SN74HC165D 8-Bit Shift Register Equivalent & Substitute Parts

Part Overview

The SN74HC165D is an 8-bit parallel-in/serial-out shift register manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74HC165 logic family provides parallel or serial to serial conversion functionality with complementary output configuration, operating across a 2V to 6V supply voltage range and -40°C to 125°C temperature range.

Substiute Parts

SN74HC165D

Texas InstrumentsIn Stock: 3004SN74HC165D Datasheet

Current PartRFQ

SN74HC165DR

Texas InstrumentsIn Stock: 5457SN74HC165DR Datasheet

DirectRFQ

MC74HC165ADR2G

onsemiIn Stock: 305206MC74HC165ADR2G Datasheet

DirectRFQ

74HC165D,653

Nexperia USA Inc.In Stock: 35177474HC165D,653 Datasheet

MFR RecommendedRFQ

74HC165D-Q100,118

Nexperia USA Inc.In Stock: 106174HC165D-Q100,118 Datasheet

MFR RecommendedRFQ

MC74HC165ADG

onsemiIn Stock: 5719MC74HC165ADG Datasheet

MFR RecommendedRFQ

NLV74HC165ADR2G

onsemiIn Stock: 30138NLV74HC165ADR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC165D is determined by strict equivalence across the following critical parameters:

• Logic Type: Shift Register (8-bit configuration)
• Output Type: Complementary
• Function: Parallel or Serial to Serial conversion
• Package / Case: 16-SOIC form factor
• Voltage - Supply: 2V ~ 6V range
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in operating temperature range, packaging format (tube vs. cut tape vs. tape & reel), product status, and manufacturer do not affect functional interchangeability at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the discontinued SN74HC165D, the SN74HC165DR from Texas Instruments is the primary substitute, maintaining identical electrical specifications and operating temperature range while offering active product status and improved availability in cut tape and Digi-Reel packaging formats.

The MC74HC165ADR2G and MC74HC165ADG from onsemi provide functionally equivalent alternatives with extended lower operating temperature range (-55°C vs. -40°C), suitable for applications requiring enhanced cold-temperature performance. Both onsemi variants maintain active product status.

The 74HC165D,653 from Nexperia USA Inc. offers equivalent specifications with active product status and high inventory availability in cut tape format, making it suitable for high-volume production requirements.

The 74HC165D-Q100,118 from Nexperia USA Inc. includes AEC-Q100 automotive qualification, appropriate for automotive-grade applications requiring formal qualification documentation.

The NLV74HC165ADR2G from onsemi carries obsolete product status and should be avoided for new designs, though it remains functionally equivalent for legacy system maintenance where existing stock is available.

Frequently Asked Questions (FAQ)

Q: Can I substitute SN74HC165D with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts maintain identical logic type, output configuration, bit width, function, supply voltage range, and 16-SOIC package dimensions. Direct pin-for-pin substitution is supported without circuit redesign.

Q: What is the difference between tube and cut tape packaging?

A: Packaging format affects handling and automated assembly compatibility only. Tube packaging is suitable for manual assembly and lower-volume applications. Cut tape and Digi-Reel formats are optimized for automated pick-and-place assembly in high-volume production. Electrical performance is identical.

Q: Why do some substitutes have -55°C lower operating temperature limit?

A: The onsemi variants (MC74HC165ADR2G, MC74HC165ADG, NLV74HC165ADR2G) specify -55°C minimum operating temperature versus -40°C for Texas Instruments and Nexperia parts. This represents enhanced cold-temperature capability and does not affect substitutability for applications operating within the -40°C to 125°C range.

Q: Is the AEC-Q100 qualification on 74HC165D-Q100,118 required for my application?

A: AEC-Q100 qualification is required only for automotive applications subject to automotive industry standards. For general industrial and consumer applications, non-qualified variants are functionally equivalent and appropriate.

Q: Should I avoid the NLV74HC165ADR2G due to obsolete status?

A: The NLV74HC165ADR2G is functionally equivalent but carries obsolete product status, indicating discontinued manufacturing. Use this part only for legacy system maintenance where existing inventory is available. For new designs and ongoing production, select from active-status alternatives.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), matching the original SN74HC165D specifications.