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SN74LVC126ADRE4 Equivalent & Substitute Parts
Part Overview
The SN74LVC126ADRE4 is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 4 elements with 1 bit per element and 3-state output capability. This device operates across a supply voltage range of 1.65V to 3.6V and is housed in a 14-SOIC package. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and procurement needs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74LVC126ADRE4 |
| 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 SN74LVC126ADRE4 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: MFR Recommended substitutes (direct part number equivalents with active product status) and Parametric Equivalents (functionally identical parts with identical electrical and mechanical specifications). Packaging format variations (Cut Tape, Tape & Reel, Digi-Reel) do not affect functional substitution but may impact procurement and handling requirements.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements | Output Type | Current (mA) | Voltage Supply | Temp Range | Package | Product Status | Grade |
|---|---|---|---|---|---|---|---|---|---|---|
| SN74LVC126ADRE4 | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Discontinued | Commercial |
| SN74LVC126ADR | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| SN74LVC125ADR | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| SN74LVC125ADRG3 | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| SN74LVC125ADT | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| SN74LVC125AQDRQ1 | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Automotive (AEC-Q100) |
| SN74LVC126ADT | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| SN74LVC126AQDRG4Q1 | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Automotive (AEC-Q100) |
| SN74LVC126AQDRQ1 | Texas Instruments | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Automotive (AEC-Q100) |
| 74LVC126AD,118 | Nexperia USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
| 74LVC126AS14-13 | Diodes Incorporated | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 24/24 | 1.65V ~ 3.6V | -40°C ~ 125°C | 14-SOIC | Active | Commercial |
Engineering Selection Recommendations
For direct replacement of the discontinued SN74LVC126ADRE4, select SN74LVC126ADR from Texas Instruments. This part maintains identical electrical specifications, package configuration, and commercial-grade qualification while offering active product status and higher inventory availability.
For applications requiring automotive-grade qualification with AEC-Q100 certification, SN74LVC125AQDRQ1, SN74LVC126AQDRG4Q1, or SN74LVC126AQDRQ1 are suitable alternatives. These parts meet the same functional and electrical requirements while providing automotive-grade reliability assurance.
For multi-source procurement strategies, 74LVC126AD,118 (Nexperia USA Inc.) and 74LVC126AS14-13 (Diodes Incorporated) provide functionally equivalent alternatives with active product status. The Nexperia part supports an extended lower supply voltage limit of 1.2V, offering additional design flexibility in low-voltage applications.
Packaging format selection (Cut Tape, Tape & Reel, or Digi-Reel) should be determined by assembly process requirements and volume considerations, as these variations do not affect functional performance.
Frequently Asked Questions (FAQ)
Q: Can SN74LVC125 series parts substitute for SN74LVC126 series parts?
A: Yes. Both the SN74LVC125 and SN74LVC126 series share identical electrical specifications, element count, output type, and package configuration. The functional difference between these series does not affect substitution eligibility for the specified parameters.
Q: What is the difference between commercial-grade and automotive-grade versions?
A: Automotive-grade parts (identified by "AQ" in the part number and AEC-Q100 qualification) undergo additional qualification testing and reliability screening for automotive applications. Commercial-grade parts are suitable for general industrial and consumer applications. Both grades meet identical electrical and thermal specifications.
Q: Does packaging format affect functional compatibility?
A: No. Cut Tape (CT), Digi-Reel, and Tape & Reel (TR) packaging formats contain identical die and electrical performance. Packaging selection impacts procurement, handling, and assembly process compatibility only.
Q: Why does the Nexperia part specify 1.2V minimum supply voltage while others specify 1.65V?
A: The Nexperia 74LVC126AD,118 supports operation at lower supply voltages (1.2V minimum) compared to Texas Instruments and Diodes Incorporated versions (1.65V minimum). This represents an extended operating range and does not affect substitution for applications operating within the 1.65V to 3.6V range.
Q: Is the discontinued SN74LVC126ADRE4 functionally identical to the active SN74LVC126ADR?
A: Yes. Both parts are functionally identical across all specified electrical, thermal, and mechanical parameters. The discontinuation status reflects supply chain decisions only and does not indicate functional obsolescence.
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