74HCT597D,652 Equivalent & Substitute Parts

Part Overview

The 74HCT597D,652 is an 8-bit shift register manufactured by Nexperia USA Inc., designed for parallel-to-serial or serial-to-serial data conversion in logic applications. This component operates at 4.5V to 5.5V supply voltage with a 16-SOIC surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

74HCT597D,652

Nexperia USA Inc.In Stock: 111474HCT597D,652 Datasheet

Current PartRFQ

CD74HCT597M

Harris CorporationIn Stock: 5590CD74HCT597M Datasheet

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CD74HCT597M96

Texas InstrumentsIn Stock: 2062CD74HCT597M96 Datasheet

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CD74HCT597MT

Texas InstrumentsIn Stock: 1647CD74HCT597MT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HCT597D,652 are qualified based on the following critical parameters:

• Logic Type & Function: All substitutes must be shift registers with parallel-to-serial or serial-to-serial conversion capability
• Bit Configuration: 1 element, 8 bits per element
• Output Characteristics: Push-pull output type
• Electrical Specifications: 4.5V to 5.5V supply voltage range
• Package Compatibility: 16-SOIC surface mount package with 0.154" (3.90mm) width
• Base Product Number: 74HCT597 series designation

The following parts meet these substitution criteria: CD74HCT597M (Harris Corporation), CD74HCT597M96 (Texas Instruments), and CD74HCT597MT (Texas Instruments).

Parameter Comparison

Engineering Selection Recommendations

CD74HCT597M96 (Texas Instruments) is the primary recommended substitute. This part maintains active product status, carries ROHS3 compliance certification matching the original part, and provides an extended operating temperature range (-55°C to 125°C) that encompasses the original specification. The part is available in Tape & Reel packaging with confirmed inventory.

CD74HCT597MT (Texas Instruments) serves as a secondary option. Although classified as Last Time Buy, this part meets all electrical and mechanical compatibility requirements, maintains ROHS3 compliance, and offers the same extended temperature range as CD74HCT597M96.

CD74HCT597M (Harris Corporation) is not recommended for new designs due to RoHS non-compliance status, despite meeting all electrical and mechanical parameters. This part may be considered only for legacy system maintenance where RoHS compliance is not a requirement.

Frequently Asked Questions (FAQ)

Q: Can CD74HCT597M96 be used as a direct replacement for 74HCT597D,652?

A: Yes. Both parts share identical logic type, bit configuration, output characteristics, supply voltage range, and 16-SOIC package dimensions. The substitute offers an extended operating temperature range and maintains current product status with active availability.

Q: What is the difference between CD74HCT597M96 and CD74HCT597MT?

A: Both parts are manufactured by Texas Instruments and meet all substitution criteria. The primary difference is product lifecycle status: CD74HCT597M96 is active, while CD74HCT597MT is Last Time Buy. Both provide identical electrical performance and compliance certifications.

Q: Why is CD74HCT597M not recommended despite meeting electrical specifications?

A: CD74HCT597M does not carry ROHS3 compliance certification, whereas the original 74HCT597D,652 is ROHS3 compliant. For applications requiring regulatory compliance with current environmental standards, this part is unsuitable for new implementations.

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

A: No. All substitute parts use the 16-SOIC surface mount package with 0.154" (3.90mm) width, ensuring mechanical and electrical compatibility without PCB redesign.

Q: What is the moisture sensitivity level for these parts?

A: CD74HCT597M96 and CD74HCT597MT both carry MSL 1 (Unlimited) rating, matching the original part specification. CD74HCT597M does not specify this parameter.