SN74LVC14ADRG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC14ADRG4 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 14-SOIC surface mount 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 with low quiescent current and Schmitt trigger input hysteresis for noise immunity in logic applications.

Key Parameters

Parameter	Value
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

Substitute Part Grouping Explanation

Substitution for the SN74LVC14ADRG4 is determined by the following critical parameters: logic type (inverter), circuit count (6 channels), Schmitt trigger feature, supply voltage range compatibility, output current capability (24mA minimum), propagation delay performance, and 14-SOIC package footprint. Parts are grouped into two categories based on parametric equivalence and manufacturer recommendation status.

Parametric Equivalents (Texas Instruments 74LVC Series): Parts SN74LVC14ADR, SN74LVC14ADRG3, and SN74LVC14ADT maintain identical electrical specifications to the main part, differing only in packaging format (Cut Tape vs. Tape & Reel). These are direct functional replacements with no performance variation.

Manufacturer Recommended Substitutes: Parts 74LVC14AD,118 (Nexperia) and MC74LCX14DG / MC74LCX14DR2G (onsemi) provide functional equivalence with minor parameter variations within acceptable operating ranges. These alternatives maintain the 6-channel inverter configuration, Schmitt trigger input, 14-SOIC package, and core electrical performance while operating under different supply voltage and quiescent current specifications.

Parameter Comparison

Parameter	SN74LVC14ADRG4	SN74LVC14ADR	SN74LVC14ADRG3	SN74LVC14ADT	74LVC14AD,118	MC74LCX14DG	MC74LCX14DR2G
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Nexperia USA Inc.	onsemi	onsemi
Logic Type	Inverter	Inverter	Inverter	Inverter	Inverter	Inverter	Inverter
Number of Circuits	6	6	6	6	6	6	6
Schmitt Trigger	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.2V ~ 3.6V	2V ~ 3.6V	2V ~ 3.6V
Current - Quiescent (Max)	1 µA	1 µA	1 µA	1 µA	40 µA	10 µA	10 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Max Propagation Delay @ 3.3V, 50pF	6.2ns	6.2ns	6.2ns	6.2ns	6.4ns	6.5ns	6.5ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Texas Instruments 74LVC Series): SN74LVC14ADR, SN74LVC14ADRG3, and SN74LVC14ADT are direct parametric equivalents with active product status. Selection between these three depends on packaging requirements: SN74LVC14ADR for Cut Tape applications, SN74LVC14ADRG3 and SN74LVC14ADT for Tape & Reel formats. All three maintain identical electrical performance and full temperature range operation (-40°C to 125°C).

Secondary Substitutes (Alternative Manufacturers): The 74LVC14AD,118 (Nexperia) and MC74LCX14DG / MC74LCX14DR2G (onsemi) are functionally equivalent alternatives with active status and ROHS3 compliance. The Nexperia part extends supply voltage range to 1.2V minimum and maintains identical output current and propagation delay. The onsemi parts (74LCX series) operate within 2V to 3.6V supply range with slightly elevated quiescent current (10 µA) and reduced maximum operating temperature (85°C). These alternatives are suitable for applications not requiring the full -40°C to 125°C temperature range or the 1.65V minimum supply voltage of the original part.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC14ADR be used as a direct replacement for SN74LVC14ADRG4?

A: Yes. SN74LVC14ADR is a parametric equivalent with identical electrical specifications, supply voltage range, quiescent current, output current, propagation delay, and operating temperature range. The difference is packaging format: SN74LVC14ADRG4 is supplied in Cut Tape & Digi-Reel format, while SN74LVC14ADR is Cut Tape only. Both use 14-SOIC surface mount package.

Q: What is the difference between SN74LVC14ADRG3 and SN74LVC14ADT?

A: Both are parametric equivalents of the main part with identical electrical performance. The difference is packaging: SN74LVC14ADRG3 is supplied in Tape & Reel format with a specific reel designation (G3), while SN74LVC14ADT is also Tape & Reel format. Selection depends on your procurement and assembly equipment compatibility.

Q: Can MC74LCX14DG replace SN74LVC14ADRG4 in all applications?

A: MC74LCX14DG is functionally equivalent for most applications but has two limitations: minimum supply voltage is 2V (versus 1.65V for the original), and maximum operating temperature is 85°C (versus 125°C). Use this substitute only if your application operates within 2V to 3.6V supply range and does not require operation above 85°C.

Q: Why does 74LVC14AD,118 have higher quiescent current (40 µA vs. 1 µA)?

A: The Nexperia 74LVC14AD,118 maintains functional equivalence with identical output current, propagation delay, and package footprint. The higher quiescent current is a characteristic difference between manufacturers' implementations. This part is suitable for applications where standby power consumption is not critical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SN74LVC14ADR, SN74LVC14ADRG3, SN74LVC14ADT, 74LVC14AD,118, MC74LCX14DG, and MC74LCX14DR2G) are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level).

Q: What is the footprint compatibility between these parts?

A: All substitute parts use 14-SOIC surface mount package with 0.154" width and 3.90mm body width. Footprint is identical across all listed alternatives, allowing direct PCB layout compatibility.

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