CD74HC595NS 8-Bit Shift Register Equivalent & Substitute Parts

Part Overview

The CD74HC595NS is an 8-bit shift register manufactured by Texas Instruments, designed for serial-to-parallel data conversion applications. This component features tri-state output configuration and operates across a 2V to 6V supply voltage range. The CD74HC595NS is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

CD74HC595NS

Texas InstrumentsIn Stock: 776CD74HC595NS Datasheet

Current PartRFQ

SN74HC595NSR

Texas InstrumentsIn Stock: 2829SN74HC595NSR Datasheet

DirectRFQ

74HC595D,118

Nexperia USA Inc.In Stock: 100014774HC595D,118 Datasheet

MFR RecommendedRFQ

MM74HC595M

onsemiIn Stock: 2178MM74HC595M Datasheet

MFR RecommendedRFQ

MM74HC595MX

onsemiIn Stock: 1442MM74HC595MX Datasheet

MFR RecommendedRFQ

MC74HC595AFL1

onsemiIn Stock: 11884MC74HC595AFL1 Datasheet

Parametric EquivalentRFQ

MC74HC595AFL2

onsemiIn Stock: 8817MC74HC595AFL2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC595NS is determined by strict alignment with the following core parameters:

• Logic Function: All substitutes must perform 8-bit shift register operation with serial-to-parallel conversion capability
• Output Configuration: Tri-state output requirement must be maintained
• Supply Voltage: 2V to 6V operating range
• Mounting and Package: Surface mount configuration in 16-SOIC package form factor
• Compliance: ROHS3 compliance and EAR99 export classification
• Series Compatibility: 74HC logic family designation

Substitute parts are categorized as follows:

Direct Manufacturer Substitutes (identical electrical and mechanical specifications): SN74HC595NSR (Texas Instruments, active status)

Manufacturer Recommended Equivalents (active production, minor package dimension variations within 16-SOIC specification): 74HC595D,118 (Nexperia), MM74HC595M and MM74HC595MX (onsemi)

Parametric Equivalents (extended temperature range, alternative packaging format): MC74HC595AFL1 and MC74HC595AFL2 (onsemi)

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SN74HC595NSR is the direct equivalent from Texas Instruments with active product status. This part maintains identical electrical specifications and package dimensions (0.209", 5.30mm width) to the CD74HC595NS, ensuring drop-in compatibility for existing designs.

Alternative Selections for Active Production:

74HC595D,118 (Nexperia) offers extended operating temperature range (-40°C to 125°C) compared to the original specification, with package dimension variation (0.154", 3.90mm width). This part is suitable for applications where the narrower package footprint is acceptable and extended high-temperature performance is beneficial.

MM74HC595M and MM74HC595MX (onsemi) provide active production status with operating temperature range of -40°C to 85°C. Both parts feature the narrower 16-SOIC package (0.154", 3.90mm width). MM74HC595MX is available in cut tape and digi-reel packaging, while MM74HC595M is supplied in tube format.

Extended Temperature Range Options:

MC74HC595AFL1 and MC74HC595AFL2 (onsemi) maintain the original operating temperature specification (-55°C to 125°C) with active product status. Both parts are supplied in bulk packaging with 16-SOEIAJ package designation and feature MSL rating of 3 (168 hours). These parts are suitable for applications requiring the full temperature range of the original CD74HC595NS.

All substitute parts maintain ROHS3 compliance, EAR99 export classification, and tri-state output configuration required for functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can SN74HC595NSR be used as a direct replacement for CD74HC595NS?

A: Yes. SN74HC595NSR is manufactured by Texas Instruments and maintains identical electrical specifications, supply voltage range (2V to 6V), tri-state output configuration, and package dimensions (16-SOIC, 0.209" width). The part is pin-compatible and functionally equivalent for serial-to-parallel shift register applications.

Q: What is the difference between the 0.209" and 0.154" package width variants?

A: Both are 16-SOIC packages but differ in body width. The 0.209" width (CD74HC595NS, SN74HC595NSR, MC74HC595AFL1, MC74HC595AFL2) represents the wider SOIC variant, while the 0.154" width (74HC595D,118, MM74HC595M, MM74HC595MX) represents the narrower SOIC variant. PCB footprint compatibility must be verified before substitution.

Q: Are there temperature range differences between substitute parts?

A: Yes. The original CD74HC595NS operates from -55°C to 125°C. SN74HC595NSR, MM74HC595M, and MM74HC595MX operate from -40°C to 85°C, providing a narrower range. The 74HC595D,118 extends to -40°C to 125°C. MC74HC595AFL1 and MC74HC595AFL2 maintain the full -55°C to 125°C range. Application temperature requirements must be evaluated for each substitute.

Q: What does MSL rating 3 (168 hours) mean for MC74HC595AFL1 and MC74HC595AFL2?

A: MSL (Moisture Sensitivity Level) 3 indicates the component requires controlled storage conditions and has a 168-hour floor life after moisture barrier bag opening. This differs from MSL 1 (unlimited) parts which have no time restrictions. Proper moisture control during storage and assembly is required for these parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, consistent with the original CD74HC595NS specification.

Q: Which substitute offers the best availability?

A: 74HC595D,118 (Nexperia) shows the highest inventory level at 1,000,100 pieces. SN74HC595NSR (Texas Instruments) has 2,737 pieces available. MC74HC595AFL1 and MC74HC595AFL2 (onsemi) have 11,873 and 8,746 pieces respectively.