CD74ACT02EE4 Equivalent & Substitute Parts

Part Overview

The CD74ACT02EE4 is a NOR Gate IC featuring 4 channels with 2 inputs per channel, housed in a 14-PDIP package. Manufactured by Texas Instruments, this logic component operates within the 74ACT series and is classified as an active product. The device is designed for through-hole mounting applications and complies with ROHS3 standards.

Substitute parts become necessary when the primary part experiences supply constraints, inventory depletion, or when design requirements permit the use of functionally equivalent alternatives from different manufacturers. The CD74ACT02E, manufactured by Harris Corporation, represents a parametric equivalent option, though it carries an obsolete product status and does not meet current RoHS compliance requirements.

Substiute Parts

CD74ACT02EE4

Texas InstrumentsIn Stock: 1098CD74ACT02EE4 Datasheet

Current PartRFQ

CD74ACT02E

Harris CorporationIn Stock: 5584CD74ACT02E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74ACT02EE4 is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Logic Type: NOR Gate
• Number of Circuits: 4
• Number of Inputs: 2 per circuit
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Quiescent (Max): 4 µA
• Current - Output High, Low: 24mA, 24mA
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Max Propagation Delay @ V, Max CL: 12.2ns @ 5V, 50pF
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The CD74ACT02E qualifies as a parametric equivalent because all electrical characteristics, logic configuration, and physical packaging specifications match the primary part exactly. Both devices belong to the 74ACT series and share identical functional specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CD74ACT02EE4

The CD74ACT02EE4 is the preferred component for new designs and applications requiring current product support. This part maintains active product status with Texas Instruments and meets ROHS3 compliance requirements, ensuring alignment with modern environmental and regulatory standards. Current inventory availability is 1017 pieces.

Alternative Selection: CD74ACT02E

The CD74ACT02E presents a parametric equivalent option with identical electrical and mechanical specifications. However, this part carries an obsolete product status and does not comply with RoHS standards. Selection of this substitute should be limited to legacy system maintenance, repair applications, or situations where regulatory compliance is not a requirement. Inventory availability is 5523 pieces.

Compliance Consideration:

Applications subject to RoHS directives, REACH regulations, or requiring components with active manufacturer support must use the CD74ACT02EE4. The CD74ACT02E is suitable only for non-regulated applications or systems where obsolete component use is explicitly permitted.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT02E be used as a direct replacement for the CD74ACT02EE4?

A: The CD74ACT02E is electrically and mechanically equivalent to the CD74ACT02EE4. Both devices share identical logic configuration, electrical specifications, and 14-DIP packaging. However, the CD74ACT02E is obsolete and non-compliant with RoHS standards. Direct substitution is possible only in applications where regulatory compliance and active product support are not required.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching the following parameters: logic type (NOR Gate), number of circuits (4), number of inputs (2), supply voltage range (4.5V ~ 5.5V), quiescent current (4 µA), output current specifications (24mA, 24mA), input logic levels (0.8V low, 2V high), propagation delay (12.2ns @ 5V, 50pF), operating temperature range (-55°C ~ 125°C), and package type (14-DIP through-hole).

Q: Are there any differences in pin configuration between these parts?

A: Both the CD74ACT02EE4 and CD74ACT02E use the 14-DIP package with identical pin assignments. No modifications to PCB layout or circuit connections are required when substituting between these parts.

Q: What is the significance of the product status difference?

A: The CD74ACT02EE4 maintains active product status, indicating ongoing manufacturer support, availability of technical documentation, and continued production. The CD74ACT02E is classified as obsolete, meaning Harris Corporation no longer manufactures or actively supports this component. Active products are preferred for new designs.

Q: Does RoHS compliance affect functional performance?

A: RoHS compliance does not alter the functional performance or electrical characteristics of the device. The compliance status reflects manufacturing process standards and material composition. The CD74ACT02EE4 meets ROHS3 requirements, while the CD74ACT02E does not. Selection should be based on application regulatory requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, from a functional and mechanical standpoint, these parts are interchangeable. However, design documentation and component specifications should be updated to reflect the actual part used. For applications requiring RoHS compliance or active manufacturer support, the CD74ACT02EE4 is the appropriate choice.