74ACT541PC Equivalent & Substitute Parts

Part Overview

The 74ACT541PC is a non-inverting buffer logic integrated circuit manufactured by onsemi, designed for 8-bit buffering applications with 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 20-pin DIP package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance, repairs, and legacy design support.

Substiute Parts

74ACT541PC

onsemiIn Stock: 303474ACT541PC Datasheet

Current PartRFQ

CD74ACT541E

Harris CorporationIn Stock: 15136CD74ACT541E Datasheet

SimilarRFQ

TC74ACT541PF

Toshiba Semiconductor and StorageIn Stock: 721TC74ACT541PF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACT541PC are qualified based on the following critical parameters:

• Logic type and function (Buffer, Non-Inverting)
• Number of elements (1) and bits per element (8)
• Output configuration (3-State)
• Output current capability (24mA, 24mA)
• Supply voltage range (4.5V ~ 5.5V)
• Package type and pin configuration (20-DIP)
• Mounting method (Through Hole)
• Base product number alignment (74ACT541)

Two substitute parts meet these electrical and mechanical requirements: the CD74ACT541E from Harris Corporation and the TC74ACT541PF from Toshiba Semiconductor and Storage.

Parameter Comparison

Engineering Selection Recommendations

Both CD74ACT541E and TC74ACT541PF satisfy the core electrical and mechanical substitution criteria for the 74ACT541PC. Selection between these alternatives depends on specific application requirements:

The TC74ACT541PF from Toshiba is the preferred choice for new designs and long-term availability due to its active product status and ROHS3 compliance. This part maintains identical electrical specifications and operating temperature range to the original 74ACT541PC while offering superior environmental and regulatory alignment.

The CD74ACT541E from Harris Corporation provides an alternative with extended operating temperature range (-55°C ~ 125°C), suitable for applications requiring broader thermal performance. However, this part carries obsolete status and RoHS non-compliance designation, limiting its applicability to legacy system maintenance where regulatory constraints are not applicable.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT541E and TC74ACT541PF be used interchangeably with the 74ACT541PC?

A: Both parts are electrically and mechanically compatible with the 74ACT541PC. All three components share identical logic function, output current capability, supply voltage range, and 20-DIP package configuration. Direct substitution is supported at the circuit board level without design modification.

Q: What is the difference in operating temperature range between these parts?

A: The 74ACT541PC and TC74ACT541PF operate across -40°C to 85°C. The CD74ACT541E extends this range to -55°C to 125°C, providing wider thermal coverage for applications requiring operation in extreme temperature environments.

Q: Are there compliance differences between the substitute parts?

A: The TC74ACT541PF is ROHS3 compliant, meeting current environmental regulations. The CD74ACT541E is RoHS non-compliant. The 74ACT541PC is REACH unaffected. Compliance requirements should be evaluated against your application and regional standards.

Q: Does product status affect substitution suitability?

A: Product status indicates availability and manufacturer support. The TC74ACT541PF maintains active status, ensuring continued availability and manufacturing support. Both the 74ACT541PC and CD74ACT541E are obsolete, which may impact long-term sourcing for high-volume requirements.

Q: Are the package dimensions identical across all three parts?

A: All three parts use the 20-DIP (0.300", 7.62mm) package with through-hole mounting. Pin configuration and physical dimensions are identical, enabling direct board-level substitution without layout modification.