CD74HC597M Equivalent & Substitute Parts

Part Overview

The CD74HC597M is an 8-bit shift register manufactured by Texas Instruments, designed for parallel or serial to serial data conversion in logic applications. This device operates across a 2V to 6V supply voltage range and is housed in a 16-SOIC surface mount package. The part is currently in Last Time Buy status, making identification of active equivalent and substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

CD74HC597M

Texas InstrumentsIn Stock: 2088CD74HC597M Datasheet

Current PartRFQ

CD74HC597M96

Texas InstrumentsIn Stock: 74360CD74HC597M96 Datasheet

MFR RecommendedRFQ

MC74HC597ADR2G

onsemiIn Stock: 32698MC74HC597ADR2G Datasheet

DirectRFQ

74HC597D,653

Nexperia USA Inc.In Stock: 3054874HC597D,653 Datasheet

MFR RecommendedRFQ

74HC74D,653

NXP SemiconductorsIn Stock: 100040474HC74D,653 Datasheet

MFR RecommendedRFQ

CD74HC166M

Texas InstrumentsIn Stock: 1579CD74HC166M Datasheet

Parametric EquivalentRFQ

MC74HC597ADG

onsemiIn Stock: 1800MC74HC597ADG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC597M is determined by strict equivalence across the following critical parameters: Logic Type (Shift Register), Number of Elements (1), Number of Bits per Element (8), Function (Parallel or Serial to Serial), Output Type (Push-Pull), Voltage Supply Range (2V ~ 6V), Package Type (16-SOIC), and Mounting Type (Surface Mount). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional interchangeability at the circuit level.

Substitutes are categorized as follows:

Direct Manufacturer Equivalents: Parts with identical base product number (74HC597) from alternative manufacturers, maintaining full electrical and mechanical compatibility.

MFR Recommended Equivalents: Parts from the original manufacturer (Texas Instruments) with alternative packaging configurations, suitable for procurement flexibility.

Parametric Equivalents: Parts with different base product numbers but identical functional parameters and package specifications, offering alternative sourcing options.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CD74HC597M96 (Texas Instruments) is the preferred substitute, offering identical electrical specifications and package configuration with Active product status and improved packaging availability through Cut Tape and Digi-Reel options.

Secondary Recommendations: MC74HC597ADR2G (onsemi) and MC74HC597ADG (onsemi) provide full functional equivalence with Active status and alternative packaging formats. Both maintain the complete 74HC597 base product specification.

Alternative Selection: 74HC597D,653 (Nexperia USA Inc.) offers functional equivalence with Active status. Note that the operating temperature range is narrower (-40°C ~ 125°C versus -55°C ~ 125°C), which may impact applications requiring extended low-temperature operation.

Not Recommended for New Designs: CD74HC166M is discontinued at DiGi Electronics and carries different base product numbering (74HC166), despite parametric equivalence. This part should not be selected for new procurement.

All recommended substitutes maintain ROHS3 compliance, Moisture Sensitivity Level 1, and identical supply voltage specifications, ensuring direct circuit-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can CD74HC597M96 be used as a direct replacement for CD74HC597M?

A: Yes. CD74HC597M96 maintains identical electrical specifications, functional parameters, and 16-SOIC package configuration. The difference is packaging format (Cut Tape & Digi-Reel versus Tube) and product status (Active versus Last Time Buy).

Q: What is the functional difference between the 74HC597 and 74HC166 base products?

A: Both are 8-bit shift registers with identical electrical parameters and package specifications. The CD74HC166M is listed as a parametric equivalent, indicating functional compatibility within the specified parameter set, though the base product number differs.

Q: Are there temperature range limitations when substituting 74HC597D,653?

A: The 74HC597D,653 operates from -40°C to 125°C, compared to the CD74HC597M range of -55°C to 125°C. Applications requiring operation below -40°C must use CD74HC597M, CD74HC597M96, MC74HC597ADR2G, or MC74HC597ADG.

Q: Does packaging format affect electrical performance?

A: No. Tube, Cut Tape, Digi-Reel, and Tape & Reel packaging formats contain identical die and electrical specifications. Packaging selection is determined by procurement volume, handling requirements, and assembly process compatibility.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 rating, matching the original CD74HC597M specifications.

Q: Which substitute offers the best long-term availability?

A: CD74HC597M96 (Texas Instruments, Active status) and MC74HC597ADR2G (onsemi, Active status) both carry Active product status with substantial inventory levels, providing optimal long-term procurement stability.