74VHC595N Equivalent & Substitute Parts

Part Overview

The 74VHC595N is an 8-bit shift register with tri-state output, manufactured by onsemi in a 16-DIP package. This component functions as a serial-to-parallel converter, commonly used in digital logic applications requiring data shifting and parallel output control. The 74VHC595N is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The Texas Instruments SN74AHC595N serves as a direct functional equivalent with enhanced specifications and active product status.

Substiute Parts

74VHC595N

onsemiIn Stock: 70674VHC595N Datasheet

Current PartRFQ

SN74AHC595N

Texas InstrumentsIn Stock: 3197SN74AHC595N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC595N is determined by the following critical parameters:

• Logic Function: Both parts must implement 8-bit shift register functionality with serial-to-parallel conversion capability
• Output Configuration: Tri-state output requirement must be maintained
• Electrical Specifications: Supply voltage range of 2V ~ 5.5V ensures operational compatibility
• Physical Package: 16-DIP (0.300", 7.62mm) through-hole package is mandatory for direct board-level substitution
• Pin Count and Pinout: 16-pin configuration with identical pin assignments

The SN74AHC595N from Texas Instruments meets all substitution criteria, offering identical functional performance with improved operating temperature range and active product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74AHC595N is the appropriate substitute for the obsolete 74VHC595N. Both components share identical functional specifications, electrical parameters, and physical packaging. The SN74AHC595N provides additional advantages: active product status ensures long-term availability, ROHS3 compliance meets current environmental regulations, and the extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) accommodates broader application environments. Direct pin-for-pin substitution is supported without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC595N replace the 74VHC595N in existing designs? A: Yes. Both components are 8-bit shift registers with tri-state outputs in 16-DIP packages. Electrical specifications and pinout are identical, enabling direct substitution without circuit changes.

Q: What is the primary reason for substitution? A: The 74VHC595N is classified as obsolete. The SN74AHC595N maintains active product status, ensuring reliable supply chain availability and manufacturer support.

Q: Are there packaging differences between these parts? A: No. Both components use the 16-DIP (0.300", 7.62mm) through-hole package. Board-level compatibility is maintained.

Q: Does the extended temperature range of the SN74AHC595N affect compatibility? A: No. The SN74AHC595N operates across -40°C ~ 125°C, which encompasses the 74VHC595N operating range of -40°C ~ 85°C. This represents an enhancement with no compatibility concerns.

Q: Are compliance certifications different between the two parts? A: The SN74AHC595N carries ROHS3 compliance certification. Both components are REACH Unaffected and classified as EAR99 for export purposes.