74ACT02MTC NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74ACT02MTC is a quad 2-input NOR gate logic IC manufactured by onsemi in a 14-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ACT02 series represents a standard logic gate function with consistent electrical characteristics across qualified manufacturers and package variants.

Substiute Parts

74ACT02MTC

onsemiIn Stock: 209874ACT02MTC Datasheet

Current PartRFQ

MC74ACT02DTR2G

onsemiIn Stock: 5780MC74ACT02DTR2G Datasheet

DirectRFQ

CD74ACT02M

Harris CorporationIn Stock: 3501CD74ACT02M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACT02MTC is determined by the following criteria:

Electrical Compatibility Requirements:

• Identical logic function (NOR gate, 4 channels, 2 inputs)
• Matching supply voltage range (4.5V to 5.5V)
• Compatible output current specifications (24mA minimum)
• Input logic levels within specified thresholds

Mechanical Compatibility Requirements:

• Surface mount technology
• Package form factor compatibility (14-pin configurations)
• Moisture sensitivity level MSL 1 or better

Acceptable Variations:

• Propagation delay within engineering tolerance (9.5ns to 12.2ns acceptable for non-critical timing applications)
• Operating temperature range extensions (wider ranges acceptable)
• Packaging format variations (Tape & Reel, Tube acceptable for equivalent function)
• RoHS compliance status (both compliant and non-compliant parts listed for reference)

Parameter Comparison

Engineering Selection Recommendations

MC74ACT02DTR2G (Primary Substitute): This part is the preferred substitute for the 74ACT02MTC. Both components are manufactured by onsemi, share identical electrical specifications, and are packaged in the same 14-TSSOP form factor. The MC74ACT02DTR2G maintains active product status and ROHS3 compliance, providing superior long-term availability and regulatory alignment. The Tape & Reel packaging format is suitable for automated assembly processes.

CD74ACT02M (Secondary Substitute): This Harris Corporation part provides functional equivalence with identical electrical parameters. The 14-SOIC package requires PCB layout modification compared to the 14-TSSOP footprint. The extended operating temperature range (-55°C to 125°C) accommodates wider environmental specifications. The propagation delay of 12.2ns is acceptable for applications where timing margins exceed 2.7ns. RoHS non-compliance status requires verification against project regulatory requirements. This part is suitable for applications where package footprint change is acceptable and extended temperature performance is beneficial.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT02DTR2G directly replace 74ACT02MTC on the PCB? A: Yes. Both parts use the 14-TSSOP package with identical pinout and electrical specifications. No circuit modifications are required.

Q: Is CD74ACT02M a direct PCB replacement? A: No. The CD74ACT02M uses a 14-SOIC package, which has different pin spacing and footprint dimensions than the 14-TSSOP. PCB layout modification is necessary.

Q: What is the difference in propagation delay between these parts? A: The 74ACT02MTC and MC74ACT02DTR2G both specify 9.5ns maximum delay. The CD74ACT02M specifies 12.2ns maximum delay. This 2.7ns difference is negligible for most logic applications but should be evaluated for timing-critical circuits.

Q: Are all three parts electrically interchangeable in function? A: Yes. All three parts implement the same NOR gate logic function with identical input/output electrical characteristics, supply voltage range, and current specifications.

Q: Which substitute offers the best long-term availability? A: MC74ACT02DTR2G, as it maintains active product status from onsemi and carries ROHS3 compliance certification.

Q: Can I use CD74ACT02M if my design requires RoHS compliance? A: No. CD74ACT02M is marked as RoHS non-compliant. MC74ACT02DTR2G is ROHS3 compliant and is the appropriate choice for RoHS-regulated applications.

Q: What is the moisture sensitivity level for all three parts? A: All three parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.