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SM671PED-ADSS Equivalent & Substitute Parts
Part Overview
The SM671PED-ADSS is a FLASH NAND (SLC) memory integrated circuit manufactured by Silicon Motion, Inc., with a capacity of 320Gbit and UFS3.1 interface. This component is packaged in a 153-TFBGA configuration with dimensions of 11.5x13mm and operates across a temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent components for ongoing design requirements and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Type | Non-Volatile FLASH |
| Technology | FLASH - NAND (SLC) |
| Memory Size | 320Gbit |
| Memory Organization | 40G x 8 |
| Memory Interface | UFS3.1 |
| Package Type | 153-TFBGA (11.5x13mm) |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the SM671PED-ADSS is determined by strict equivalence across the following critical parameters:
Memory Capacity & Organization: The substitute part must maintain 320Gbit capacity with 40G x 8 organization to ensure functional compatibility with existing circuit designs and firmware implementations.
Interface Protocol: UFS3.1 interface compatibility is mandatory for data transfer protocol alignment and system integration.
Package Specification: The 153-TFBGA package with 11.5x13mm dimensions ensures mechanical fit within PCB layouts and thermal management characteristics.
Temperature Operating Range: The -40°C to 85°C range must be maintained to support the intended application environment.
Compliance Standards: ROHS3 compliance and MSL 3 rating are required for regulatory adherence and manufacturing process compatibility.
Base Product Series: Both parts share the SM671 base product number and Ferri-UFS™ series designation, confirming architectural compatibility.
Parameter Comparison
| Parameter | SM671PED-ADSS (Main Part) | SM671PED-AFSS (Substitute) | Compatibility |
|---|---|---|---|
| Manufacturer | Silicon Motion, Inc. | Silicon Motion, Inc. | Identical |
| Memory Type | Non-Volatile FLASH | Non-Volatile FLASH | Identical |
| Technology | FLASH - NAND (SLC) | FLASH - NAND (SLC) | Identical |
| Memory Size | 320Gbit | 320Gbit | Identical |
| Memory Organization | 40G x 8 | 40G x 8 | Identical |
| Memory Interface | UFS3.1 | UFS3.1 | Identical |
| Package / Case | 153-TFBGA | 153-TFBGA | Identical |
| Supplier Device Package | 153-BGA (11.5x13) | 153-BGA (11.5x13) | Identical |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level | 3 (168 Hours) | 3 (168 Hours) | Identical |
| Product Status | Obsolete | Active | Substitute is Active |
| Series | Ferri-UFS™ | Ferri-UFS™ | Identical |
| Base Product Number | SM671 | SM671 | Identical |
Engineering Selection Recommendations
The SM671PED-AFSS serves as a direct functional equivalent to the SM671PED-ADSS. The primary distinction between these components is product status: the SM671PED-ADSS is classified as obsolete, while the SM671PED-AFSS maintains active status with current manufacturing availability.
All electrical, mechanical, and thermal parameters are identical between the two parts. Both components comply with ROHS3 standards and maintain equivalent moisture sensitivity ratings. The SM671PED-AFSS is suitable for direct substitution in applications currently utilizing the SM671PED-ADSS, with no design modifications required.
For new designs or production continuity planning, the SM671PED-AFSS is the appropriate selection due to its active product status and confirmed availability. The obsolete status of the SM671PED-ADSS indicates that long-term supply cannot be assured.
Frequently Asked Questions (FAQ)
Q: Can the SM671PED-AFSS be used as a direct replacement for the SM671PED-ADSS?
A: Yes. The SM671PED-AFSS is electrically and mechanically identical to the SM671PED-ADSS across all specified parameters, including memory capacity, interface protocol, package configuration, and operating temperature range. No circuit modifications are required.
Q: What is the primary reason for substitution?
A: The SM671PED-ADSS is classified as obsolete, indicating discontinued manufacturing. The SM671PED-AFSS is an active product with current availability, ensuring supply chain continuity.
Q: Are the package dimensions identical?
A: Yes. Both parts use the 153-TFBGA package with dimensions of 11.5x13mm. PCB layout and thermal design considerations remain unchanged.
Q: Do both parts support the same UFS interface version?
A: Yes. Both the SM671PED-ADSS and SM671PED-AFSS implement UFS3.1 interface protocol, ensuring full compatibility with existing firmware and system architecture.
Q: Are there any compliance differences between these parts?
A: No. Both parts are ROHS3 compliant and maintain identical moisture sensitivity levels (MSL 3, 168 Hours), meeting the same regulatory and manufacturing process requirements.
Q: What is the memory capacity of these components?
A: Both parts provide 320Gbit capacity with 40G x 8 organization, supporting identical data storage and access patterns.
Q: Are there any temperature range differences?
A: No. Both components operate across the identical temperature range of -40°C to 85°C, suitable for the same application environments.
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