74LVC00ADTR2G NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74LVC00ADTR2G is a quad 2-input NAND gate logic IC manufactured by onsemi, housed in a 14-TSSOP surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The 74LVC series operates across a wide supply voltage range of 1.2V to 3.6V, making it suitable for mixed-voltage applications. Substitute parts must maintain functional equivalence in logic operation while meeting the electrical and mechanical constraints of the original design.

Substiute Parts

74LVC00ADTR2G

onsemiIn Stock: 92674LVC00ADTR2G Datasheet

Current PartRFQ

MC74LCX00DTR2G

onsemiIn Stock: 2877MC74LCX00DTR2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC00ADTR2G is determined by the following critical parameters:

Functional Requirements:

• Logic type must be NAND gate with 4 channels and 2 inputs per channel
• Package must be 14-TSSOP to ensure PCB compatibility without layout redesign
• Mounting type must be surface mount

Electrical Compatibility:

• Output drive capability must meet or exceed 24mA for both high and low states
• Supply voltage range must overlap with the application's operating range
• Propagation delay must not exceed system timing requirements

Environmental & Compliance:

• Operating temperature range must cover the application's thermal envelope
• RoHS3 compliance required for regulatory alignment
• Moisture sensitivity level must be acceptable for manufacturing processes

The MC74LCX00DTR2G qualifies as a direct substitute based on matching logic configuration, identical package, and compatible electrical characteristics within the specified constraints.

Parameter Comparison

Engineering Selection Recommendations

The MC74LCX00DTR2G is a qualified substitute for the obsolete 74LVC00ADTR2G based on the following criteria:

Functional Equivalence: Both parts implement identical NAND gate logic with 4 channels and 2 inputs per channel in the same 14-TSSOP package, ensuring direct PCB compatibility without layout modifications.

Electrical Suitability: Output drive capability is identical at 24mA for both high and low states. The substitute's lower quiescent current (10 µA vs. 40 µA) provides improved power efficiency. Propagation delay difference (5.5ns vs. 5.1ns) is negligible for standard logic applications.

Supply Voltage Consideration: The substitute operates within 2V to 3.6V, which is a subset of the original part's 1.2V to 3.6V range. Applications requiring operation below 2V supply voltage cannot use this substitute.

Temperature Range Limitation: The substitute's maximum operating temperature is 85°C compared to the original 125°C. Applications requiring operation above 85°C must use alternative parts or the original specification.

Compliance Alignment: Both parts maintain ROHS3 compliance and identical moisture sensitivity levels, ensuring manufacturing process compatibility and regulatory adherence.

Frequently Asked Questions (FAQ)

Q: Can the MC74LCX00DTR2G be used as a direct replacement in all applications?

A: The MC74LCX00DTR2G is functionally equivalent for applications operating within 2V to 3.6V supply voltage and -40°C to 85°C temperature range. Applications requiring supply voltages below 2V or operating temperatures above 85°C require alternative parts.

Q: What is the significance of the different quiescent current specifications?

A: The substitute part draws 10 µA maximum quiescent current compared to 40 µA for the original. This represents improved power efficiency and lower standby power consumption, which is advantageous for battery-powered or low-power applications.

Q: Are there package compatibility concerns?

A: Both parts use identical 14-TSSOP packaging with 0.173" width and 4.40mm dimensions. No PCB layout modifications are required for substitution.

Q: How does the propagation delay difference affect circuit performance?

A: The 0.4ns difference in maximum propagation delay (5.5ns vs. 5.1ns at 3.3V, 50pF load) is negligible for standard logic applications. High-speed timing-critical designs should verify this specification against system requirements.

Q: What compliance certifications apply to both parts?

A: Both the 74LVC00ADTR2G and MC74LCX00DTR2G are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. Both maintain MSL Level 1 (unlimited moisture sensitivity).