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XC74WL126ASR Equivalent & Substitute Parts
Part Overview
The XC74WL126ASR is a non-inverting buffer logic integrated circuit manufactured by Torex Semiconductor Ltd. This device features 2 elements with 1 bit per element and 3-state output capability, housed in an 8-MSOPB surface mount package. The part operates across a supply voltage range of 2V to 5.5V and is rated for operating temperatures from -40°C to 85°C.
The XC74WL126ASR is classified as obsolete. Identification of equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this logic buffer function.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 1 |
| Output Type | 3-State |
| Current - Output High, Low | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.110", 2.80mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the XC74WL126ASR are identified based on functional and electrical equivalence. The substitution criteria are strictly limited to the following parameters:
- Logic Type: Buffer, Non-Inverting
- Number of Elements: 2
- Number of Bits per Element: 1
- Output Type: 3-State
- Current - Output High, Low: 8mA, 8mA
- Voltage - Supply: 2V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 8-TSSOP, 8-MSOP (0.110", 2.80mm Width)
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Parts meeting all these criteria are classified as parametric equivalents and are suitable for direct substitution in applications where the XC74WL126ASR is specified.
Parameter Comparison
| Parameter | XC74WL126ASR (Torex) | TC7WH125FU,LJ(CT (Toshiba) |
|---|---|---|
| Manufacturer | Torex Semiconductor Ltd | Toshiba Semiconductor and Storage |
| Product Status | Obsolete | Active |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 2 | 2 |
| Number of Bits per Element | 1 | 1 |
| Output Type | 3-State | 3-State |
| Current - Output High, Low | 8mA, 8mA | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V | 2V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.110", 2.80mm Width) | 8-TSSOP, 8-MSOP (0.110", 2.80mm Width) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8542.39.0001 | 8542.39.0001 |
Engineering Selection Recommendations
The TC7WH125FU,LJ(CT manufactured by Toshiba Semiconductor and Storage is a parametric equivalent substitute for the XC74WL126ASR. This substitute part satisfies all electrical, mechanical, and environmental specifications required for direct replacement.
The primary advantage of selecting the TC7WH125FU,LJ(CT is its active product status. The XC74WL126ASR is classified as obsolete, which presents long-term supply chain risk. The Toshiba equivalent maintains full functional compatibility while offering ongoing availability and manufacturing support.
Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications, ensuring regulatory and trade compliance equivalence. The MSL rating of 1 (Unlimited) for both parts indicates identical moisture handling requirements during storage and assembly.
Frequently Asked Questions (FAQ)
Q: Can the TC7WH125FU,LJ(CT be used as a direct replacement for the XC74WL126ASR?
A: Yes. The TC7WH125FU,LJ(CT meets all electrical and mechanical parameters specified for the XC74WL126ASR, including logic type, element count, bit configuration, output type, current ratings, supply voltage range, operating temperature range, package dimensions, and compliance certifications.
Q: What is the difference in packaging between these parts?
A: Both parts use identical package specifications: 8-TSSOP, 8-MSOP with 0.110" (2.80mm) width. The XC74WL126ASR is supplied in 8-MSOPB configuration, while the TC7WH125FU,LJ(CT is supplied in 8-SSOP configuration. These designations refer to supplier-specific packaging formats for the same physical package type and are mechanically and electrically equivalent.
Q: Why is the XC74WL126ASR classified as obsolete?
A: The XC74WL126ASR is an obsolete product from Torex Semiconductor Ltd. Obsolete status indicates that the manufacturer has discontinued production and support for this part number. The TC7WH125FU,LJ(CT from Toshiba remains in active production and provides equivalent functionality.
Q: Are there any compliance or regulatory differences between these parts?
A: No. Both parts carry identical ROHS3 compliance status, ECCN classification (EAR99), and HTSUS code (8542.39.0001). Both parts have MSL rating of 1 (Unlimited), indicating identical moisture sensitivity handling requirements.
Q: What is the supply voltage compatibility range for these parts?
A: Both the XC74WL126ASR and TC7WH125FU,LJ(CT operate across a supply voltage range of 2V to 5.5V, making them suitable for use in both 3.3V and 5V logic systems.
Q: Are the output current specifications identical?
A: Yes. Both parts provide 8mA output current capability for both high and low states, ensuring equivalent drive capability in circuit applications.
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