SN74AHCT595D Equivalent & Substitute Parts

Part Overview

The SN74AHCT595D is an 8-bit shift register manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This component functions as a serial-to-parallel converter with tri-state output capability, operating across a 4.5V to 5.5V supply voltage range and -40°C to 85°C temperature range. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

SN74AHCT595D

Texas InstrumentsIn Stock: 2007SN74AHCT595D Datasheet

Current PartRFQ

SN74AHCT595DR

Texas InstrumentsIn Stock: 12852SN74AHCT595DR Datasheet

DirectRFQ

74AHCT595D,112

Nexperia USA Inc.In Stock: 89374AHCT595D,112 Datasheet

MFR RecommendedRFQ

74AHCT595D,118

Nexperia USA Inc.In Stock: 338474AHCT595D,118 Datasheet

MFR RecommendedRFQ

74AHCT595S16-13

Diodes IncorporatedIn Stock: 790474AHCT595S16-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74AHCT595D is determined by strict equivalence across the following parameters: logic type (shift register), bit configuration (8-bit, single element), output type (tri-state), supply voltage range (4.5V ~ 5.5V), package type (16-SOIC), and mounting method (surface mount). All identified substitutes maintain these core electrical and mechanical specifications. Packaging format (tube versus tape & reel) and product status (active versus discontinued/obsolete) do not affect functional interchangeability but influence availability and procurement strategy.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the SN74AHCT595D, the SN74AHCT595DR represents the primary direct substitute, maintaining identical electrical specifications and operating temperature range while offering active product status and superior availability in tape & reel packaging. Both Nexperia variants (74AHCT595D,112 and 74AHCT595D,118) provide extended operating temperature capability (-40°C to 125°C versus -40°C to 85°C), which exceeds the original specification and ensures compatibility in wider thermal environments. The 74AHCT595S16-13 from Diodes Incorporated similarly meets all functional requirements with extended temperature range and active status.

Selection priority should follow product status: active parts (SN74AHCT595DR, 74AHCT595D,118, 74AHCT595S16-13) are preferred over obsolete or discontinued variants. All candidates maintain ROHS3 compliance and MSL-1 rating, ensuring regulatory and moisture handling consistency with the original part.

Frequently Asked Questions (FAQ)

Q: Can I directly replace SN74AHCT595D with SN74AHCT595DR? A: Yes. Both parts are manufactured by Texas Instruments, share identical electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operation), and use the 16-SOIC package. The only difference is packaging format (tube versus tape & reel). Functional interchangeability is complete.

Q: What is the significance of the extended temperature range in Nexperia and Diodes variants? A: The Nexperia (74AHCT595D,112 and 74AHCT595D,118) and Diodes (74AHCT595S16-13) parts operate to -40°C ~ 125°C, compared to the original -40°C ~ 85°C. This extended upper temperature limit provides additional thermal margin and is fully backward compatible with applications designed for the narrower range.

Q: Are there differences between 74AHCT595D,112 and 74AHCT595D,118? A: Both are Nexperia parts with identical electrical and thermal specifications. The difference is packaging format: 74AHCT595D,112 is supplied in tubes, while 74AHCT595D,118 is supplied in tape & reel. Functional performance is equivalent.

Q: Why is the SN74AHCT595D listed as discontinued? A: Discontinuation at DiGi Electronics reflects supplier inventory decisions, not product obsolescence. The SN74AHCT595DR (same base part, tape & reel packaging) remains active and available from Texas Instruments.

Q: Do all substitutes maintain RoHS3 compliance? A: Yes. All listed alternatives are ROHS3 compliant with MSL-1 rating, matching the original part's regulatory and environmental specifications.

Q: Can I use 74AHCT595D,112 (obsolete status) in new designs? A: While functionally equivalent, obsolete parts present long-term supply risk. Active alternatives (SN74AHCT595DR, 74AHCT595D,118, 74AHCT595S16-13) are recommended for new designs to ensure sustained availability.