SM671PEA-ADSS Equivalent & Substitute Parts

Part Overview

The SM671PEA-ADSS is a FLASH NAND (SLC) memory integrated circuit manufactured by Silicon Motion, Inc., designed for non-volatile storage applications. This device features 40Gbit capacity with UFS3.1 interface protocol, housed in a 153-TFBGA package measuring 11.5x13mm. The component operates across an industrial temperature range of -40°C to 85°C and maintains ROHS3 compliance.

The SM671PEA-ADSS carries an Obsolete product status, indicating that the manufacturer has discontinued active production and support. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this memory architecture.

Substiute Parts

SM671PEA-ADSS

Silicon Motion, Inc.In Stock: 906SM671PEA-ADSS Datasheet

Current PartRFQ

SM671PEA-AFSS

Silicon Motion, Inc.In Stock: 962SM671PEA-AFSS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM671PEA-ADSS is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: The substitute part must provide identical 40Gbit capacity with 5G x 8 memory organization to ensure functional compatibility with existing firmware and system architecture.

Interface Protocol: UFS3.1 interface specification is mandatory. This protocol defines the electrical signaling, command structure, and data transfer methodology between the host controller and memory device.

Package Specification: The 153-TFBGA package with 11.5x13mm dimensions establishes the physical footprint and pin configuration. Substitutes must match this exact package specification for PCB compatibility.

Technology Node: FLASH NAND (SLC) technology classification ensures consistent performance characteristics, endurance ratings, and electrical behavior within the system design.

Environmental Specifications: Operating temperature range of -40°C to 85°C and Moisture Sensitivity Level 3 (168 Hours) define the reliability envelope for the application environment.

Compliance Standards: ROHS3 compliance is required to maintain regulatory adherence and supply chain compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SM671PEA-AFSS qualifies as a direct substitute for the SM671PEA-ADSS based on complete electrical and mechanical parameter equivalence. Both devices share identical memory specifications, interface protocols, package dimensions, and environmental operating ranges.

The primary distinction between these parts is product lifecycle status. The SM671PEA-ADSS is classified as Obsolete, indicating discontinued manufacturing and support from Silicon Motion, Inc. The SM671PEA-AFSS maintains Active product status, ensuring ongoing availability, manufacturing support, and supply chain continuity.

From a compliance perspective, both parts maintain ROHS3 certification, satisfying regulatory requirements for hazardous substance restrictions. The SM671PEA-AFSS additionally carries REACH Unaffected status, providing supplementary regulatory documentation.

For new designs or production continuity, the SM671PEA-AFSS is the appropriate selection. For legacy system maintenance where SM671PEA-ADSS inventory exists, existing stock may be utilized until depletion, after which transition to SM671PEA-AFSS is required.

Frequently Asked Questions (FAQ)

Q: Can SM671PEA-AFSS be used as a direct replacement for SM671PEA-ADSS in existing designs?

A: Yes. The SM671PEA-AFSS is electrically and mechanically equivalent to the SM671PEA-ADSS. All critical parameters including memory capacity (40Gbit), interface protocol (UFS3.1), package specification (153-TFBGA 11.5x13mm), and operating temperature range (-40°C to 85°C) are identical. No design modifications are required.

Q: What is the significance of the product status difference between these parts?

A: The SM671PEA-ADSS is Obsolete, meaning Silicon Motion, Inc. has ceased production and active support. The SM671PEA-AFSS is Active, indicating current manufacturing availability and ongoing technical support. For new production or long-term supply requirements, the Active part is the appropriate selection.

Q: Are there any package or pinout differences between these devices?

A: No. Both parts utilize the identical 153-TFBGA package with 11.5x13mm dimensions. Pinout configuration, ball grid array layout, and mechanical footprint are equivalent. PCB designs require no modification for substitution.

Q: Do both parts meet the same compliance standards?

A: Both SM671PEA-ADSS and SM671PEA-AFSS are ROHS3 compliant. The SM671PEA-AFSS additionally carries REACH Unaffected certification. Both parts maintain Moisture Sensitivity Level 3 (168 Hours) classification.

Q: What is the memory interface difference between UFS2.1 and UFS3.1 mentioned in the descriptions?

A: The provided specifications indicate both parts implement UFS3.1 interface protocol. The descriptions reference UFS2.1 in the summary field; however, the detailed interface specification for both parts is UFS3.1. The UFS3.1 specification governs electrical compatibility and command protocol implementation.

Q: Are there inventory considerations when selecting between these parts?

A: The SM671PEA-ADSS has 852 pieces in stock as new original inventory. The SM671PEA-AFSS has 922 pieces available. For immediate requirements, either part is available. For long-term supply planning, the SM671PEA-AFSS Active status ensures continued availability beyond current inventory levels.