74ACTQ02MTCX NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74ACTQ02MTCX is a NOR Gate IC featuring 4 channels with 2 inputs per channel in a 14-TSSOP surface mount package. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity. The part operates within a 4.5V to 5.5V supply voltage range and is suitable for logic-level applications requiring NOR gate functionality.

Substiute Parts

74ACTQ02MTCX

onsemiIn Stock: 68874ACTQ02MTCX Datasheet

Current PartRFQ

MC74ACT02DTR2G

onsemiIn Stock: 5780MC74ACT02DTR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACTQ02MTCX is determined by strict equivalence across the following critical parameters:

• Logic Type: NOR Gate configuration with identical 4-channel, 2-input architecture
• Voltage - Supply: 4.5V ~ 5.5V operating range
• Input Logic Levels: 0.8V (Low) and 2V (High) thresholds
• Output Current Capability: 24mA for both High and Low states
• Package / Case: 14-TSSOP form factor with identical physical dimensions
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Surface Mount

The MC74ACT02DTR2G meets all these criteria and is therefore a direct functional substitute for the obsolete 74ACTQ02MTCX.

Parameter Comparison

Engineering Selection Recommendations

The MC74ACT02DTR2G is the recommended substitute for the obsolete 74ACTQ02MTCX. Both parts are manufactured by onsemi and share identical logic functionality, electrical specifications, and physical packaging. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The MC74ACT02DTR2G carries RoHS3 compliance certification, providing additional environmental and regulatory assurance for new designs. Both parts maintain REACH Unaffected status and EAR99 export classification.

Minor differences exist in quiescent current (4 µA versus 2 µA) and maximum propagation delay (9.5ns versus 7.5ns at 5V, 50pF load). These differences remain within acceptable tolerances for standard logic applications and do not affect functional compatibility in circuits designed for the 74ACTQ02MTCX.

Frequently Asked Questions (FAQ)

Q: Can the MC74ACT02DTR2G be used as a direct replacement for the 74ACTQ02MTCX?

A: Yes. Both parts feature identical NOR gate logic configuration (4 channels, 2 inputs), matching supply voltage range (4.5V ~ 5.5V), input logic thresholds, output current capability, and 14-TSSOP package dimensions. The substitute is functionally equivalent for all standard applications.

Q: What are the differences between these two parts?

A: The primary differences are product status and quiescent current. The 74ACTQ02MTCX is obsolete, while the MC74ACT02DTR2G is in active production. Quiescent current is 2 µA for the 74ACTQ02MTCX and 4 µA for the MC74ACT02DTR2G. Maximum propagation delay differs slightly (7.5ns versus 9.5ns at 5V, 50pF), but both remain within acceptable logic timing specifications.

Q: Are the packages physically identical?

A: Yes. Both parts use the 14-TSSOP package with identical dimensions (0.173" width, 4.40mm). They are pin-compatible and can be used interchangeably on the same PCB layout.

Q: Does the MC74ACT02DTR2G meet current compliance standards?

A: Yes. The MC74ACT02DTR2G is RoHS3 compliant and maintains REACH Unaffected status. Both parts carry EAR99 export classification.

Q: What is the packaging format difference?

A: The 74ACTQ02MTCX is supplied in standard packaging, while the MC74ACT02DTR2G is supplied in Tape & Reel (TR) format. This affects procurement and handling but does not impact electrical or functional characteristics.