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SN74LVC125ADE4 Equivalent & Substitute Parts
Part Overview
The SN74LVC125ADE4 is a non-inverting buffer 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 surface mount package. The part is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74LVC125ADE4 |
| 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 SN74LVC125ADE4 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
- 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 Replacements): Parts that maintain identical or compatible electrical specifications and packaging, with active product status and established supply chains.
Parametric Equivalents: Parts that share core functional parameters but may have variations in supply voltage range or operating temperature, requiring design verification for specific application constraints.
Parameter Comparison
| Parameter | SN74LVC125ADE4 | SN74LVC125AD | 74LVC125AD,118 | 74LVC125AS14-13 | MC74LCX125DG | MC74LCX125DR2G | SN74LVC126AD |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Nexperia USA Inc. | Diodes Incorporated | onsemi | onsemi | Texas Instruments |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Number of Bits per Element | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State |
| Current - Output High, Low | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.2V ~ 3.6V | 1.65V ~ 5.5V | 2V ~ 3.6V | 2V ~ 3.6V | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics | Active | Active | Active | Active | Active | Active |
| Packaging | - | Tube | Tape & Reel (TR) | Tape & Reel (TR) | Tube | Tape & Reel (TR) | Tube |
| Inventory Status | 1179 Pcs New Original In Stock | 2100 Pcs New Original In Stock | 98042 Pcs New Original In Stock | 35516 Pcs New Original In Stock | 8990 Pcs New Original In Stock | 6272 Pcs New Original In Stock | 7557 Pcs New Original In Stock |
Engineering Selection Recommendations
Primary Recommendation: SN74LVC125AD (Texas Instruments)
The SN74LVC125AD is the direct MFR recommended substitute. It maintains identical electrical specifications, supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 125°C), and 14-SOIC packaging. Product status is Active with established supply availability. This part is the preferred choice for direct replacement in existing designs.
Secondary Recommendation: 74LVC125AD,118 (Nexperia USA Inc.)
This part offers the widest supply voltage range (1.2V ~ 3.6V) and maintains all core functional parameters. Product status is Active with the highest inventory availability (98042 Pcs). Packaging is Tape & Reel (TR), suitable for high-volume production. This option is suitable for applications requiring extended low-voltage operation.
Alternative Recommendation: 74LVC125AS14-13 (Diodes Incorporated)
This part extends the supply voltage range to 5.5V while maintaining all core functional parameters and operating temperature range. Product status is Active with strong inventory availability (35516 Pcs). This option is suitable for applications requiring higher supply voltage compatibility.
Parametric Equivalent: SN74LVC126AD (Texas Instruments)
The SN74LVC126AD is a parametric equivalent with identical electrical specifications and operating temperature range. The base product number differs (74LVC126 vs. 74LVC125), indicating a different device variant. This part maintains all core functional parameters and is suitable for applications where the specific variant is functionally interchangeable. Product status is Active.
Limited Recommendation: MC74LCX125DG and MC74LCX125DR2G (onsemi)
These parts maintain core functional parameters but operate within a reduced temperature range (-40°C ~ 85°C) compared to the original specification (-40°C ~ 125°C). Supply voltage range is also narrower (2V ~ 3.6V). These options are suitable only for applications where the reduced operating temperature range is acceptable. Product status is Active for both variants.
Frequently Asked Questions (FAQ)
Q: Can I use SN74LVC125AD as a direct replacement for SN74LVC125ADE4?
A: Yes. The SN74LVC125AD is the MFR recommended substitute with identical electrical specifications, supply voltage range, operating temperature range, and 14-SOIC packaging. The primary difference is product status (Active vs. Discontinued) and packaging format (Tube).
Q: What is the difference between 74LVC125AD,118 and SN74LVC125AD?
A: Both parts share identical core functional parameters and 14-SOIC packaging. The 74LVC125AD,118 is manufactured by Nexperia USA Inc. and offers a wider supply voltage range (1.2V ~ 3.6V) compared to the Texas Instruments SN74LVC125AD (1.65V ~ 3.6V). The 74LVC125AD,118 is supplied in Tape & Reel format with higher inventory availability.
Q: Why does 74LVC125AS14-13 have a higher supply voltage range (5.5V)?
A: The 74LVC125AS14-13 is manufactured by Diodes Incorporated and is designed to operate across an extended supply voltage range (1.65V ~ 5.5V). This extended range does not affect core functional parameters but provides compatibility with higher voltage applications. All other electrical specifications remain equivalent.
Q: What is the difference between SN74LVC125AD and SN74LVC126AD?
A: Both parts are manufactured by Texas Instruments and share identical electrical specifications, supply voltage range, operating temperature range, and 14-SOIC packaging. The base product number differs (74LVC125 vs. 74LVC126), indicating different device variants. Functional interchangeability depends on application-specific requirements.
Q: Can I use MC74LCX125DG in place of SN74LVC125ADE4?
A: The MC74LCX125DG maintains core functional parameters but operates within a reduced temperature range (-40°C ~ 85°C) compared to the original specification (-40°C ~ 125°C). This part is suitable only for applications where the reduced operating temperature range is acceptable. Supply voltage range is also narrower (2V ~ 3.6V).
Q: What packaging formats are available for substitute parts?
A: Substitute parts are available in two packaging formats: Tube and Tape & Reel (TR). Tube packaging is suitable for lower-volume applications and manual assembly. Tape & Reel format is optimized for high-volume production and automated assembly processes. All parts maintain the same 14-SOIC physical package dimensions.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed maintain ROHS3 compliance and Moisture Sensitivity Level (MSL) 1 (Unlimited), matching the original SN74LVC125ADE4 specifications.
Q: Which substitute part has the best inventory availability?
A: The 74LVC125AD,118 (Nexperia USA Inc.) offers the highest inventory availability with 98042 Pcs in stock, followed by 74LVC125AS14-13 (Diodes Incorporated) with 35516 Pcs.
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