SN74LVC14AQDREP Equivalent & Substitute Parts

Part Overview

The SN74LVC14AQDREP is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 14-SOIC surface mount packaging. This logic device is classified as Active product status and is widely used in digital signal conditioning and logic level conversion applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or specific application requirements such as automotive qualification.

Substiute Parts

SN74LVC14AQDREP

Texas InstrumentsIn Stock: 3419SN74LVC14AQDREP Datasheet

Current PartRFQ

SN74LVC14AQDRG4Q1

Texas InstrumentsIn Stock: 3523SN74LVC14AQDRG4Q1 Datasheet

Parametric EquivalentRFQ

SN74LVC14AQDRQ1

Texas InstrumentsIn Stock: 2475SN74LVC14AQDRQ1 Datasheet

Parametric EquivalentRFQ

74LVC14AD,118

Nexperia USA Inc.In Stock: 535474LVC14AD,118 Datasheet

MFR RecommendedRFQ

MC74LCX14DG

onsemiIn Stock: 2540MC74LCX14DG Datasheet

MFR RecommendedRFQ

MC74LCX14DR2G

onsemiIn Stock: 1489MC74LCX14DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC14AQDREP are classified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Logic Type: Inverter with 6 channels, 1 input per channel
• Schmitt Trigger feature presence
• Supply voltage range: 2V ~ 3.6V (minimum requirement)
• Output current capability: 24mA minimum for both high and low states
• Propagation delay: 6.4ns or better at 3.3V, 50pF load
• Package: 14-SOIC surface mount form factor
• Operating temperature range: -40°C ~ 125°C (minimum requirement)
• RoHS3 compliance and MSL 1 rating

Substitution Categories:

1. Parametric Equivalents (Texas Instruments 74LVC Series): Parts with identical electrical specifications and automotive-grade qualification
2. Manufacturer Recommended Equivalents (Cross-Manufacturer): Parts meeting all critical parameters from alternative manufacturers with equivalent or superior specifications
3. Functional Equivalents (Extended Operating Range): Parts with broader supply voltage or temperature ranges that encompass the original specification

Parameter Comparison

Engineering Selection Recommendations

SN74LVC14AQDRG4Q1 and SN74LVC14AQDRQ1 (Texas Instruments - Automotive Grade)

These parts are direct parametric equivalents to the SN74LVC14AQDREP with identical electrical specifications and operating temperature range. Both parts carry AEC-Q100 automotive qualification, making them suitable for applications requiring automotive-grade components. Selection between these two should be based on packaging availability (both supplied in Tape & Reel format) and inventory status.

74LVC14AD,118 (Nexperia USA Inc.)

This part meets all critical substitution parameters with an extended supply voltage range (1.2V ~ 3.6V) and broader input logic level thresholds. The quiescent current specification is higher at 40 µA compared to 10 µA for the original part. This part is suitable for applications where the extended voltage range provides design flexibility, provided power consumption constraints are not exceeded.

MC74LCX14DG and MC74LCX14DR2G (onsemi - 74LCX Series)

These onsemi parts are functionally equivalent with identical output current capability and propagation delay performance. The operating temperature range is limited to -40°C ~ 85°C, which is narrower than the original specification. Input logic level thresholds are tighter (0.4V ~ 0.6V for low, 1.7V ~ 2.2V for high). MC74LCX14DG is supplied in Tube packaging, while MC74LCX14DR2G is supplied in Tape & Reel format. Selection should account for the reduced upper operating temperature limit.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC14AQDRG4Q1 and SN74LVC14AQDRQ1 be used interchangeably with SN74LVC14AQDREP?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, operating temperature range, and package form factor. The primary difference is automotive-grade qualification (AEC-Q100), which adds design assurance for automotive applications. Mechanical and electrical compatibility is complete.

Q: What is the key difference between the 74LVC and 74LCX series?

A: Both series are 6-channel inverters with Schmitt trigger inputs and identical output current capability. The 74LCX series (MC74LCX14DG and MC74LCX14DR2G) has a narrower operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C) and tighter input logic level thresholds. Selection depends on whether the application requires the full -40°C ~ 125°C temperature range.

Q: Is the 74LVC14AD,118 from Nexperia a suitable substitute?

A: Yes, with design considerations. This part meets all critical electrical parameters and has an extended supply voltage range (1.2V ~ 3.6V). However, quiescent current is specified at 40 µA compared to 10 µA for the original part. Applications with strict power consumption budgets should evaluate this difference. Input logic level thresholds are also broader, which may affect signal integrity in marginal input conditions.

Q: Does packaging format affect substitution eligibility?

A: Packaging format (Tape & Reel versus Tube) does not affect electrical or mechanical compatibility. Selection should be based on assembly process requirements and inventory handling procedures. All listed substitutes use the same 14-SOIC surface mount package with identical pin configuration and PCB footprint.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance status.

Q: What should be considered when selecting between multiple substitute options?

A: Selection criteria should include: (1) operating temperature range requirements, (2) quiescent current budget, (3) input logic level threshold compatibility with signal sources, (4) automotive qualification requirements, and (5) packaging and supply chain availability. All listed parts are electrically and mechanically compatible; the choice depends on specific application constraints.