CD74AC32EG4 Equivalent & Substitute Parts

Part Overview

The CD74AC32EG4 is a 4-channel OR gate logic IC manufactured by Texas Instruments, housed in a 14-pin DIP package. This component is discontinued at DiGi Electronics and classified as obsolete in current distribution channels. The part operates across a wide supply voltage range (1.5V to 5.5V) and is suitable for digital logic applications requiring OR gate functionality. Due to its discontinued status, identifying functionally equivalent substitute parts is necessary for design continuity and procurement planning.

Substiute Parts

CD74AC32EG4

Texas InstrumentsIn Stock: 744CD74AC32EG4 Datasheet

Current PartRFQ

CD74AC32E

Harris CorporationIn Stock: 2628CD74AC32E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74AC32EG4 is determined by the following critical parameters:

• Logic Function: OR gate with 4 channels and 2 inputs per channel
• Electrical Specifications: Supply voltage range (1.5V ~ 5.5V), quiescent current (4 µA max), output current (24mA), and propagation delay (9.5ns @ 5V, 50pF)
• Package Configuration: 14-pin DIP through-hole mounting
• Series Compatibility: 74AC logic family

The CD74AC32E from Harris Corporation meets all functional and electrical requirements specified for the CD74AC32EG4. Both parts share identical logic specifications, electrical performance characteristics, and physical packaging, making them direct functional equivalents within the 74AC series.

Parameter Comparison

Engineering Selection Recommendations

The CD74AC32E is a direct functional equivalent to the CD74AC32EG4. Both parts are classified as obsolete or discontinued, indicating limited availability in current distribution channels. The CD74AC32E is currently available in higher inventory quantities (2520 pieces) compared to the CD74AC32EG4 (715 pieces).

Compliance considerations differ between the two parts: the CD74AC32EG4 is ROHS3 compliant with REACH unaffected status, while the CD74AC32E is RoHS non-compliant. For applications subject to RoHS or REACH regulatory requirements, compliance status must be verified against project specifications before selection.

Both parts are packaged in tube format and share identical electrical performance, logic functionality, and physical dimensions, ensuring direct pin-for-pin compatibility in 14-DIP through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the CD74AC32E replace the CD74AC32EG4 in existing designs?

A: Yes. Both parts are functionally equivalent 4-channel OR gates with identical electrical specifications, logic performance, and 14-DIP package dimensions. Pin-for-pin compatibility is confirmed.

Q: What is the difference between these two parts?

A: The primary differences are manufacturer (Texas Instruments vs. Harris Corporation), product status (discontinued vs. obsolete), inventory availability, and RoHS compliance status. Electrical and functional specifications are identical.

Q: Are there any compliance concerns when substituting these parts?

A: The CD74AC32EG4 is ROHS3 compliant, while the CD74AC32E is RoHS non-compliant. Applications requiring RoHS compliance must account for this difference. REACH status also differs between the two parts.

Q: Is the 14-DIP package the same for both parts?

A: Yes. Both parts use the 14-DIP (0.300", 7.62mm) through-hole package with identical pin configuration and spacing.

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

A: Supply voltage range (1.5V ~ 5.5V), quiescent current (4 µA max), output current (24mA), propagation delay (9.5ns @ 5V, 50pF), and operating temperature range (-55°C ~ 125°C) are the critical parameters. Both parts match on all specifications.