SM671PEE-ADSS Equivalent & Substitute Parts

Part Overview

The SM671PEE-ADSS is a FLASH NAND (SLC) memory integrated circuit manufactured by Silicon Motion, Inc., with a capacity of 640Gbit organized as 80G x 8. This component features a UFS3.1 interface and is packaged in a 153-TFBGA (11.5x13mm) surface mount configuration. The device operates across an industrial temperature range of -40°C to 85°C and complies with ROHS3 standards.

The SM671PEE-ADSS carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, system maintenance, and production continuity where this component is specified in existing applications.

Substiute Parts

SM671PEE-ADSS

Silicon Motion, Inc.In Stock: 1113SM671PEE-ADSS Datasheet

Current PartRFQ

SM671PEE-AFSS

Silicon Motion, Inc.In Stock: 1018SM671PEE-AFSS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM671PEE-ADSS is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: The substitute part must provide 640Gbit capacity with 80G x 8 organization to maintain functional compatibility with system memory addressing and data width requirements.

Interface Standard: The UFS3.1 interface specification is mandatory. This protocol defines the electrical signaling, timing, and command structure between the memory controller and the IC.

Package Configuration: The 153-TFBGA (11.5x13mm) package specification is required for mechanical fit, PCB layout compatibility, and thermal management characteristics.

Operating Temperature Range: The -40°C to 85°C operating range must be maintained to ensure reliability across specified environmental conditions.

Compliance Standards: ROHS3 compliance and MSL 3 (168 Hours) moisture sensitivity level must be preserved to meet regulatory and manufacturing process requirements.

Base Product Series: Both parts share the SM671 base product number and Ferri-UFS™ series designation, indicating common design lineage and functional architecture.

Parameter Comparison

Engineering Selection Recommendations

The SM671PEE-AFSS is a direct functional equivalent to the SM671PEE-ADSS. All critical electrical, mechanical, and thermal parameters are identical. The primary distinction is product lifecycle status: the SM671PEE-ADSS is classified as Obsolete, while the SM671PEE-AFSS maintains Active status.

For applications currently specified with SM671PEE-ADSS, the SM671PEE-AFSS provides continuity of supply and design compatibility. Both parts comply with ROHS3 standards and carry identical moisture sensitivity classifications, ensuring compatibility with existing manufacturing processes and environmental specifications.

The SM671PEE-AFSS is suitable for new designs, production restocking, and replacement scenarios where the SM671PEE-ADSS is no longer available through standard distribution channels.

Frequently Asked Questions (FAQ)

Q: Can SM671PEE-AFSS be used as a direct replacement for SM671PEE-ADSS in existing designs?

A: Yes. The SM671PEE-AFSS is electrically and mechanically equivalent to the SM671PEE-ADSS. All memory capacity, interface protocol, package dimensions, and operating specifications are identical. No design modifications are required.

Q: What is the difference between these two part numbers?

A: The SM671PEE-ADSS and SM671PEE-AFSS differ only in product lifecycle status. The SM671PEE-ADSS is Obsolete, while the SM671PEE-AFSS is Active. The suffix designations (-ADSS versus -AFSS) reflect internal Silicon Motion product line management. All functional and physical characteristics remain unchanged.

Q: Are there any compatibility concerns with PCB layout or thermal management?

A: No. Both parts use the identical 153-TFBGA (11.5x13mm) package configuration. PCB footprints, solder pad layouts, and thermal characteristics are equivalent. Existing PCB designs require no modification.

Q: Do both parts meet the same compliance and certification requirements?

A: Yes. Both the SM671PEE-ADSS and SM671PEE-AFSS are ROHS3 compliant and carry MSL 3 (168 Hours) moisture sensitivity classification. Manufacturing process requirements and environmental handling procedures are identical.

Q: Why is the SM671PEE-ADSS marked as Obsolete?

A: Obsolete status indicates that Silicon Motion has discontinued active production and support for this specific part number. The SM671PEE-AFSS represents the current active equivalent within the SM671 product family.

Q: What is the inventory status for these parts?

A: The SM671PEE-ADSS has 1030 pieces available as new original stock. The SM671PEE-AFSS has 953 pieces available as new original stock. Availability may vary based on current distribution and demand.