SM662PXE-BDSS Equivalent & Substitute Parts

Part Overview

The SM662PXE-BDSS 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 operates as a non-volatile eMMC memory device in a 153-BGA (11.5x13mm) surface mount package. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain identical memory capacity, organization, interface protocol, and operating temperature range while accommodating different package configurations.

Substiute Parts

SM662PXE-BDSS

Silicon Motion, Inc.In Stock: 984SM662PXE-BDSS Datasheet

Current PartRFQ

SM662PXE-BESS

Silicon Motion, Inc.In Stock: 801SM662PXE-BESS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM662PXE-BDSS is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: The substitute part must provide 640Gbit total capacity with 80G x 8 organization to ensure data storage compatibility and interface protocol alignment.

Memory Interface Protocol: Both parts must implement eMMC interface standard to guarantee electrical and logical compatibility with host controllers and firmware implementations.

Operating Temperature Range: The substitute must support the full -25°C ~ 85°C operating window to maintain thermal performance specifications across all deployment environments.

Manufacturer & Series: Parts must originate from Silicon Motion, Inc., and belong to the Ferri-eMMC® series to ensure consistent electrical characteristics and firmware support.

Compliance Standards: Both parts must maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL 3) to satisfy regulatory and manufacturing process requirements.

Package Configuration: While the physical BGA footprint differs between the main part (153-BGA) and substitute (100-BGA), both are surface mount packages with equivalent electrical performance. Package selection depends on PCB layout constraints and available board space.

Parameter Comparison

Engineering Selection Recommendations

SM662PXE-BESS is the qualified substitute for SM662PXE-BDSS based on the following engineering criteria:

Functional Equivalence: Both parts deliver identical memory capacity (640Gbit), organization (80G x 8), and eMMC interface protocol. Electrical performance and data access characteristics are equivalent across all specified operating conditions.

Compliance Alignment: The substitute maintains ROHS3 compliance and identical Moisture Sensitivity Level (MSL 3, 168 Hours), satisfying regulatory and manufacturing process requirements without modification to assembly procedures.

Product Status Advantage: SM662PXE-BESS holds Active product status, ensuring continued availability, manufacturing support, and supply chain stability. The main part SM662PXE-BDSS is classified as Obsolete, making the substitute the appropriate long-term solution.

Package Consideration: The substitute employs a 100-BGA (14x18mm) footprint compared to the main part's 153-BGA (11.5x13mm) configuration. PCB layout redesign is required to accommodate the different ball grid array pattern. This represents the only design modification necessary for substitution.

Inventory Availability: SM662PXE-BESS maintains active stock (786 Pcs New Original In Stock), providing immediate procurement capability for new designs and production requirements.

Frequently Asked Questions (FAQ)

Q: Can SM662PXE-BESS directly replace SM662PXE-BDSS without PCB modification?

A: No. While both parts are electrically and functionally equivalent, they employ different BGA package footprints (153-BGA versus 100-BGA). PCB layout redesign is required to accommodate the different ball grid array pattern and pad spacing. The eMMC interface protocol and electrical characteristics remain identical.

Q: Are the operating temperature ranges identical between the main part and substitute?

A: Yes. Both SM662PXE-BDSS and SM662PXE-BESS operate across the identical temperature range of -25°C ~ 85°C. No thermal performance differences exist between the two parts.

Q: What is the significance of the different package designations (153-TFBGA versus 100-LBGA)?

A: The package designation indicates the ball grid array configuration and physical dimensions. 153-TFBGA measures 11.5x13mm with 153 solder balls, while 100-LBGA measures 14x18mm with 100 solder balls. Both are surface mount packages suitable for automated assembly. Package selection depends on available PCB board space and layout constraints.

Q: Do both parts comply with the same regulatory standards?

A: Yes. Both SM662PXE-BDSS and SM662PXE-BESS are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL 3, 168 Hours) ratings. No differences exist in regulatory compliance or manufacturing process requirements.

Q: Why is SM662PXE-BESS classified as Active while SM662PXE-BDSS is Obsolete?

A: Product status reflects manufacturer support and availability. SM662PXE-BDSS has reached end-of-life status (Obsolete), indicating discontinued production and limited future availability. SM662PXE-BESS remains in active production, ensuring continued supply chain support and manufacturing availability for new designs.

Q: Are the memory interface protocols identical between both parts?

A: Yes. Both parts implement the eMMC (embedded MultiMediaCard) interface standard. No protocol differences, command sets, or electrical interface variations exist between SM662PXE-BDSS and SM662PXE-BESS.

Q: What is the memory organization specification, and why is it important for substitution?

A: Memory organization is specified as 80G x 8, indicating 80 gigabits of addressable memory with 8-bit data width. This organization is identical in both parts and determines compatibility with host controller firmware and data access protocols. Substitution requires identical organization to ensure proper memory addressing and data transfer operations.