74LVC3G17GD,125 Equivalent & Substitute Parts

Part Overview

The 74LVC3G17GD,125 is a non-inverting buffer IC from Nexperia USA Inc. in the 74LVC logic series. This device features 3 buffer elements with Schmitt trigger inputs and push-pull outputs, housed in an 8-XSON (2x3) surface mount package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC3G17GD,125
Manufacturer	Nexperia USA Inc.
Logic Type	Buffer, Non-Inverting
Number of Elements	3
Number of Bits per Element	1
Input Type	Schmitt Trigger
Output Type	Push-Pull
Current - Output High, Low	32mA, 32mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	8-XFDFN
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 74LVC3G17GD,125 is determined by the following critical parameters:

Logic Function: Non-inverting buffer with Schmitt trigger input and push-pull output
Number of Elements: 3 independent buffer elements
Electrical Characteristics: 32mA output current (high and low), 1.65V to 5.5V supply voltage range, -40°C to 125°C operating temperature
Input/Output Specifications: Schmitt trigger input, push-pull output configuration
Compliance: ROHS3 compliant, MSL 1 rating

Substitutes are grouped into two categories:

Direct Package Equivalent: 74LVC3G17DC,125 maintains identical electrical specifications and 3-element configuration but uses an 8-VSSOP package instead of 8-XSON.

Parametric Equivalents with Reduced Element Count: 74LVC1G17 and 74LVC2G17 series parts provide the same electrical characteristics and Schmitt trigger/push-pull configuration but with 1 or 2 buffer elements respectively. These require circuit redesign to accommodate the reduced element count.

Parameter Comparison

Part Number	Logic Type	Elements	Bits/Element	Input Type	Output Type	Output Current (mA)	Supply Voltage	Temp Range (°C)	Package	Product Status
74LVC3G17GD,125	Buffer, Non-Inverting	3	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	8-XFDFN	Obsolete
74LVC3G17DC,125	Buffer, Non-Inverting	3	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	8-VFSOP	Active
74LVC1G17GM,115	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC1G17GM,132	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC1G17GM-Q100X	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC1G17GN,132	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC1G17GS,132	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC1G17GX4Z	Buffer, Non-Inverting	1	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	4-XFDFN	Active
74LVC2G17GM,115	Buffer, Non-Inverting	2	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC2G17GM,132	Buffer, Non-Inverting	2	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active
74LVC2G17GN,132	Buffer, Non-Inverting	2	1	Schmitt Trigger	Push-Pull	32/32	1.65-5.5V	-40 to 125	6-XFDFN	Active

Engineering Selection Recommendations

Primary Substitute - Direct Replacement: 74LVC3G17DC,125 is the recommended substitute for the obsolete 74LVC3G17GD,125. This part maintains all electrical specifications, element count, and functional characteristics. The only difference is the package format (8-VSSOP versus 8-XSON), which requires PCB layout modification but no circuit redesign. This part is active and in production.

Alternative Substitutes - Reduced Element Count: The 74LVC1G17 and 74LVC2G17 series provide active, production-status alternatives with identical electrical performance and Schmitt trigger/push-pull configuration. However, these parts contain fewer buffer elements (1 or 2 versus 3), requiring circuit redesign to accommodate the reduced functionality. Selection among these depends on the specific application requirements for buffer element count.

Automotive Grade Option: The 74LVC1G17GM-Q100X is available for applications requiring AEC-Q100 automotive qualification, providing the same electrical specifications as other 74LVC1G17 variants with automotive-grade certification.

Compliance Status: All substitute parts maintain ROHS3 compliance and MSL 1 rating, consistent with the original part specifications.

Frequently Asked Questions (FAQ)

Q: Can 74LVC3G17DC,125 directly replace 74LVC3G17GD,125 on the PCB?

A: The electrical and functional specifications are identical. However, the package differs (8-VSSOP versus 8-XSON), requiring PCB footprint modification. No circuit redesign is necessary.

Q: What is the difference between 74LVC1G17 and 74LVC3G17 parts?

A: The primary difference is the number of buffer elements: 74LVC1G17 contains 1 element, while 74LVC3G17 contains 3 elements. All other electrical characteristics (Schmitt trigger input, push-pull output, 32mA current, 1.65-5.5V supply) are identical. Substitution requires circuit redesign to account for reduced element availability.

Q: Are there package size differences among the substitute parts?

A: Yes. The 74LVC3G17DC,125 uses 8-VSSOP packaging. The 74LVC1G17 series uses 6-XFDFN or 4-XFDFN packages depending on the specific part number. The 74LVC2G17 series uses 6-XFDFN packaging. Package selection affects PCB layout and board space requirements.

Q: What does the suffix designation (GM,115 versus GM,132) indicate?

A: These suffixes represent different manufacturing date codes or tape reel configurations from Nexperia. The electrical and functional specifications remain identical across these variants.

Q: Is the 74LVC1G17GM-Q100X suitable for automotive applications?

A: Yes. This part carries

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