SN74LVC14ADG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC14ADG4 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The device operates across a wide supply voltage range of 1.65V to 3.6V and is suitable for low-power logic applications requiring noise immunity through Schmitt trigger functionality.

Substiute Parts

SN74LVC14ADG4

Texas InstrumentsIn Stock: 861SN74LVC14ADG4 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 SN74LVC14ADG4 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 Drive Capability: Substitutes must provide 24mA output current (both high and low)
• 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 SN74LVC14ADG4. 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 @ 3.3V, 50pF). The SN74LVC14AD maintains active product status with higher inventory availability (2460 pcs) and is available in Tube packaging. This part is suitable for direct substitution in all applications where the original part was specified.

Secondary Substitute: 74LVC14AD,118 (Nexperia USA Inc.)

The 74LVC14AD,118 provides functional equivalence with extended lower supply voltage capability (1.2V ~ 3.6V) compared to the original specification. However, quiescent current is elevated at 40 µA maximum versus 1 µA for the original part, and propagation delay is slightly increased to 6.4ns. This part is suitable for applications where lower supply voltage operation is required and quiescent current is not a critical constraint. Available in Tape & Reel packaging with 5314 pcs inventory.

Tertiary Substitutes: MC74LCX14DG and MC74LCX14DR2G (onsemi)

Both onsemi parts (MC74LCX14DG in Tube and MC74LCX14DR2G in Tape & Reel packaging) operate within a narrower supply voltage range (2V ~ 3.6V) and have reduced maximum operating temperature (85°C versus 125°C). Quiescent current is 10 µA and propagation delay is 6.5ns. These parts are suitable for applications operating above 2V supply voltage and within the reduced temperature range. Selection between these two depends on packaging requirements for your manufacturing process.

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

Frequently Asked Questions (FAQ)

Q: Can I use the 74LVC14AD,118 in place of the SN74LVC14ADG4 in a 1.65V supply voltage application?

A: No. The 74LVC14AD,118 has a minimum supply voltage of 1.2V, but its input logic level thresholds are optimized for higher voltage operation. For applications requiring 1.65V supply voltage, use the SN74LVC14AD, which is specified for the full 1.65V ~ 3.6V range.

Q: What is the difference between MC74LCX14DG and MC74LCX14DR2G?

A: Both parts are electrically identical. The difference is packaging: MC74LCX14DG is supplied in Tube packaging, while MC74LCX14DR2G is supplied in Tape & Reel (TR) format. Select based on your manufacturing process requirements.

Q: Are the onsemi MC74LCX14 parts suitable for applications requiring -40°C to 125°C operation?

A: No. The onsemi parts are rated only to 85°C maximum operating temperature, compared to 125°C for the original SN74LVC14ADG4 and the SN74LVC14AD substitute. For full temperature range operation, use the SN74LVC14AD.

Q: Does the higher quiescent current of the 74LVC14AD,118 affect circuit performance?

A: The 40 µA quiescent current of the 74LVC14AD,118 versus 1 µA for the original part will increase standby power consumption. In battery-powered or low-power applications, this difference may be significant. Evaluate power budget requirements before selecting this substitute.

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 physical dimensions, allowing direct PCB layout compatibility.

Q: What compliance certifications do these parts maintain?

A: All parts listed maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating. All are REACH Unaffected and classified as EAR99 for export control purposes.