74HC173PW,112 Equivalent & Substitute Parts

Part Overview

The 74HC173PW,112 is a D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., designed for 4-bit parallel data storage with master reset functionality. This component features tri-state, non-inverted outputs and operates across a 2V to 6V supply voltage range. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

74HC173PW,112

Nexperia USA Inc.In Stock: 117074HC173PW,112 Datasheet

Current PartRFQ

CD74HC173PW

Texas InstrumentsIn Stock: 1693CD74HC173PW Datasheet

SimilarRFQ

CD74HC173PWR

Texas InstrumentsIn Stock: 3501CD74HC173PWR Datasheet

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CD74HC173PWT

Texas InstrumentsIn Stock: 1154CD74HC173PWT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC173PW,112 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Base product number: 74HC173
• Type: D-Type flip-flop
• Number of elements: 1
• Number of bits per element: 4
• Output type: Tri-State, Non-Inverted
• Function: Master Reset
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting type: Surface Mount
• Voltage supply range: 2V ~ 6V
• Trigger type: Positive Edge

All identified substitute parts maintain these core electrical and mechanical specifications, ensuring functional compatibility within the 74HC logic family. Variations in secondary parameters such as clock frequency, propagation delay, quiescent current, and input capacitance reflect manufacturing differences between suppliers but do not affect substitutability for standard applications.

Parameter Comparison

Engineering Selection Recommendations

CD74HC173PWR (Texas Instruments) - Primary Recommendation

The CD74HC173PWR is the preferred substitute for the 74HC173PW,112. This part maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. It is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The component carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. With 3460 pieces in current inventory, this part provides immediate procurement availability.

CD74HC173PW (Texas Instruments) - Secondary Option

The CD74HC173PW offers functional equivalence with the main part and is available in Tube packaging. Although listed as discontinued at DiGi Electronics, it maintains ROHS3 compliance and regulatory alignment. This option is suitable for applications where tube packaging is acceptable and inventory availability is confirmed.

CD74HC173PWT (Texas Instruments) - Alternative Option

The CD74HC173PWT provides functional equivalence and is available with 1122 pieces in stock. This part is discontinued at DiGi Electronics but remains ROHS3 compliant and regulatory compliant. Selection of this part should be based on specific packaging requirements and inventory availability at the time of procurement.

All substitute parts operate within the same electrical parameters for core functionality, with minor variations in secondary characteristics that do not affect circuit-level compatibility in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC173PWR directly replace the 74HC173PW,112 in existing designs?

A: Yes. Both parts share identical functional specifications as D-Type flip-flops with 4-bit storage, tri-state non-inverted outputs, and master reset functionality. The 16-TSSOP package dimensions and surface mount configuration are identical. Electrical parameters including supply voltage range (2V ~ 6V), output current (7.8mA), and trigger type (positive edge) are equivalent.

Q: What are the differences between the substitute parts?

A: The primary differences are product status and packaging format. CD74HC173PWR is active and supplied in Tape & Reel format, suitable for high-volume automated assembly. CD74HC173PW and CD74HC173PWT are discontinued at DiGi Electronics but available in Tube and unspecified packaging respectively. All three maintain identical electrical functionality and 16-TSSOP package specifications.

Q: Are there performance differences between the Nexperia and Texas Instruments versions?

A: Minor variations exist in secondary parameters. The Nexperia 74HC173PW,112 specifies 95 MHz clock frequency and 30ns propagation delay, while Texas Instruments versions specify 60 MHz and 34ns respectively. The Nexperia part also specifies lower quiescent current (4 µA vs. 8 µA) and lower input capacitance (4.6 pF vs. 10 pF). These differences do not affect functional substitutability for standard logic applications.

Q: What is the operating temperature range for substitute parts?

A: The Texas Instruments substitute parts (CD74HC173PW, CD74HC173PWR, CD74HC173PWT) operate across -55°C to 125°C, providing a wider low-temperature range compared to the original Nexperia part (-40°C to 125°C). This extended range offers additional design margin for applications requiring operation at lower temperatures.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component procurement and assembly.

Q: Which packaging format should I select?

A: CD74HC173PWR in Tape & Reel (TR) format is recommended for automated surface mount assembly processes. CD74HC173PW in Tube packaging is suitable for manual assembly or lower-volume applications. CD74HC173PWT packaging format is unspecified; confirm packaging details with the supplier before procurement.