CD74AC00EG4 NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD74AC00EG4 is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-DIP through-hole package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74AC series provides standard NAND gate functionality across industrial and commercial temperature ranges with consistent electrical performance across qualified manufacturers.

Substiute Parts

CD74AC00EG4

Texas InstrumentsIn Stock: 903CD74AC00EG4 Datasheet

Current PartRFQ

CD74AC00E

Harris CorporationIn Stock: 1564CD74AC00E Datasheet

MFR RecommendedRFQ

TC74AC00PF

Toshiba Semiconductor and StorageIn Stock: 2754TC74AC00PF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD74AC00EG4 is determined by the following critical parameters:

• Logic Function: All substitutes must implement 4-channel 2-input NAND gate logic
• Package Compatibility: 14-DIP through-hole package with 0.300" (7.62mm) pitch
• Electrical Specifications: Supply voltage range, output current capability, and propagation delay characteristics
• Temperature Rating: Operating temperature range must meet or exceed application requirements

The CD74AC00E (Harris Corporation) and TC74AC00PF (Toshiba Semiconductor) are qualified substitutes based on identical logic configuration, package form factor, and compatible electrical performance within the 74AC series standard.

Parameter Comparison

Engineering Selection Recommendations

TC74AC00PF (Toshiba) is the primary substitute for new designs and ongoing production. This part is currently active in production, ROHS3 compliant, and offers equivalent electrical performance with slightly improved propagation delay (7ns vs 7.3ns). The operating temperature range of -40°C ~ 85°C is suitable for standard commercial and industrial applications. Toshiba's active product status ensures long-term availability and supply chain stability.

CD74AC00E (Harris) is available as a secondary substitute with identical electrical specifications to the original CD74AC00EG4, including the extended temperature range of -55°C ~ 125°C. However, this part is obsolete and RoHS non-compliant, making it unsuitable for new designs or applications requiring environmental compliance certification.

For applications requiring the full -55°C ~ 125°C temperature range, verify that TC74AC00PF's -40°C ~ 85°C rating meets system requirements before selection.

Frequently Asked Questions (FAQ)

Q: Can TC74AC00PF replace CD74AC00EG4 in existing designs?

A: Yes. Both parts implement identical 4-channel 2-input NAND gate logic in 14-DIP packages with compatible electrical specifications. The TC74AC00PF operates within the -40°C ~ 85°C range; verify this meets your application's temperature requirements.

Q: What is the difference between the CD74AC00E and TC74AC00PF substitutes?

A: Both are functionally equivalent NAND gate ICs. The CD74AC00E (Harris) is obsolete and RoHS non-compliant. The TC74AC00PF (Toshiba) is active production, ROHS3 compliant, and recommended for new applications. The TC74AC00PF also provides marginally faster propagation delay (7ns vs 7.3ns).

Q: Are there package compatibility concerns when substituting these parts?

A: No. All three parts use identical 14-DIP (0.300", 7.62mm) through-hole packages. Direct board-level substitution is possible without layout modifications.

Q: Does the lower operating temperature range of TC74AC00PF affect compatibility?

A: The TC74AC00PF operates from -40°C ~ 85°C, compared to the original CD74AC00EG4 range of -55°C ~ 125°C. Substitution is valid only if your application operates within the -40°C ~ 85°C window. For extended temperature applications, the CD74AC00E maintains the full -55°C ~ 125°C range, though it is obsolete.

Q: What compliance certifications should I verify for new production?

A: TC74AC00PF is ROHS3 compliant and REACH unaffected, meeting current environmental standards. CD74AC00E is RoHS non-compliant and unsuitable for regulated applications.