CD74AC00EE4 Equivalent & Substitute Parts

Part Overview

The CD74AC00EE4 is a NAND Gate IC manufactured by Texas Instruments, featuring 4 channels with 2 inputs per channel in a 14-PDIP package. This logic component operates across a wide supply voltage range of 1.5V to 5.5V and is classified as an Active product with full RoHS3 compliance. The part is suitable for digital logic applications requiring standard NAND gate functionality with moderate propagation delay characteristics.

Substitute parts become necessary when the primary part experiences supply constraints, when design requirements mandate specific manufacturer certifications, or when inventory availability impacts project timelines. The CD74AC00E represents a parametrically equivalent alternative with identical electrical and mechanical specifications, though with different manufacturer origin and compliance status.

Substiute Parts

CD74AC00EE4

Texas InstrumentsIn Stock: 998CD74AC00EE4 Datasheet

Current PartRFQ

CD74AC00E

Harris CorporationIn Stock: 1564CD74AC00E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74AC00EE4 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Logic Type: NAND Gate (4 channels, 2 inputs per channel)
• Supply Voltage Range: 1.5V ~ 5.5V
• Quiescent Current: 4 µA maximum
• Output Current Capability: 24mA high and low
• Input Logic Levels: 0.3V ~ 1.65V (low), 1.2V ~ 3.85V (high)
• Propagation Delay: 7.3ns @ 5V, 50pF load

Mechanical Equivalence Criteria:

• Package Type: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Supplier Device Package: 14-PDIP

Series Compatibility:

• Base Series: 74AC

The CD74AC00E meets all electrical and mechanical equivalence criteria. However, product status and compliance certifications differ between the main part and substitute, which may influence selection based on application requirements and regulatory constraints.

Parameter Comparison

Engineering Selection Recommendations

CD74AC00EE4 (Texas Instruments) - Primary Selection: This part is the recommended choice for new designs and applications with active product requirements. The CD74AC00EE4 carries Active product status and full RoHS3 compliance, ensuring long-term availability and regulatory alignment with current environmental standards. This part is suitable for applications subject to RoHS directives and where manufacturer continuity is a design constraint.

CD74AC00E (Harris Corporation) - Conditional Substitute: The CD74AC00E is electrically and mechanically equivalent across all specified parameters. However, this part carries Obsolete product status and is RoHS non-compliant. Selection of this substitute is limited to legacy system maintenance, repair applications, or situations where existing inventory must be utilized. The obsolete status indicates no ongoing manufacturing support from Harris Corporation. The RoHS non-compliance status restricts use in applications subject to RoHS regulations or where compliance documentation is required for supply chain qualification.

Selection Criteria:

• For new designs: Use CD74AC00EE4
• For legacy system repair with existing inventory: CD74AC00E is electrically compatible
• For RoHS-regulated applications: CD74AC00EE4 only
• For long-term supply assurance: CD74AC00EE4 only

Frequently Asked Questions (FAQ)

Q: Can CD74AC00E replace CD74AC00EE4 in a new design?

A: From an electrical and mechanical standpoint, the CD74AC00E is parametrically equivalent. However, the CD74AC00E is classified as Obsolete with no active manufacturing support. New designs should specify CD74AC00EE4 to ensure long-term component availability and supply chain stability.

Q: What is the difference in RoHS compliance between these parts?

A: CD74AC00EE4 is ROHS3 compliant, meeting current environmental regulations. CD74AC00E is RoHS non-compliant. Applications subject to RoHS directives, EU regulations, or customer compliance requirements must use CD74AC00EE4.

Q: Are the electrical characteristics identical?

A: Yes. Both parts share identical specifications for supply voltage (1.5V ~ 5.5V), quiescent current (4 µA max), output current (24mA), input logic levels, propagation delay (7.3ns @ 5V, 50pF), and operating temperature range (-55°C ~ 125°C).

Q: Can these parts be used interchangeably in PCB layouts?

A: Yes. Both parts use the same 14-DIP (0.300", 7.62mm) package with Through Hole mounting. PCB footprints and board layouts are identical.

Q: Why is CD74AC00E listed as Obsolete?

A: Obsolete status indicates that Harris Corporation has discontinued active manufacturing and support for this part number. Existing inventory may be available from distributors, but no new production is guaranteed.

Q: What should I do if I have CD74AC00E inventory but need RoHS compliance?

A: Transition to CD74AC00EE4 for new production runs and applications requiring RoHS compliance. Existing CD74AC00E inventory can be reserved for legacy system maintenance or non-regulated applications.

Q: Are there any performance differences in timing or thermal characteristics?

A: No. Both parts specify identical propagation delay (7.3ns @ 5V, 50pF) and operating temperature range (-55°C ~ 125°C). Thermal and timing performance are equivalent.