74LVC2G126DCURE4 Equivalent & Substitute Parts

Part Overview

The 74LVC2G126DCURE4 is a non-inverting buffer IC from Texas Instruments' 74LVC logic series, featuring 2 elements with 1 bit per element and 3-state output capability. Housed in an 8-VSSOP package, this component operates across a 1.65V to 5.5V supply voltage range with 32mA output current capability. The part is classified as obsolete, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for continued system integration.

Key Parameters

Parameter	Specification
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	8-VFSOP (0.091", 2.30mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74LVC2G126DCURE4 is determined by strict equivalence across the following critical parameters: logic type (non-inverting buffer), element count (2), bits per element (1), output configuration (3-state), output current specifications (32mA high and low), supply voltage range (1.65V ~ 5.5V), operating temperature range (-40°C ~ 125°C), package type (8-VFSOP), and surface mount configuration. All identified substitute parts maintain these specifications without deviation. Substitutes are grouped by base product number (74LVC2G125, 74LVC2G126, 74LVC2G241) and packaging format (Tape & Reel or Cut Tape & Digi-Reel®). Product status variations (Active vs. Discontinued at DiGi Electronics vs. Obsolete) do not affect electrical or mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Base Product	Logic Type	Elements	Output Type	Current (mA)	Supply Voltage	Temp Range	Package	Product Status	Inventory (Pcs)
74LVC2G126DCURE4	Texas Instruments	74LVC2G126	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Obsolete	666
74LVC2G125DCURG4	Texas Instruments	74LVC2G125	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Discontinued at DiGi Electronics	2647
74LVC2G125DCUTG4	Texas Instruments	74LVC2G125	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Discontinued at DiGi Electronics	1196
74LVC2G241DCUTG4	Texas Instruments	74LVC2G241	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Discontinued at DiGi Electronics	996
SN74LVC2G125DCU3	Texas Instruments	74LVC2G125	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	9789
SN74LVC2G125DCUR	Texas Instruments	74LVC2G125	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	3144
SN74LVC2G125DCUT	Texas Instruments	74LVC2G125	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	4283
SN74LVC2G126DCUR	Texas Instruments	74LVC2G126	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	2905
SN74LVC2G126DCUT	Texas Instruments	74LVC2G126	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	36348
SN74LVC2G241DCUR	Texas Instruments	74LVC2G241	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	1137
SN74LVC2G241DCUT	Texas Instruments	74LVC2G241	Buffer, Non-Inverting	2	3-State	32/32	1.65V ~ 5.5V	-40°C ~ 125°C	8-VFSOP	Active	1663

Engineering Selection Recommendations

For replacement of the obsolete 74LVC2G126DCURE4, prioritize parts with Active product status to ensure long-term availability and manufacturing support. The SN74LVC2G126DCUT variant offers the highest inventory level (36,348 pcs) within the same base product family and maintains identical electrical specifications. Alternative base product numbers (74LVC2G125 and 74LVC2G241) provide equivalent functional performance and are fully interchangeable at the electrical level.

All substitute candidates maintain ROHS3 compliance, MSL Level 1 rating, and identical package geometry (8-VFSOP). Packaging format selection (Tape & Reel vs. Cut Tape & Digi-Reel®) depends on procurement volume and assembly process requirements but does not affect component performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can 74LVC2G125 variants replace the 74LVC2G126DCURE4? A: Yes. Both base product families (74LVC2G125 and 74LVC2G126) share identical electrical specifications: 2-element non-inverting buffers with 3-state output, 32mA output current, 1.65V to 5.5V supply range, and -40°C to 125°C operating temperature. The 8-VFSOP package and surface mount configuration are identical.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging? A: Both packaging formats contain the same component in the same 8-VFSOP package. Tape & Reel (TR) is supplied on continuous tape for automated assembly lines. Cut Tape & Digi-Reel® (CT) is supplied in smaller quantities on cut tape segments. Component electrical and mechanical specifications are unchanged.

Q: Are Active status parts preferred over Discontinued or Obsolete parts? A: Active status parts offer assured long-term availability, ongoing manufacturing support, and consistent supply chain access. Discontinued or Obsolete parts may have limited remaining inventory and no guarantee of future availability.

Q: Do all substitute parts meet the same compliance standards? A: Yes. All listed substitutes maintain ROHS3 compliance, MSL Level 1 rating, REACH Unaffected status, and identical ECCN and HTSUS classifications as the original 74LVC2G126DCURE4.

Q: Can packaging format affect circuit board assembly? A: Packaging format affects procurement and handling procedures but not component performance. Tape & Reel format suits high-volume automated assembly. Cut Tape & Digi-Reel® format suits lower-volume or mixed-component assembly. Both formats deliver identical components in the same 8-VFSOP package.

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