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74LVC125APW/AUJ Equivalent & Substitute Parts
Part Overview
The 74LVC125APW/AUJ is a non-inverting buffer IC manufactured by NXP USA Inc., designed for logic signal buffering applications. This 4-element, 1-bit per element buffer features 3-state output capability and operates across a supply voltage range of 1.2V to 3.6V. The device is housed in a 14-TSSOP surface mount package and maintains active product status with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence within the 74LVC logic family.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| 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 | 1.2V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 74LVC125APW/AUJ 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 Ratings: 24mA output high and low
- Supply Voltage Range: 1.2V ~ 3.6V
- Operating Temperature Range: -40°C ~ 125°C
- Package: 14-TSSOP surface mount
- RoHS3 Compliance and MSL Level 1
Substitute parts are grouped into two categories: standard industrial-grade equivalents and automotive-grade qualified variants. All substitutes maintain identical electrical performance and package specifications. Automotive-grade variants include AEC-Q100 qualification, suitable for applications requiring automotive reliability standards.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Elements | Output Type | Supply Voltage | Operating Temp | Package | Grade | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| 74LVC125APW/AUJ | NXP USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-TSSOP | Industrial | 870 |
| 74LVC125APW,118 | Nexperia USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-TSSOP | Industrial | 67937 |
| 74LVC125APW-Q100J | Nexperia USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-TSSOP | Automotive (AEC-Q100) | 3110 |
| 74LVC126APW,118 | Nexperia USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-TSSOP | Industrial | 5326 |
| 74LVC126APW-Q100J | Nexperia USA Inc. | Buffer, Non-Inverting | 4 x 1-bit | 3-State | 1.2V ~ 3.6V | -40°C ~ 125°C | 14-TSSOP | Automotive (AEC-Q100) | 3045 |
Engineering Selection Recommendations
All listed substitute parts maintain full electrical and mechanical compatibility with the 74LVC125APW/AUJ. Selection between industrial-grade and automotive-grade variants depends on application requirements:
Industrial-grade substitutes (74LVC125APW,118 and 74LVC126APW,118) are suitable for standard commercial and consumer applications. These parts carry the highest inventory availability, with 74LVC125APW,118 offering 67,937 units in stock.
Automotive-grade substitutes (74LVC125APW-Q100J and 74LVC126APW-Q100J) include AEC-Q100 qualification and are required for automotive applications subject to automotive reliability and qualification standards. Both automotive variants maintain identical electrical specifications while meeting automotive industry compliance requirements.
All parts are RoHS3 compliant with MSL Level 1 rating and active product status, ensuring long-term availability and regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can 74LVC125APW,118 be used as a direct replacement for 74LVC125APW/AUJ?
A: Yes. Both parts are parametrically equivalent non-inverting buffers with identical electrical specifications, output current ratings, supply voltage range, operating temperature range, and 14-TSSOP package. The primary difference is packaging format (Tape & Reel vs. standard packaging) and manufacturer designation.
Q: What is the functional difference between 74LVC125 and 74LVC126 variants?
A: Both 74LVC125 and 74LVC126 are 4-element non-inverting buffers with 3-state outputs and identical electrical parameters. They are functionally equivalent for buffering applications and share the same 14-TSSOP package footprint.
Q: When should automotive-grade variants (AEC-Q100) be selected?
A: Automotive-grade variants (74LVC125APW-Q100J and 74LVC126APW-Q100J) must be selected for applications subject to automotive industry standards and reliability requirements. These parts carry AEC-Q100 qualification, which certifies compliance with automotive qualification standards.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts are RoHS3 compliant with MSL Level 1 rating, meeting environmental and regulatory requirements for commercial and industrial applications.
Q: Does package format affect electrical performance?
A: No. Package format differences (such as Tape & Reel designation) do not affect electrical performance. All parts maintain identical electrical specifications and 14-TSSOP physical package dimensions.
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