74VCX00MX NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74VCX00MX is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74VCX00MX operates across a 1.2V to 3.6V supply voltage range with low quiescent current and standard NAND gate logic functionality suitable for general-purpose digital applications.

Substiute Parts

74VCX00MX

onsemiIn Stock: 325274VCX00MX Datasheet

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74VCX00MTCX

Fairchild SemiconductorIn Stock: 814574VCX00MTCX Datasheet

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74ALVC00D,118

Nexperia USA Inc.In Stock: 317574ALVC00D,118 Datasheet

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SN74ALVC00D

Texas InstrumentsIn Stock: 2236SN74ALVC00D Datasheet

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SN74ALVC00DR

Texas InstrumentsIn Stock: 3364SN74ALVC00DR Datasheet

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SN74ALVC00IDREP

Texas InstrumentsIn Stock: 1199SN74ALVC00IDREP Datasheet

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SN74ALVC00NSR

Texas InstrumentsIn Stock: 1957SN74ALVC00NSR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74VCX00MX are selected based on strict electrical and mechanical compatibility criteria. The following parameters determine valid substitution:

Core Functional Parameters:

• Logic Type: NAND Gate (4 channels, 2 inputs per channel)
• Supply Voltage Range: Must encompass or overlap with 1.2V ~ 3.6V
• Output Current Capability: 24mA minimum for both high and low states
• Input Logic Levels: Compatible threshold voltages
• Operating Temperature Range: -40°C ~ 85°C minimum
• Mounting Type: Surface Mount
• Package Compatibility: 14-SOIC or equivalent footprint

Compliance Parameters:

• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Substitute parts are grouped into two categories based on package type: 14-SOIC variants (direct footprint compatibility) and 14-TSSOP variants (alternative surface mount package with different pitch and dimensions).

Parameter Comparison

Engineering Selection Recommendations

For Direct Footprint Replacement (14-SOIC, 0.154" width):

The SN74ALVC00D, SN74ALVC00DR, and SN74ALVC00IDREP from Texas Instruments are active production parts with identical 14-SOIC packaging to the 74VCX00MX. All three maintain ROHS3 compliance and MSL 1 rating. These parts feature lower quiescent current (10 µA vs. 20 µA) and are suitable for direct PCB substitution without layout modifications.

The 74ALVC00D,118 from Nexperia USA Inc. is also an active production part in 14-SOIC packaging with ROHS3 compliance. This part maintains the 20 µA quiescent current specification matching the original 74VCX00MX.

For Alternative Package Consideration (14-TSSOP):

The 74VCX00MTCX from Fairchild Semiconductor is an active production part with identical electrical specifications to the 74VCX00MX (1.2V ~ 3.6V supply, 20 µA quiescent current, 2.8ns propagation delay). However, the 14-TSSOP package has different pitch and dimensions (0.173", 4.40mm width) requiring PCB layout redesign.

Voltage Supply Consideration:

The 74VCX00MX operates at 1.2V minimum supply voltage. The 74ALVC series substitutes (Nexperia and Texas Instruments) have a 1.65V minimum supply voltage. Applications requiring operation below 1.65V must use the 74VCX00MTCX or equivalent 74VCX series parts.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ALVC00D as a direct replacement for 74VCX00MX?

A: Yes, for applications operating at 1.65V or higher supply voltage. The SN74ALVC00D is pin-compatible in 14-SOIC packaging and maintains all required output current and logic level specifications. The lower quiescent current (10 µA vs. 20 µA) is an improvement. However, if your circuit operates below 1.65V, the 74VCX00MTCX must be used instead.

Q: What is the difference between SN74ALVC00D, SN74ALVC00DR, and SN74ALVC00IDREP?

A: These three Texas Instruments parts are electrically identical with the same 14-SOIC package. The differences are in packaging format: SN74ALVC00D is supplied in Tube, SN74ALVC00DR in Cut Tape & Digi-Reel, and SN74ALVC00IDREP in Tape & Reel. Select based on your procurement and assembly requirements.

Q: Why does SN74ALVC00NSR have a different package width (0.209" vs. 0.154")?

A: SN74ALVC00NSR uses a 14-SOIC package with 0.209" width, which differs from the standard 0.154" width. While both are 14-SOIC packages, the different width indicates different lead pitch or body dimensions. Verify PCB footprint compatibility before selection.

Q: Is the 74VCX00MTCX a suitable substitute if I need to redesign my PCB?

A: Yes, the 74VCX00MTCX is electrically equivalent to the 74VCX00MX with identical supply voltage range (1.2V ~ 3.6V), quiescent current (20 µA), and propagation delay (2.8ns @ 30pF). The 14-TSSOP package requires PCB layout changes but is an active production part with full RoHS compliance.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts except 74VCX00MTCX are confirmed ROHS3 compliant. The 74VCX00MTCX RoHS status is not specified in available data. Verify RoHS compliance documentation with the supplier if this is a requirement for your application.

Q: What is the MSL rating for all substitute parts?

A: The 74ALVC00D,118 and all Texas Instruments SN74ALVC00 variants maintain MSL 1 (Unlimited) rating, matching the original 74VCX00MX. The 74VCX00MTCX MSL rating is not specified. Confirm moisture sensitivity requirements with your assembly process specifications.