SN74HC165PW 8-Bit Shift Register Equivalent & Substitute Parts

Part Overview

The SN74HC165PW is an 8-bit parallel-in/serial-out shift register manufactured by Texas Instruments in a 16-TSSOP 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.

Substiute Parts

SN74HC165PW

Texas InstrumentsIn Stock: 2346SN74HC165PW Datasheet

Current PartRFQ

SN74HC165PWR

Texas InstrumentsIn Stock: 5244SN74HC165PWR Datasheet

DirectRFQ

MC74HC165ADTR2G

onsemiIn Stock: 2441MC74HC165ADTR2G Datasheet

DirectRFQ

74HC165PW,118

Nexperia USA Inc.In Stock: 1779474HC165PW,118 Datasheet

MFR RecommendedRFQ

74HC165PW-Q100,118

Nexperia USA Inc.In Stock: 904274HC165PW-Q100,118 Datasheet

MFR RecommendedRFQ

NLV74HC165ADTR2G

onsemiIn Stock: 2763NLV74HC165ADTR2G Datasheet

MFR RecommendedRFQ

74HC165PW,112

NXP SemiconductorsIn Stock: 304874HC165PW,112 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC165PW is determined by strict equivalence across the following parameters: logic type (shift register), bit configuration (8-bit), function (parallel or serial to serial), output type (complementary), supply voltage range (2V ~ 6V), package type (16-TSSOP), and mounting method (surface mount). All substitute parts maintain these core electrical and mechanical specifications. Differences in product status, manufacturer, packaging format (tube vs. cut tape vs. tape & reel), operating temperature range extensions, and automotive qualifications do not affect functional substitutability within standard industrial applications.

Parameter Comparison

Engineering Selection Recommendations

For standard industrial applications, SN74HC165PWR (Texas Instruments, active status) and 74HC165PW,118 (Nexperia USA Inc., active status) are primary substitutes with identical operating temperature specifications and full product support. Both maintain the original electrical performance envelope and are available in high quantities.

MC74HC165ADTR2G and 74HC165PW,112 provide extended lower operating temperature capability (-55°C vs. -40°C minimum), suitable for applications requiring enhanced cold-temperature performance while maintaining all other functional parameters.

For automotive applications requiring AEC-Q100 qualification, 74HC165PW-Q100,118 (Nexperia USA Inc., active status) is the specified selection. NLV74HC165ADTR2G (onsemi, obsolete status) also carries AEC-Q100 qualification but is no longer in active production.

Selection should prioritize active product status parts to ensure long-term supply chain continuity. Packaging format selection (cut tape, tape & reel, or tube) depends on assembly process requirements and order quantities.

Frequently Asked Questions (FAQ)

Q: Can SN74HC165PWR directly replace SN74HC165PW in existing designs? A: Yes. Both parts are functionally identical 8-bit shift registers in 16-TSSOP packages with identical electrical specifications (2V ~ 6V supply, -40°C ~ 125°C operating range, complementary output). The primary difference is packaging format: SN74HC165PWR is supplied in cut tape and digi-reel format, while SN74HC165PW was supplied in tube format.

Q: What is the difference between 74HC165PW,118 and 74HC165PW-Q100,118? A: Both are manufactured by Nexperia USA Inc. in 16-TSSOP packages with identical electrical specifications. The 74HC165PW-Q100,118 variant includes AEC-Q100 automotive qualification and is supplied in tape & reel format, making it suitable for automotive applications. The standard 74HC165PW,118 is supplied in cut tape & digi-reel format for general industrial use.

Q: Why do MC74HC165ADTR2G and NLV74HC165ADTR2G have -55°C minimum operating temperature? A: These onsemi variants extend the lower operating temperature specification to -55°C compared to the standard -40°C minimum. This provides enhanced performance in cold-temperature environments while maintaining all other functional parameters. Selection depends on application temperature requirements.

Q: Is the 16-TSSOP package identical across all substitute parts? A: Yes. All substitute parts use the 16-TSSOP package with 0.173" width and 4.40mm body width. Package dimensions and pinout are identical, ensuring direct PCB compatibility.

Q: What is the significance of RoHS3 compliance and MSL Level 1? A: All listed parts are RoHS3 compliant, meeting environmental and hazardous substance restrictions. MSL Level 1 (Unlimited) indicates unlimited shelf life without moisture sensitivity concerns, simplifying storage and handling requirements.