. Packaging selection depends on production volume and handling requirements.