74ACT175SC Equivalent & Substitute Parts

Part Overview

The 74ACT175SC is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 4-bit configuration and complementary output type. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates as a master reset flip-flop with positive edge triggering in a 16-SOIC surface mount package.

Substiute Parts

74ACT175SC

onsemiIn Stock: 156274ACT175SC Datasheet

Current PartRFQ

CD74ACT175M96

Texas InstrumentsIn Stock: 3280CD74ACT175M96 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT175SC is determined by strict equivalence across the following critical parameters:

• Logic Series & Function: Both parts must belong to the 74ACT series and perform D-Type flip-flop master reset functionality
• Electrical Configuration: Identical number of elements (1), bits per element (4), output type (complementary), and trigger mechanism (positive edge)
• Package Compatibility: Both parts must use 16-SOIC (0.154", 3.90mm Width) surface mount packaging
• Supply Voltage Range: Operating voltage must be 4.5V ~ 5.5V
• Pin Configuration: Mechanical and electrical pin compatibility within the 16-SOIC package

The CD74ACT175M96 manufactured by Texas Instruments meets all substitution criteria as a functionally equivalent alternative within the 74ACT logic family.

Parameter Comparison

Engineering Selection Recommendations

The CD74ACT175M96 from Texas Instruments is a direct functional substitute for the 74ACT175SC. Selection of the Texas Instruments alternative provides the following advantages:

• Product Status: The CD74ACT175M96 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 74ACT175SC
• Regulatory Compliance: The CD74ACT175M96 is ROHS3 compliant, meeting current environmental and regulatory requirements
• Environmental Specifications: Extended operating temperature range (-55°C ~ 125°C) provides broader thermal operating envelope
• Power Efficiency: Lower quiescent current (8 µA versus 40 µA) reduces standby power consumption
• Packaging: Both parts utilize identical 16-SOIC surface mount packaging, enabling direct board-level substitution without layout modifications

All critical electrical parameters including supply voltage, output current capability, and trigger characteristics remain equivalent between the two parts.

Frequently Asked Questions (FAQ)

Q: Can the CD74ACT175M96 be used as a direct replacement for the 74ACT175SC in existing designs?

A: Yes. Both parts share identical logic function, pin configuration, package type (16-SOIC), and core electrical specifications. Direct substitution is possible without circuit redesign.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer (onsemi versus Texas Instruments), product status (obsolete versus active), and minor variations in clock frequency, quiescent current, and operating temperature range. The CD74ACT175M96 offers extended temperature operation and lower power consumption.

Q: Are there any compatibility concerns with the 16-SOIC package?

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

Q: Does the CD74ACT175M96 meet current regulatory standards?

A: Yes. The CD74ACT175M96 is ROHS3 compliant and maintains REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: What is the impact of the different clock frequency specifications?

A: The CD74ACT175M96 specifies 114 MHz maximum clock frequency compared to 236 MHz for the 74ACT175SC. For applications operating below 114 MHz, this difference has no practical impact. Applications requiring operation above 114 MHz should evaluate timing requirements against the CD74ACT175M96 specifications.

Q: Is the extended operating temperature range of the CD74ACT175M96 significant?

A: The CD74ACT175M96 operates from -55°C to 125°C compared to -40°C to 85°C for the 74ACT175SC. This extended range provides additional thermal margin for applications in extreme temperature environments.