74ALVC125D,112 Equivalent & Substitute Parts

Part Overview

The 74ALVC125D,112 is a non-inverting buffer logic IC manufactured by Nexperia USA Inc., designed for 3.6V operation with 4 elements and 3-state output capability. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The 74ALVC series provides low-voltage logic buffering suitable for applications requiring signal conditioning and output control in mixed-signal environments.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ALVC125D,112
Manufacturer	Nexperia USA Inc.
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 ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74ALVC125D,112 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
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are categorized as follows:

Direct Manufacturer Substitute: SN74ALVC125DR (Texas Instruments) - Identical electrical specifications with 14-SOIC packaging in Cut Tape & Digi-Reel format.

Similar Manufacturer Substitute: SN74ALVC125NSR (Texas Instruments) - Identical electrical specifications with 14-SO packaging in Tape & Reel format. Package width differs (5.30mm vs. 3.90mm).

Parametric Equivalents: SN74ALVC125D and SN74ALVC126D (Texas Instruments) - Identical electrical specifications and 14-SOIC packaging. SN74ALVC126D uses base product number 74ALVC126 but maintains full parameter compatibility.

Parameter Comparison

Parameter	74ALVC125D,112 (Nexperia)	SN74ALVC125DR (TI)	SN74ALVC125NSR (TI)	SN74ALVC125D (TI)	SN74ALVC126D (TI)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	4	4	4	4	4
Number of Bits per Element	1	1	1	1	1
Output Type	3-State	3-State	3-State	3-State	3-State
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.209", 5.30mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts listed maintain active product status with Texas Instruments, ensuring long-term availability and supply chain continuity compared to the obsolete Nexperia part. All substitutes are ROHS3 compliant and carry MSL Level 1 rating, meeting the same environmental and regulatory requirements as the original component.

For applications requiring identical package dimensions (0.154" width, 3.90mm), select SN74ALVC125DR, SN74ALVC125D, or SN74ALVC126D. The SN74ALVC125DR in Cut Tape & Digi-Reel packaging offers flexibility for both automated assembly and manual component handling. The SN74ALVC125D in Tube packaging and SN74ALVC126D provide alternative packaging formats while maintaining identical electrical performance and footprint compatibility.

For applications where package width tolerance permits, SN74ALVC125NSR in Tape & Reel format (0.209", 5.30mm width) provides an additional sourcing option with equivalent electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC125DR directly replace 74ALVC125D,112 in existing designs?

A: Yes. SN74ALVC125DR maintains identical electrical specifications, output current ratings, supply voltage range, operating temperature range, and 14-SOIC package dimensions (0.154", 3.90mm width). No circuit modifications are required.

Q: What is the difference between SN74ALVC125D and SN74ALVC126D?

A: Both parts are parametric equivalents with identical electrical performance and package dimensions. The difference lies in the base product number designation (74ALVC125 vs. 74ALVC126). All critical parameters including logic type, element count, output type, current ratings, and voltage specifications are identical.

Q: Why does SN74ALVC125NSR have a different package width?

A: SN74ALVC125NSR uses a 14-SO package with 5.30mm width compared to the standard 14-SOIC with 3.90mm width. While electrically equivalent, PCB footprint compatibility must be verified before substitution. This part is suitable only for designs with compatible pad layouts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SN74ALVC125DR, SN74ALVC125NSR, SN74ALVC125D, and SN74ALVC126D) are ROHS3 compliant with MSL Level 1 rating, matching the environmental compliance of the original 74ALVC125D,112.

Q: What packaging formats are available for the Texas Instruments substitutes?

A: SN74ALVC125DR is supplied in Cut Tape & Digi-Reel format. SN74ALVC125NSR is supplied in Tape & Reel format. SN74ALVC125D is supplied in Tube format. SN74ALVC126D is supplied in Tube format. Selection depends on assembly process requirements and volume needs.

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