SN74LVC126ADTG4 Equivalent & Substitute Parts

Part Overview

The SN74LVC126ADTG4 is a non-inverting buffer IC from Texas Instruments, part of the 74LVC logic family. This device features 4 elements with 1 bit per element, 3-state output capability, and operates across a supply voltage range of 1.65V to 3.6V. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SN74LVC126ADTG4
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution for the SN74LVC126ADTG4 is determined by strict equivalence across the following critical parameters:

Logic Type: Buffer, Non-Inverting
Number of Elements: 4
Number of Bits per Element: 1
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA
Voltage - Supply: 1.65V ~ 3.6V (minimum requirement)
Operating Temperature: -40°C ~ 125°C (TA)
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Texas Instruments SN74LVC125 and SN74LVC126 variants (with different packaging and qualification grades), and cross-manufacturer equivalents from Nexperia USA Inc. and Diodes Incorporated. All listed substitutes maintain identical electrical specifications and package footprints, ensuring direct replacement capability.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Output Type	Current (mA)	Voltage Supply	Temp Range	Package	Product Status	Inventory
SN74LVC126ADTG4	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Discontinued	1138 Pcs
SN74LVC125ADR	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	2600 Pcs
SN74LVC125ADRG3	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	3504 Pcs
SN74LVC125ADT	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	2309 Pcs
SN74LVC125AQDRQ1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	3113 Pcs
SN74LVC126ADR	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	1970 Pcs
SN74LVC126ADT	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	1882 Pcs
SN74LVC126AQDRG4Q1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	9583 Pcs
SN74LVC126AQDRQ1	Texas Instruments	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	2224 Pcs
74LVC126AD,118	Nexperia USA Inc.	Buffer, Non-Inverting	4	3-State	24/24	1.2V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	5426 Pcs
74LVC126AS14-13	Diodes Incorporated	Buffer, Non-Inverting	4	3-State	24/24	1.65V ~ 3.6V	-40°C ~ 125°C	14-SOIC	Active	5100 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the SN74LVC126ADTG4. Selection should be based on product availability and compliance requirements:

Texas Instruments SN74LVC125 Series: SN74LVC125ADR, SN74LVC125ADRG3, and SN74LVC125ADT are active, in-stock alternatives with identical electrical specifications. These parts differ only in packaging format (Cut Tape, Tape & Reel) and are suitable for standard industrial applications.

Texas Instruments SN74LVC125 Automotive Grade: SN74LVC125AQDRQ1 carries AEC-Q100 automotive qualification and is appropriate for automotive and high-reliability applications requiring formal qualification documentation.

Texas Instruments SN74LVC126 Series: SN74LVC126ADR and SN74LVC126ADT are active alternatives with identical specifications to the original part. SN74LVC126AQDRG4Q1 and SN74LVC126AQDRQ1 include AEC-Q100 automotive qualification for applications requiring automotive-grade components.

Cross-Manufacturer Equivalents: 74LVC126AD,118 (Nexperia USA Inc.) and 74LVC126AS14-13 (Diodes Incorporated) provide functionally equivalent alternatives from established logic IC manufacturers. The Nexperia part supports a lower minimum supply voltage (1.2V vs. 1.65V), offering extended operating range for low-voltage applications.

All substitute parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC125 variants be used as direct replacements for SN74LVC126ADTG4?

A: Yes. Both the SN74LVC125 and SN74LVC126 series share identical electrical specifications, pin configurations, and package footprints. The primary difference is the internal logic function designation, but both provide 4-element non-inverting buffers with 3-state outputs. Direct substitution is electrically valid.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are packaging and delivery formats only. Both contain the same die and electrical specifications. Cut Tape is supplied in smaller quantities on individual tape strips, while Tape & Reel is supplied in continuous reel format for high-volume automated assembly. The component itself is identical.

Q: Are automotive-grade variants (AEC-Q100) required for my application?

A: Automotive-grade qualification (AEC-Q100) is required only for applications subject to automotive industry standards or high-reliability requirements. Standard industrial applications can use non-qualified variants. Automotive-grade parts undergo additional qualification testing and documentation but maintain identical electrical performance.

Q: Can I use the Nexperia 74LVC126AD,118 in a 1.65V minimum supply voltage design?

A: The Nexperia part supports 1.2V minimum supply voltage, which is lower than the 1.65V minimum of the original part. This provides extended operating range and is fully compatible with designs requiring 1.65V operation. No design changes are necessary.

Q: What is the significance of the suffix codes (ADR, ADT, ADRG3, AQDRQ1)?

A: Suffix codes indicate packaging format, qualification grade, and manufacturing date code. ADR indicates Cut Tape packaging, ADT indicates Tape & Reel packaging, ADRG3 indicates Tape & Reel with specific date code, and AQDRQ1 indicates automotive-grade AEC-Q100 qualification. All variants maintain identical electrical specifications and are interchangeable at the circuit level.

Q: Is inventory availability a factor in substitution selection?

A: Inventory levels are provided for reference. All listed parts are currently in stock. Selection should prioritize active product status and compliance requirements over inventory quantity, as availability can change. Consult current supplier inventory for real-time availability confirmation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message