CD74ACT174M Equivalent & Substitute Parts

Part Overview

The CD74ACT174M is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for 6-bit parallel data storage and transfer applications. This component features a master reset function, positive edge triggering, and operates across a wide temperature range from -55°C to 125°C. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing design support and production continuity.

Substiute Parts

CD74ACT174M

Texas InstrumentsIn Stock: 1402CD74ACT174M Datasheet

Current PartRFQ

CD74ACT174M96

Harris CorporationIn Stock: 4337CD74ACT174M96 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74ACT174M is determined by strict equivalence across the following critical parameters:

• Base product number (74ACT174 logic family)
• Package type (16-SOIC surface mount)
• Electrical specifications (80 MHz clock frequency, 14 ns propagation delay, 4.5V–5.5V supply voltage)
• Functional characteristics (D-Type flip-flop, 6-bit configuration, positive edge trigger, non-inverted output)
• Output drive capability (24 mA high and low)
• Operating temperature range (-55°C to 125°C)

The CD74ACT174M96, manufactured by Harris Corporation, meets all these criteria and is classified as a direct substitute. Both parts share identical electrical performance, pinout, and mechanical compatibility within the 16-SOIC package footprint.

Parameter Comparison

Engineering Selection Recommendations

The CD74ACT174M96 from Harris Corporation is a direct functional and electrical equivalent to the Texas Instruments CD74ACT174M. Both components are rated for identical operating conditions and share the same 16-SOIC package footprint, ensuring PCB layout compatibility without modification.

The primary distinction between these parts relates to compliance status. The CD74ACT174M carries ROHS3 compliance certification, while the CD74ACT174M96 is classified as RoHS non-compliant. For applications subject to RoHS regulatory requirements, the Texas Instruments part remains the preferred choice. For applications without RoHS mandates, the Harris Corporation substitute provides equivalent performance and functionality.

Both parts are classified as obsolete or discontinued, reflecting the maturity of the 74ACT174 logic family. Component selection should prioritize available inventory and supply chain accessibility.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT174M96 be used as a direct replacement for the CD74ACT174M?

A: Yes. Both parts share identical electrical specifications, pinout configuration, and 16-SOIC package dimensions. No circuit modifications or PCB redesign is required for substitution.

Q: What is the significance of the RoHS compliance difference?

A: The CD74ACT174M is ROHS3 compliant, while the CD74ACT174M96 is RoHS non-compliant. Applications subject to RoHS directives must use the Texas Instruments part. Applications without RoHS requirements can use either part.

Q: Are there any package or pinout differences between these parts?

A: No. Both components use the 16-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and mechanical dimensions.

Q: What is the operating temperature range for both parts?

A: Both the CD74ACT174M and CD74ACT174M96 operate across -55°C to 125°C (TA), supporting industrial and extended temperature applications.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is determined by matching the base product number (74ACT174), clock frequency (80 MHz), propagation delay (14 ns @ 5V, 50pF), supply voltage range (4.5V–5.5V), output drive capability (24 mA), and operating temperature range (-55°C to 125°C).