SN74AHCT14MPWREP Equivalent & Substitute Parts

Part Overview

The SN74AHCT14MPWREP is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 14-TSSOP surface mount packaging. This logic component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility across qualified manufacturers.

Substiute Parts

SN74AHCT14MPWREP

Texas InstrumentsIn Stock: 1136SN74AHCT14MPWREP Datasheet

Current PartRFQ

74AHCT14PW,118

Nexperia USA Inc.In Stock: 696274AHCT14PW,118 Datasheet

MFR RecommendedRFQ

74AHCT14T14-13

Diodes IncorporatedIn Stock: 94874AHCT14T14-13 Datasheet

MFR RecommendedRFQ

74VHCT14AMTCX

onsemiIn Stock: 430774VHCT14AMTCX Datasheet

MFR RecommendedRFQ

74VHCT14PW,118

NXP USA Inc.In Stock: 2847474VHCT14PW,118 Datasheet

MFR RecommendedRFQ

MC74VHCT14ADTR2G

onsemiIn Stock: 2658MC74VHCT14ADTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74AHCT14MPWREP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Logic Type: Inverter
• Number of Circuits: 6
• Number of Inputs: 1
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: 8mA, 8mA
• Input Logic Level - Low: 0.5V ~ 0.6V
• Input Logic Level - High: 1.9V ~ 2.1V
• Package / Case: 14-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount

Allowable Variation Parameters:

• Current - Quiescent (Max): Up to 20 µA (main part: 2 µA)
• Max Propagation Delay @ V, Max CL: Up to 10ns @ 5V, 50pF (main part: 8ns)
• Operating Temperature: Minimum -40°C acceptable (main part: -55°C)
• Features: Schmitt Trigger feature may be absent in some substitutes
• Series: 74AHCT or 74VHCT acceptable

All identified substitute parts meet these criteria and maintain functional and mechanical compatibility with the SN74AHCT14MPWREP.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Highest Compatibility): The 74AHCT14PW,118 from Nexperia USA Inc. provides direct functional equivalence with identical electrical specifications and Schmitt trigger feature. Operating temperature range begins at -40°C versus the main part's -55°C, which is acceptable for most industrial and commercial applications. This part carries Active product status and ROHS3 compliance.

Secondary Substitutes (Acceptable with Parameter Variance): The 74VHCT14PW,118 from NXP USA Inc. maintains identical propagation delay and quiescent current specifications with extended inventory availability (28,368 pcs). Operating temperature range is -40°C to 125°C. The 74VHCT series operates within the same supply voltage range and output current specifications.

The MC74VHCT14ADTR2G from onsemi extends the operating temperature range to -55°C ~ 125°C, matching the main part's lower temperature limit. Propagation delay is 9.6ns, within acceptable variance.

Tertiary Substitute (Relaxed Parameters): The 74AHCT14T14-13 from Diodes Incorporated exhibits higher quiescent current (20 µA versus 2 µA) and slightly increased propagation delay (10ns versus 8ns). These parameters remain within functional tolerance for non-critical timing applications. Operating temperature range is -40°C ~ 125°C.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and identical 14-TSSOP packaging.

Frequently Asked Questions (FAQ)

Q: Can 74VHCT14 series parts substitute for 74AHCT14 series? A: Yes. Both series share identical logic type, circuit count, input configuration, supply voltage range, output current ratings, and input logic levels. The 14-TSSOP package is identical. Operating temperature ranges may differ; verify application requirements.

Q: What is the significance of the Schmitt Trigger feature? A: Schmitt Trigger input configuration provides hysteresis, improving noise immunity. Parts without this feature listed (such as 74AHCT14T14-13) still function as inverters but lack this enhanced input characteristic. Verify application sensitivity to input noise before substitution.

Q: Are there packaging differences between substitute parts? A: All listed substitutes use 14-TSSOP surface mount packaging with identical dimensions (0.173", 4.40mm Width). Tape & Reel and Cut Tape packaging formats are both suitable for automated assembly processes.

Q: What is the impact of quiescent current variation? A: The main part specifies 2 µA maximum quiescent current. The 74AHCT14T14-13 specifies 20 µA. In battery-powered or ultra-low-power applications, this 10x difference may be significant. For standard industrial applications, both values are negligible.

Q: How do propagation delay differences affect circuit performance? A: The main part specifies 8ns maximum propagation delay. Substitutes range from 8ns to 10ns. In timing-critical applications operating near maximum frequency limits, verify that the substitute's propagation delay does not violate setup/hold time requirements. For general logic applications, this 2ns variance is typically inconsequential.

Q: What operating temperature range should I select? A: The main part operates -55°C to 125°C. Substitutes range from -40°C to 125°C (most common) or -55°C to 125°C (MC74VHCT14ADTR2G). Select based on your application's minimum operating temperature requirement. Industrial applications typically require -40°C minimum; extended temperature applications require -55°C.

Q: Are all substitutes RoHS3 compliant? A: All listed substitutes carry RoHS3 compliance certification. Moisture Sensitivity Level is MSL 1 (Unlimited) for all parts, indicating no special moisture handling requirements.