SN74LVC14ADRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC14ADRE4 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 14-SOIC packaging. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates across a 1.65V to 3.6V supply voltage range and is suitable for low-voltage logic applications requiring noise immunity through Schmitt trigger functionality.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	SN74LVC14ADRE4
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Schmitt Trigger
Voltage - Supply	1.65V ~ 3.6V
Current - Quiescent (Max)	1 µA
Current - Output High, Low	24mA, 24mA
Max Propagation Delay @ 3.3V, 50pF	6.2ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SN74LVC14ADRE4 are grouped based on the following critical parameters that determine functional and mechanical compatibility:

Primary Substitution Criteria:

Logic Type: Inverter with 6 channels and 1 input per channel
Features: Schmitt Trigger functionality
Package: 14-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Output Current: 24mA minimum for both high and low states
Propagation Delay: Maximum 6.5ns @ 3.3V, 50pF

Grouping Categories:

Group 1 - Texas Instruments Parametric Equivalents (SN74LVC Series): Parts SN74LVC14ADR, SN74LVC14ADRG3, SN74LVC14ADRG4, and SN74LVC14ADT maintain identical electrical specifications to the main part, differing only in packaging format (Cut Tape, Tape & Reel, or Digi-Reel). These are direct functional replacements with no performance trade-offs.

Group 2 - Nexperia Manufacturer Recommended (74LVC14AD,118): The Nexperia part operates within a slightly wider supply voltage range (1.2V ~ 3.6V) and exhibits marginally higher quiescent current (40 µA vs. 1 µA). Propagation delay is 6.4ns, within acceptable tolerance. This part is functionally compatible for most applications.

Group 3 - onsemi Manufacturer Recommended (74LCX Series): The MC74LCX14DG and MC74LCX14DR2G parts operate at a narrower supply voltage range (2V ~ 3.6V) and feature different input logic levels. Operating temperature is limited to -40°C ~ 85°C. These parts are compatible for applications not requiring the full -40°C ~ 125°C temperature range and operating above 2V supply.

Parameter Comparison

Part Number	Manufacturer	Voltage - Supply	Current - Quiescent (Max)	Current - Output High, Low	Max Propagation Delay @ 3.3V, 50pF	Operating Temperature	Product Status	Packaging
SN74LVC14ADRE4	Texas Instruments	1.65V ~ 3.6V	1 µA	24mA, 24mA	6.2ns	-40°C ~ 125°C	Discontinued at DiGi Electronics	14-SOIC
SN74LVC14ADR	Texas Instruments	1.65V ~ 3.6V	1 µA	24mA, 24mA	6.2ns	-40°C ~ 125°C	Active	14-SOIC (Cut Tape)
SN74LVC14ADRG3	Texas Instruments	1.65V ~ 3.6V	1 µA	24mA, 24mA	6.2ns	-40°C ~ 125°C	Active	14-SOIC (Tape & Reel)
SN74LVC14ADRG4	Texas Instruments	1.65V ~ 3.6V	1 µA	24mA, 24mA	6.2ns	-40°C ~ 125°C	Discontinued at DiGi Electronics	14-SOIC (Cut Tape)
SN74LVC14ADT	Texas Instruments	1.65V ~ 3.6V	1 µA	24mA, 24mA	6.2ns	-40°C ~ 125°C	Active	14-SOIC (Tape & Reel)
74LVC14AD,118	Nexperia USA Inc.	1.2V ~ 3.6V	40 µA	24mA, 24mA	6.4ns	-40°C ~ 125°C	Active	14-SOIC (Tape & Reel)
MC74LCX14DG	onsemi	2V ~ 3.6V	10 µA	24mA, 24mA	6.5ns	-40°C ~ 85°C	Active	14-SOIC (Tube)
MC74LCX14DR2G	onsemi	2V ~ 3.6V	10 µA	24mA, 24mA	6.5ns	-40°C ~ 85°C	Active	14-SOIC (Tape & Reel)

Engineering Selection Recommendations

Recommended Primary Substitutes (Group 1 - Texas Instruments SN74LVC14 Series):

For direct replacement with no performance compromise, select from active Texas Instruments parts: SN74LVC14ADR, SN74LVC14ADRG3, or SN74LVC14ADT. These maintain identical electrical specifications and full temperature range operation (-40°C ~ 125°C). Selection between these three depends on packaging requirements: Cut Tape (ADR), Tape & Reel (ADRG3 or ADT). All are ROHS3 compliant with MSL 1 rating.

Secondary Substitute (Group 2 - Nexperia 74LVC14AD,118):

The Nexperia part is suitable for applications where quiescent current elevation to 40 µA is acceptable and supply voltage does not drop below 1.2V. This part maintains the full -40°C ~ 125°C operating temperature range and is ROHS3 compliant. Propagation delay of 6.4ns remains within acceptable tolerance for most timing-critical applications.

Tertiary Substitutes (Group 3 - onsemi 74LCX Series):

The MC74LCX14DG and MC74LCX14DR2G parts are suitable only for applications meeting all of the following conditions: minimum supply voltage of 2V, maximum operating temperature of 85°C, and acceptance of 10 µA quiescent current. These parts are ROHS3 compliant but operate at a narrower voltage and temperature range than the original part.

Compliance Status:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC14ADR as a direct replacement for SN74LVC14ADRE4?

A: Yes. SN74LVC14ADR is a parametric equivalent with identical electrical specifications, operating voltage range (1.65V ~ 3.6V), quiescent current (1 µA), output current (24mA), propagation delay (6.2ns), and temperature range (-40°C ~ 125°C). The only difference is packaging format (Cut Tape vs. the original's format). Both are 14-SOIC form factor and surface mount.

Q: What is the difference between SN74LVC14ADRG3 and SN74LVC14ADT?

A: Both are Texas Instruments parametric equivalents with identical electrical specifications. The difference is packaging: SN74LVC14ADRG3 is supplied in Tape & Reel format with 4260 pcs in stock, while SN74LVC14ADT is also Tape & Reel with 1900 pcs in stock. Electrically, they are interchangeable.

Q: Why should I avoid the onsemi MC74LCX14 parts?

A: The onsemi parts operate at a narrower supply voltage range (2V ~ 3.6V minimum vs. 1.65V for the original) and have a reduced operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C). Use these only if your application does not require operation below 2V supply or above 85°C.

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

A: The Nexperia part is functionally compatible for most applications. It maintains the full -40°C ~ 125°C temperature range and operates at 1.2V minimum (lower than the original's 1.65V). However, quiescent current is 40 µA compared to 1 µA for the original. If low power consumption is critical, use Texas Instruments parts instead.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's regulatory status.

Q: What packaging options are available for active substitutes?

A: Texas Instruments offers three active options: SN74LVC14ADR (Cut Tape), SN74LVC14ADRG3 (Tape & Reel), and SN74LVC14ADT (Tape & Reel). Nexperia supplies 74LVC14AD,118 in Tape & Reel. onsemi provides MC74LCX14DG (Tube) and MC74LCX14DR2G (Tape & Reel). Select based on your procurement and assembly requirements.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided all parts meet your application's voltage, temperature, and current requirements. However, for consistency and supply chain simplicity, using a single part number across a design is recommended.

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