SN74LVC14ADE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC14ADE4 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The device operates across a 1.65V to 3.6V supply voltage range and is suitable for logic signal inversion with hysteresis characteristics.

Substiute Parts

SN74LVC14ADE4

Texas InstrumentsIn Stock: 768SN74LVC14ADE4 Datasheet

Current PartRFQ

SN74LVC14AD

Texas InstrumentsIn Stock: 2528SN74LVC14AD Datasheet

MFR RecommendedRFQ

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

Substitution for the SN74LVC14ADE4 is determined by the following critical parameters:

• Logic Function: All substitutes must provide 6-channel inverter functionality with Schmitt trigger inputs
• Package Type: All substitutes must use 14-SOIC surface mount packaging with identical physical dimensions
• Supply Voltage Range: Substitutes must operate within or encompass the 1.65V ~ 3.6V range
• Output Current: Substitutes must provide minimum 24mA output drive capability
• Propagation Delay: Substitutes must meet or exceed 6.2ns maximum propagation delay at 3.3V with 50pF load
• Operating Temperature: Substitutes must support the -40°C ~ 125°C range
• Compliance: All substitutes must maintain ROHS3 compliance and MSL 1 rating

The substitute parts are grouped into two categories based on voltage supply specifications and quiescent current characteristics, while maintaining functional and package equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SN74LVC14AD (Texas Instruments)

The SN74LVC14AD is the manufacturer-recommended direct replacement for the discontinued SN74LVC14ADE4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, including supply voltage range (1.65V ~ 3.6V), quiescent current (1 µA maximum), and propagation delay (6.2ns). The SN74LVC14AD maintains active product status with higher inventory availability. Packaging differs only in delivery format (Tube vs. standard), with no impact on component functionality or PCB integration.

Secondary Substitutes: 74LVC14AD,118 (Nexperia) and MC74LCX14DG/MC74LCX14DR2G (onsemi)

The Nexperia 74LVC14AD,118 provides functional equivalence with extended lower supply voltage capability (1.2V minimum). Quiescent current is higher at 40 µA maximum, and propagation delay increases to 6.4ns. This part is suitable for applications where the lower quiescent current of the primary substitute is not critical.

The onsemi MC74LCX14DG and MC74LCX14DR2G (identical electrical specifications, different packaging) operate with a minimum supply voltage of 2V, restricting use in applications below this threshold. Quiescent current is 10 µA and propagation delay is 6.5ns. Operating temperature range is limited to -40°C ~ 85°C, which excludes high-temperature applications requiring 125°C operation. These parts are suitable only for applications within the 2V ~ 3.6V supply range and -40°C ~ 85°C temperature envelope.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC14AD directly replace the discontinued SN74LVC14ADE4?

A: Yes. The SN74LVC14AD is the manufacturer-recommended substitute with identical electrical specifications and 14-SOIC packaging. The only difference is packaging format (Tube delivery). No circuit modifications are required.

Q: What are the key differences between the Texas Instruments and Nexperia substitutes?

A: The Nexperia 74LVC14AD,118 extends the minimum supply voltage to 1.2V (versus 1.65V for TI parts) but has higher quiescent current (40 µA vs. 1 µA) and slightly longer propagation delay (6.4ns vs. 6.2ns). Select the Nexperia part only if lower supply voltage operation is required and quiescent current is not a design constraint.

Q: Why do the onsemi parts have a lower maximum operating temperature?

A: The MC74LCX14DG and MC74LCX14DR2G are specified for -40°C ~ 85°C operation, compared to -40°C ~ 125°C for the TI and Nexperia parts. Applications requiring operation above 85°C must use the TI SN74LVC14AD or Nexperia 74LVC14AD,118.

Q: Are all substitute parts available in the same 14-SOIC package?

A: Yes. All substitute parts use the 14-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and physical dimensions. PCB layout modifications are not required.

Q: Do all substitutes meet the same compliance requirements?

A: Yes. All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SN74LVC14ADE4 specifications.

Q: What is the minimum supply voltage for each substitute?

A: SN74LVC14AD (TI): 1.65V minimum; 74LVC14AD,118 (Nexperia): 1.2V minimum; MC74LCX14DG and MC74LCX14DR2G (onsemi): 2V minimum. Select based on your application's minimum supply voltage requirement.