PM8310A-FXI Equivalent & Substitute Parts

Part Overview

The PM8310A-FXI is a Telecom IC Framer manufactured by Microchip Technology, designed for telecommunications interface applications. This component operates across the industrial temperature range of -40°C to 85°C and is housed in a 896-FCBGA (31x31) ball grid array package for surface mount applications.

The PM8310A-FXI is classified as obsolete. Locating equivalent or substitute components is necessary to support legacy system maintenance, design updates, or production continuity when original inventory becomes unavailable.

Substiute Parts

PM8310A-FXI

Microchip TechnologyIn Stock: 1203PM8310A-FXI Datasheet

Current PartRFQ

PM8310A-FEI

Microchip TechnologyIn Stock: 2056PM8310A-FEI Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM8310A-FXI is determined by the following critical parameters:

• Package Compatibility: Both the main part and substitute must use the 896-FCBGA (31x31) ball grid array package to ensure mechanical and electrical fit on existing PCB layouts.
• Mounting Type: Surface mount requirement must be maintained.
• Operating Temperature Range: The -40°C to 85°C industrial temperature range must be supported.
• Manufacturer: Microchip Technology maintains design continuity across the PM8310 series.
• Function: Framer functionality for telecommunications interface applications.
• Number of Circuits: Single circuit configuration.

The PM8310A-FEI meets all substitution criteria as an active product variant within the same manufacturer series, package specification, and functional classification.

Parameter Comparison

Engineering Selection Recommendations

The PM8310A-FEI is the direct substitute for the PM8310A-FXI based on matching package, mounting type, operating temperature range, and functional classification. The substitute part is currently in active production status, ensuring availability for ongoing procurement.

The PM8310A-FEI carries ROHS3 compliance certification, whereas the PM8310A-FXI is non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements. The substitute part has a Moisture Sensitivity Level (MSL) of 3 (168 Hours), compared to MSL 1 (Unlimited) for the original part, which affects storage and handling protocols during assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the PM8310A-FEI be used as a direct replacement for the PM8310A-FXI?

A: Yes. Both parts share identical package specifications (896-FCBGA 31x31), mounting type (surface mount), operating temperature range (-40°C to 85°C), and framer function. The PM8310A-FEI is the active production variant of the same series.

Q: What is the difference in RoHS compliance between these parts?

A: The PM8310A-FXI is RoHS non-compliant, while the PM8310A-FEI is ROHS3 compliant. Selection depends on whether the end application or regulatory jurisdiction requires RoHS certification.

Q: How does the Moisture Sensitivity Level (MSL) difference affect component handling?

A: The PM8310A-FXI has MSL 1 (Unlimited), allowing indefinite storage without moisture control. The PM8310A-FEI has MSL 3 (168 Hours), requiring that the component be used within 168 hours of package opening under controlled humidity conditions. This affects storage, handling, and assembly scheduling.

Q: Are there any interface differences between the PM8310A-FXI and PM8310A-FEI?

A: The PM8310A-FXI specifies E1 and T1 interfaces. The PM8310A-FEI specifies 4-Wire, Serial, and TDM interfaces. Interface compatibility must be verified against the specific application requirements and PCB design.

Q: What is the current availability status of these parts?

A: The PM8310A-FXI is obsolete with 1132 pieces in stock. The PM8310A-FEI is active production with 2006 pieces in stock, providing greater long-term availability assurance.