SN74AHC595D Equivalent & Substitute Parts

Part Overview

The SN74AHC595D is an 8-bit shift register with tri-state output in a 16-SOIC surface mount package, manufactured by Texas Instruments. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The shift register converts serial input data to parallel output, supporting supply voltages from 2V to 5.5V and operating temperatures from -40°C to 125°C. Substitute parts must maintain functional equivalence in logic type, bit configuration, output characteristics, and package form factor.

Substiute Parts

SN74AHC595D

Texas InstrumentsIn Stock: 4203SN74AHC595D Datasheet

Current PartRFQ

SN74AHC595DR

Texas InstrumentsIn Stock: 3493SN74AHC595DR Datasheet

DirectRFQ

74VHC595M

Fairchild SemiconductorIn Stock: 360074VHC595M Datasheet

DirectRFQ

74VHC595MX

onsemiIn Stock: 909774VHC595MX Datasheet

DirectRFQ

MC74VHC595DR2G

onsemiIn Stock: 3444MC74VHC595DR2G Datasheet

UpgradeRFQ

74AHC595D,118

Nexperia USA Inc.In Stock: 2426874AHC595D,118 Datasheet

MFR RecommendedRFQ

74AHC595S16-13

Diodes IncorporatedIn Stock: 2286374AHC595S16-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74AHC595D is determined by strict equivalence in the following parameters:

• Logic Type: Shift Register (8-bit, 1 element)
• Output Type: Tri-State
• Function: Serial to Parallel conversion capability
• Voltage Supply Range: 2V ~ 5.5V minimum
• Package / Case: 16-SOIC form factor
• Mounting Type: Surface Mount
• RoHS3 Compliance and MSL Level 1 rating

Substitute parts are grouped into three categories based on product status and manufacturer recommendation:

Direct Substitutes (Active Status): Parts with identical electrical specifications and active product status, suitable for direct replacement in new designs and production.

Upgrade Options (Enhanced Specifications): Parts with extended operating temperature range or additional performance characteristics while maintaining core functional equivalence.

Manufacturer Recommended Alternatives: Parts designated by manufacturers as preferred alternatives, offering high inventory availability and active support.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): SN74AHC595DR (Texas Instruments) maintains full electrical and thermal equivalence to the discontinued SN74AHC595D, with active product status and identical operating temperature range (-40°C to 125°C). This part is the primary recommendation for applications requiring no design modification.

For Manufacturer-Recommended Alternatives: 74AHC595D,118 (Nexperia USA Inc.) and 74AHC595S16-13 (Diodes Incorporated) are designated manufacturer alternatives with active status, matching temperature specifications, and high inventory availability. Both are ROHS3 compliant with MSL Level 1 rating.

For Extended Temperature Range Applications: MC74VHC595DR2G (onsemi) extends the lower operating temperature to -55°C while maintaining the upper limit at 125°C, providing enhanced performance for extreme environment applications. This part is suitable for designs requiring wider temperature coverage.

For Standard Industrial Applications: 74VHC595MX (onsemi) offers active status and ROHS3 compliance with adequate temperature range (-40°C to 85°C) for most industrial applications. This part provides cost-effective substitution where the full -40°C to 125°C range is not required.

All recommended substitutes maintain RoHS3 compliance, MSL Level 1 rating, and functional equivalence in shift register operation, tri-state output control, and serial-to-parallel conversion.

Frequently Asked Questions (FAQ)

Q: Can 74VHC595M and 74VHC595MX be used interchangeably with SN74AHC595D? A: Both parts are functionally equivalent shift registers with tri-state output in 16-SOIC packages. However, they operate at a maximum temperature of 85°C compared to the original part's 125°C. Use these substitutes only in applications where the lower temperature limit is acceptable.

Q: What is the difference between SN74AHC595DR and 74AHC595D,118? A: Both parts are electrically identical 8-bit shift registers with matching voltage supply (2V ~ 5.5V) and operating temperature (-40°C ~ 125°C) specifications. The primary difference is manufacturer: SN74AHC595DR is from Texas Instruments, while 74AHC595D,118 is from Nexperia USA Inc. Selection depends on supplier availability and procurement preferences.

Q: Is MC74VHC595DR2G suitable for all applications using SN74AHC595D? A: MC74VHC595DR2G is suitable for applications requiring extended lower temperature operation (-55°C minimum). For standard applications operating within -40°C to 85°C, this upgrade is not necessary. The part maintains full functional equivalence and is ROHS3 compliant.

Q: Are all substitute parts available in the same packaging format? A: All substitute parts use the 16-SOIC surface mount package with 0.154" width (3.90mm). Packaging formats differ in tape & reel (TR) or cut tape (CT) configurations, which affect handling and assembly processes but not electrical performance.

Q: What compliance certifications apply to these substitute parts? A: All recommended substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original SN74AHC595D specifications. REACH status is unaffected for all parts listed.