74VCX08MX AND Gate IC Equivalent & Substitute Parts

Part Overview

The 74VCX08MX is a 4-channel 2-input AND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part operates across a 1.2V to 3.6V supply voltage range with low quiescent current and fast propagation delay characteristics. The product is designated as Last Time Buy status, indicating limited future availability. Identifying qualified substitute parts ensures design continuity and supply chain resilience for applications requiring AND gate logic functionality.

Substiute Parts

74VCX08MX

onsemiIn Stock: 400974VCX08MX Datasheet

Current PartRFQ

SN74ALVC08DR

Texas InstrumentsIn Stock: 3755SN74ALVC08DR Datasheet

DirectRFQ

74ALVC08D,118

NXP SemiconductorsIn Stock: 426874ALVC08D,118 Datasheet

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SN74ALVC08D

Texas InstrumentsIn Stock: 973SN74ALVC08D Datasheet

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SN74ALVC08IDREP

Texas InstrumentsIn Stock: 1199SN74ALVC08IDREP Datasheet

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SN74ALVC08IDRG4Q1

Texas InstrumentsIn Stock: 3584SN74ALVC08IDRG4Q1 Datasheet

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SN74ALVC08NSR

Texas InstrumentsIn Stock: 3532SN74ALVC08NSR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74VCX08MX are qualified based on the following critical parameters:

• Logic Function: All substitutes must implement 4-channel 2-input AND gate logic
• Package Compatibility: Primary substitutes use 14-SOIC packaging with identical pin configuration
• Supply Voltage Range: Substitutes must operate within overlapping voltage specifications
• Output Drive Capability: Current output ratings must meet or exceed application requirements
• Propagation Delay: Timing characteristics must support system performance requirements
• Temperature Range: Operating temperature must cover -40°C to 85°C minimum
• Compliance: RoHS3 compliance and MSL rating must match or exceed original specification

The 74ALVC08 series from Texas Instruments and NXP Semiconductors represents the primary substitute family, offering compatible logic function with enhanced specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility)

SN74ALVC08DR, SN74ALVC08D, and SN74ALVC08IDREP from Texas Instruments are functionally equivalent to the 74VCX08MX with identical pin configuration and 14-SOIC (0.154", 3.90mm) packaging. These parts maintain active product status with full RoHS3 compliance and MSL 1 rating. The 74ALVC08 series demonstrates improved quiescent current performance (10 µA versus 20 µA) while maintaining equivalent output drive capability and propagation delay characteristics within acceptable tolerance.

Packaging Variant

SN74ALVC08NSR provides functional equivalence with a wider 14-SOIC package variant (0.209", 5.30mm width). This part is suitable only for designs with PCB layout accommodating the larger package footprint. Pin configuration remains identical to the original specification.

Automotive Grade Alternative

SN74ALVC08IDRG4Q1 offers the same logic function with AEC-Q100 automotive qualification and Tape & Reel packaging. This variant is designated as discontinued at DiGi Electronics and should be evaluated only when automotive-grade certification is a design requirement.

Limited Information Substitute

74ALVC08D,118 from NXP Semiconductors provides the base 74ALVC08 logic function in bulk packaging. Detailed electrical specifications are not provided in available documentation. This part is suitable only when complete parameter verification through NXP technical documentation is feasible.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC08DR directly replace 74VCX08MX without PCB modification?

A: Yes. SN74ALVC08DR maintains identical pin configuration and 14-SOIC (0.154", 3.90mm) package dimensions. No PCB layout changes are required for direct substitution.

Q: What is the minimum supply voltage difference between 74VCX08MX and 74ALVC08 substitutes?

A: The 74VCX08MX operates from 1.2V minimum, while 74ALVC08 series parts operate from 1.65V minimum. Applications requiring operation below 1.65V cannot use 74ALVC08 substitutes.

Q: Are propagation delay differences between 74VCX08MX and SN74ALVC08DR significant?

A: The difference is minimal. 74VCX08MX specifies 2.8ns at 3.3V with 30pF load, while SN74ALVC08DR specifies 2.9ns at 3.3V with 50pF load. Both meet typical timing requirements for standard logic applications.

Q: Why does SN74ALVC08NSR have a different package width?

A: SN74ALVC08NSR uses 14-SO packaging (0.209", 5.30mm width) versus the standard 14-SOIC (0.154", 3.90mm). This represents a wider package variant with identical pin count and function. PCB footprint compatibility must be verified before selection.

Q: Is 74ALVC08D,118 from NXP suitable for high-reliability applications?

A: Limited technical documentation is available for 74ALVC08D,118. Complete electrical parameter verification through NXP datasheets is required before use in high-reliability applications.

Q: What is the inventory status of substitute parts?

A: SN74ALVC08DR (3674 pcs), SN74ALVC08D (894 pcs), SN74ALVC08IDREP (1158 pcs), and SN74ALVC08NSR (3478 pcs) are all listed as new original stock. 74ALVC08D,118 shows 4229 pcs available. Verify current availability with your component supplier.