CD74HCT14PW Equivalent & Substitute Parts

Part Overview

The CD74HCT14PW is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in a 14-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74HCT14 logic family provides standard inverter functionality with hysteresis characteristics suitable for signal conditioning and digital logic applications operating at 4.5V to 5.5V supply voltage.

Substiute Parts

CD74HCT14PW

Texas InstrumentsIn Stock: 656CD74HCT14PW Datasheet

Current PartRFQ

CD74HCT14PWR

Texas InstrumentsIn Stock: 7080CD74HCT14PWR Datasheet

DirectRFQ

MC74HCT14ADTR2G

onsemiIn Stock: 5051MC74HCT14ADTR2G Datasheet

DirectRFQ

74HCT14DB,112

NXP SemiconductorsIn Stock: 1506974HCT14DB,112 Datasheet

MFR RecommendedRFQ

74HCT14PW,118

Nexperia USA Inc.In Stock: 867274HCT14PW,118 Datasheet

MFR RecommendedRFQ

74HCT14PW-Q100,118

Nexperia USA Inc.In Stock: 115974HCT14PW-Q100,118 Datasheet

MFR RecommendedRFQ

74HCT14T14-13

Diodes IncorporatedIn Stock: 357574HCT14T14-13 Datasheet

MFR RecommendedRFQ

MM74HCT14MTCX

onsemiIn Stock: 2734MM74HCT14MTCX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD74HCT14PW is determined by strict equivalence across the following criteria:

Core Functional Parameters:

• Logic type: Inverter with 6 channels, 1 input per channel
• Schmitt trigger feature presence
• Supply voltage range: 4.5V ~ 5.5V
• Input and output logic levels within specified ranges
• Output current capability: 4mA minimum for both high and low states

Physical & Environmental Parameters:

• Package type: 14-TSSOP surface mount only
• Operating temperature range compatibility
• Moisture sensitivity level: MSL 1 (Unlimited)
• RoHS3 compliance

Acceptable Variations:

• Quiescent current up to 20 µA (main part: 2 µA; substitutes range 1–20 µA)
• Propagation delay up to 38ns at specified conditions
• Operating temperature lower limit may extend to -40°C (more restrictive than original -55°C)
• Output current up to 4.8mA (exceeds minimum requirement)
• Packaging format: Tube, Tape & Reel (TR), or Cut Tape (CT) & Digi-Reel®

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): CD74HCT14PWR from Texas Instruments is the direct equivalent with identical electrical specifications and active product status. This part maintains the original -55°C to 125°C operating temperature range and is available in Tape & Reel packaging.

Secondary Substitutes (Functionally Equivalent):

• 74HCT14PW,118 and 74HCT14PW-Q100,118 from Nexperia USA Inc. provide full functional equivalence with slightly faster propagation delay (34ns vs. 38ns). Operating temperature minimum is -40°C, which is acceptable for most industrial applications. The Q100 variant includes AEC-Q100 automotive qualification.
• MC74HCT14ADTR2G from onsemi offers superior performance with lower quiescent current (1 µA) and faster propagation delay (32ns). Operating temperature range is -55°C to 125°C, matching the original specification.
• MM74HCT14MTCX from onsemi provides the fastest propagation delay (20ns) and lowest quiescent current (1 µA) but operates only to 85°C maximum, limiting use in extended temperature applications.

Conditional Substitute:

• 74HCT14T14-13 from Diodes Incorporated is functionally compatible but exhibits higher quiescent current (20 µA maximum), which may impact power consumption in battery-powered or low-power applications.

Not Recommended:

• 74HCT14DB,112 from NXP Semiconductors lacks sufficient parameter specification data for reliable substitution determination.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and 14-TSSOP package compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use CD74HCT14PWR as a direct replacement for CD74HCT14PW? A: Yes. CD74HCT14PWR is the active production equivalent with identical electrical specifications. The only difference is packaging format: PWR uses Tape & Reel instead of Tube. Both are 14-TSSOP surface mount packages with identical pinout and performance.

Q: What is the difference between the Nexperia 74HCT14PW,118 and 74HCT14PW-Q100,118 variants? A: Both parts are electrically identical with 4.5V–5.5V supply voltage and 34ns propagation delay. The Q100 variant includes AEC-Q100 automotive qualification, making it suitable for automotive applications. Standard 74HCT14PW,118 is suitable for industrial and commercial applications.

Q: Why do some substitutes have different operating temperature ranges? A: Operating temperature range is a manufacturing specification that reflects the tested and qualified limits for each manufacturer. Parts with -40°C to 125°C range are acceptable for most applications but may not be suitable for extreme cold environments requiring -55°C operation. Verify your application requirements before selecting a substitute with a narrower temperature range.

Q: Can I substitute MM74HCT14MTCX if my application operates only to 85°C? A: Yes, if your maximum operating temperature does not exceed 85°C. MM74HCT14MTCX offers superior performance with 20ns propagation delay and 1 µA quiescent current. However, if your application may encounter temperatures above 85°C, select an alternative with a higher temperature rating.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the lowest moisture sensitivity level. These parts have unlimited shelf life and do not require special moisture-controlled storage or baking procedures before soldering. All listed substitutes carry MSL 1 rating.

Q: Are all substitutes available in 14-TSSOP package? A: Yes. All recommended substitutes use the 14-TSSOP (0.173", 4.40mm Width) surface mount package with identical pinout and footprint compatibility.

Q: Which substitute offers the best performance? A: MC74HCT14ADTR2G from onsemi provides the best balance of performance and temperature range, with 32ns propagation delay, 1 µA quiescent current, and -55°C to 125°C operating range. MM74HCT14MTCX offers the fastest propagation delay (20ns) but is limited to -40°C to 85°C operation.

Q: Do all substitutes meet RoHS3 compliance? A: Yes. All recommended substitutes are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.