SM671PXB-ADSS Equivalent & Substitute Parts

Part Overview

The SM671PXB-ADSS is a FLASH NAND (SLC) memory integrated circuit manufactured by Silicon Motion, Inc., with a capacity of 80Gbit and UFS3.1 interface. This component is packaged in a 153-TFBGA (11.5x13mm) surface mount configuration and operates across a temperature range of -25°C to 85°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

SM671PXB-ADSS

Silicon Motion, Inc.In Stock: 689SM671PXB-ADSS Datasheet

Current PartRFQ

SM671PXB-AFSS

Silicon Motion, Inc.In Stock: 807SM671PXB-AFSS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SM671PXB-ADSS is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: The substitute part must provide 80Gbit capacity with 10G x 8 memory organization to maintain functional compatibility with existing circuit designs.

Interface Standard: UFS3.1 interface compatibility is mandatory for proper communication protocol alignment with host controllers and system architecture.

Package Configuration: The 153-TFBGA (11.5x13mm) surface mount package ensures mechanical and electrical compatibility with PCB layouts and reflow soldering processes.

Operating Temperature Range: The -25°C to 85°C specification must be maintained to ensure reliable operation across specified environmental conditions.

Compliance Standards: RoHS3 compliance and MSL 3 (168 Hours) moisture sensitivity level must be preserved for regulatory and manufacturing process requirements.

Manufacturer Consistency: Silicon Motion, Inc. as the original manufacturer ensures design continuity and technical support alignment.

Parameter Comparison

Engineering Selection Recommendations

The SM671PXB-AFSS serves as a direct functional equivalent to the SM671PXB-ADSS. Both components share identical electrical specifications, memory capacity, interface protocol, and physical packaging. The primary distinction is product status: the SM671PXB-ADSS is classified as obsolete, while the SM671PXB-AFSS maintains active status.

For new designs and ongoing production requirements, the SM671PXB-AFSS is the appropriate selection. Both parts maintain ROHS3 compliance and identical moisture sensitivity specifications, ensuring compatibility with current manufacturing and environmental standards. The substitute part is available in higher inventory quantities (755 Pcs versus 676 Pcs), supporting sustained procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the SM671PXB-AFSS be used as a direct replacement for the SM671PXB-ADSS in existing designs?

A: Yes. The SM671PXB-AFSS is electrically and mechanically equivalent to the SM671PXB-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 significance of the product status difference between these parts?

A: The SM671PXB-ADSS is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The SM671PXB-AFSS maintains active status, ensuring continued manufacturing support, availability, and technical documentation. For new designs and production continuity, the active part is the appropriate selection.

Q: Are the RoHS and moisture sensitivity specifications identical?

A: Yes. Both parts are ROHS3 compliant and carry MSL 3 (168 Hours) moisture sensitivity ratings. They meet identical regulatory and manufacturing process requirements.

Q: Does the package configuration differ between these parts?

A: No. Both parts use the 153-TFBGA (11.5x13mm) surface mount package. PCB layouts, reflow profiles, and assembly processes remain unchanged.

Q: What memory interface standard do these parts support?

A: Both parts support the UFS3.1 interface standard with 80Gbit capacity and 10G x 8 memory organization. Host controller compatibility is maintained across both components.