SN74HC175PW Equivalent & Substitute Parts

Part Overview

The SN74HC175PW is a D-type flip-flop logic integrated circuit manufactured by Texas Instruments, configured as a single element with 4-bit positive edge triggering in a 16-TSSOP surface mount package. This part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain electrical compatibility across supply voltage, propagation delay, output characteristics, and operating temperature ranges while preserving the 16-TSSOP package form factor.

Substiute Parts

SN74HC175PW

Texas InstrumentsIn Stock: 1241SN74HC175PW Datasheet

Current PartRFQ

SN74HC175PWR

Texas InstrumentsIn Stock: 5185SN74HC175PWR Datasheet

DirectRFQ

MM74HC175MTCX

Fairchild SemiconductorIn Stock: 2079MM74HC175MTCX Datasheet

DirectRFQ

74HC175PW,118

Nexperia USA Inc.In Stock: 403774HC175PW,118 Datasheet

MFR RecommendedRFQ

MC74HC175ADTR2G

onsemiIn Stock: 2435MC74HC175ADTR2G Datasheet

MFR RecommendedRFQ

NLV74HC175ADTR2G

onsemiIn Stock: 3613NLV74HC175ADTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC175PW is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Base product number: 74HC175
• Function: Master Reset
• Type: D-Type Flip-Flop
• Number of Elements: 1
• Number of Bits per Element: 4
• Output Type: Complementary
• Trigger Type: Positive Edge
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Voltage - Supply: 2V ~ 6V

Allowable Parameter Variations:

• Clock Frequency: 35 MHz to 89 MHz
• Max Propagation Delay @ 6V, 50pF: 22ns to 30ns
• Current - Output High, Low: 5.2mA (consistent across all parts)
• Current - Quiescent (Iq): 4 µA to 8 µA
• Input Capacitance: 3 pF to 10 pF
• Operating Temperature: -40°C to -55°C (minimum) and 85°C to 125°C (maximum)
• Packaging Format: Tube, Bulk, or Tape & Reel (TR)
• Product Status: Active or Discontinued

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Highest Compatibility): SN74HC175PWR from Texas Instruments is the direct functional equivalent with identical electrical specifications and the same manufacturer as the original part. This part is currently active and available in Tape & Reel packaging, providing the most seamless transition from the discontinued SN74HC175PW.

Secondary Substitutes (Active Status, Full Compatibility):

• 74HC175PW,118 (Nexperia USA Inc.): Offers extended operating temperature range (-40°C to 125°C) and higher clock frequency (89 MHz), suitable for applications requiring enhanced thermal performance.
• MM74HC175MTCX (Fairchild Semiconductor): Maintains identical propagation delay and quiescent current with marginally higher clock frequency (70 MHz), available in bulk packaging.

Alternative Substitute (Extended Temperature Range): MC74HC175ADTR2G (onsemi): Provides the widest operating temperature range (-55°C to 125°C) and lowest propagation delay (22ns), with reduced quiescent current (4 µA). This part is suitable for applications requiring enhanced thermal or power efficiency specifications.

Not Recommended: NLV74HC175ADTR2G (onsemi) carries obsolete product status and should not be selected for new designs despite electrical compatibility.

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 rating, and the required 16-TSSOP package form factor.

Frequently Asked Questions (FAQ)

Q: Can SN74HC175PWR directly replace SN74HC175PW? A: Yes. SN74HC175PWR is electrically and functionally identical to SN74HC175PW. The only difference is packaging format: SN74HC175PW is supplied in Tube, while SN74HC175PWR is supplied in Tape & Reel (TR). Both are manufactured by Texas Instruments and meet identical electrical specifications.

Q: What is the difference between the substitute parts in terms of performance? A: Clock frequency ranges from 35 MHz (MC74HC175ADTR2G, NLV74HC175ADTR2G) to 89 MHz (74HC175PW,118). Propagation delay varies from 22ns (onsemi parts) to 30ns (Nexperia part). Quiescent current ranges from 4 µA to 8 µA. All parts maintain the same supply voltage range (2V ~ 6V) and output characteristics. Selection depends on application timing and power consumption requirements.

Q: Are all substitute parts available in the same 16-TSSOP package? A: Yes. All listed substitute parts use the 16-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: What is the significance of operating temperature range differences? A: The original SN74HC175PW operates from -40°C to 85°C. Substitutes offer either the same range or extended ranges up to 125°C maximum. Extended temperature range parts (74HC175PW,118, MC74HC175ADTR2G, NLV74HC175ADTR2G) are suitable for industrial or automotive applications requiring wider thermal specifications. Standard range parts are adequate for commercial temperature environments.

Q: Why is NLV74HC175ADTR2G listed if it is obsolete? A: NLV74HC175ADTR2G is included for reference and historical compatibility documentation. It should not be selected for new designs. Active alternatives with equivalent or superior specifications are available.

Q: Do all substitute parts meet RoHS and REACH compliance? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, maintaining environmental and regulatory compliance equivalent to the original SN74HC175PW.

Q: What packaging formats are available for substitutes? A: Substitutes are available in three packaging formats: Tube (SN74HC175PW), Tape & Reel (SN74HC175PWR, 74HC175PW,118, MC74HC175ADTR2G, NLV74HC175ADTR2G), and Bulk (MM74HC175MTCX). Selection depends on procurement volume and assembly process requirements.