SN74HC14PW Equivalent & Substitute Parts

Part Overview

The SN74HC14PW is a 6-channel inverter IC with Schmitt trigger inputs in a 14-TSSOP surface mount package, manufactured by Texas Instruments. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74HC14 logic family provides CMOS inverter functionality with hysteresis characteristics suitable for signal conditioning and digital logic applications across industrial, consumer, and embedded systems.

Substiute Parts

SN74HC14PW

Texas InstrumentsIn Stock: 3348SN74HC14PW Datasheet

Current PartRFQ

SN74HC14PWR

Texas InstrumentsIn Stock: 2005493SN74HC14PWR Datasheet

DirectRFQ

MC74HC14ADTR2G

onsemiIn Stock: 7047MC74HC14ADTR2G Datasheet

DirectRFQ

74HC14PW,118

Nexperia USA Inc.In Stock: 100022174HC14PW,118 Datasheet

UpgradeRFQ

MM74HC14MTC

onsemiIn Stock: 2429MM74HC14MTC Datasheet

UpgradeRFQ

MM74HC14MTCX

onsemiIn Stock: 5409MM74HC14MTCX Datasheet

UpgradeRFQ

74HC14T14-13

Diodes IncorporatedIn Stock: 363774HC14T14-13 Datasheet

MFR RecommendedRFQ

M74HC14YTTR

STMicroelectronicsIn Stock: 1804M74HC14YTTR Datasheet

MFR RecommendedRFQ

MC74HC14ADTG

onsemiIn Stock: 3015MC74HC14ADTG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC14PW is determined by strict equivalence in the following parameters:

• Logic type (Inverter with 6 channels, 1 input per channel)
• Schmitt trigger functionality
• Supply voltage range (2V to 6V minimum)
• Package type (14-TSSOP surface mount)
• Input/output logic levels
• Output current capability (5.2mA high and low)
• RoHS3 compliance and MSL rating

Substitute parts are grouped into three categories based on product status and availability:

Direct Substitutes maintain identical electrical specifications and packaging, differing only in packaging format (Cut Tape/Digi-Reel vs. Tube).

Upgrade Substitutes offer enhanced performance characteristics such as extended temperature ranges (-55°C to 125°C) or improved propagation delay while maintaining full backward compatibility.

Manufacturer Recommended Substitutes are qualified alternatives from different manufacturers that meet or exceed the original specifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Highest Availability: SN74HC14PWR (Texas Instruments) is the primary direct substitute, offering identical electrical specifications to the SN74HC14PW with active product status and significantly higher inventory (2,005,400 units). The only difference is packaging format (Cut Tape & Digi-Reel vs. Tube), which does not affect electrical performance.

For Extended Temperature Range Applications: MC74HC14ADTR2G, MC74HC14ADTG, MM74HC14MTC, and MM74HC14MTCX all support -55°C to 125°C operating range, compared to the original -40°C to 85°C. These parts are suitable for automotive, industrial, and harsh environment applications. MC74HC14ADTR2G and MC74HC14ADTG additionally offer improved propagation delay (13ns vs. 21ns).

For Automotive Applications: M74HC14YTTR (STMicroelectronics) carries AEC-Q100 automotive qualification and is suitable for automotive-grade designs requiring certified components.

For Cost-Optimized Selection: 74HC14PW,118 (Nexperia USA Inc.) provides extended temperature range (-40°C to 125°C) with standard specifications and exceptional inventory availability (1,000,200 units).

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical package dimensions (14-TSSOP, 0.173" × 4.40mm), ensuring mechanical and thermal compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC14PWR as a direct replacement for SN74HC14PW? A: Yes. SN74HC14PWR is electrically identical to SN74HC14PW. The only difference is packaging format: SN74HC14PWR is supplied in Cut Tape & Digi-Reel format while SN74HC14PW is supplied in Tube format. Both are 14-TSSOP surface mount packages with identical pin configurations and electrical performance.

Q: What is the difference between the onsemi MC74HC14ADTR2G and MC74HC14ADTG? A: Both parts are electrically identical onsemi 74HC14 inverters with identical specifications. The difference is packaging: MC74HC14ADTR2G is supplied in Tape & Reel format, while MC74HC14ADTG is supplied in Tube format. Both support -55°C to 125°C operating range and feature 13ns propagation delay.

Q: Why does the Diodes Incorporated 74HC14T14-13 show 20 µA quiescent current instead of 2 µA? A: The 74HC14T14-13 maintains full functional and electrical compatibility with the SN74HC14PW. The higher quiescent current specification reflects Diodes Incorporated's device characterization and does not prevent substitution. All other parameters, including logic type, package, pin configuration, and output characteristics, remain equivalent.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original SN74HC14PW specifications.

Q: Can I use parts with extended temperature range (-55°C to 125°C) in applications rated for -40°C to 85°C? A: Yes. Extended temperature range parts are fully backward compatible. A part rated for -55°C to 125°C will function correctly in applications requiring only -40°C to 85°C operation. Extended range provides additional design margin and flexibility for future applications.

Q: What is the significance of propagation delay differences (13ns vs. 21ns)? A: Propagation delay determines the time required for an output to respond to an input change. Faster propagation delay (13ns) provides improved timing performance in high-speed applications. Parts with 21ns propagation delay are suitable for standard-speed logic applications. Both values are within the 74HC14 family specification and are interchangeable unless specific timing requirements mandate the faster variant.

Q: Are all substitute parts available in the same 14-TSSOP package? A: Yes. All substitute parts use the 14-TSSOP (0.173" × 4.40mm) surface mount package with identical pin assignments and mechanical dimensions, ensuring direct PCB compatibility without layout modifications.