PM8534B-FEI

Overview

The PM8534B-FEI is a PCIe switch integrated circuit manufactured by Microchip Technology, belonging to the Switchtec PFX family. It provides 64 lanes and 32 ports of connectivity. The device supports PCIe Gen 3 specifications for high-speed data transfer. It operates within a temperature range of -40°C to +105°C. The component utilizes a BBGA-1311 surface-mount package. Power dissipation is rated at 22.1 W. Management interfaces include 2-Wire, GPIO, and UART protocols.

Feature Summary

• Provides scalable PCIe switching fabric with multiple ports
• Supports advanced management via standard serial interfaces
• Designed for robust operation in extended industrial temperature ranges

Applications

• Server infrastructure expansion
• Storage area network (SAN) connectivity
• High-performance computing systems

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct package and temperature grade. Confirm moisture sensitivity level handling requirements prior to assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement plans.

Selection Notes

Select this component when a high-port-count PCIe Gen 3 switch is required. Ensure the design accommodates the BBGA-1311 footprint and thermal dissipation needs. Verify that the system power budget aligns with the specified power dissipation rating. Confirm compatibility with existing PCIe endpoint devices and host bridge controllers.

Part Context

This part belongs to the Microchip Switchtec PFX series, designed for enterprise and industrial applications requiring extensive PCIe connectivity. It complements other Switchtec models like the PM8536B which offers higher lane counts. The series focuses on providing reliable interconnect solutions for complex system architectures.

Replacement Considerations

Direct substitutes may include the PM8536B-FEI for higher density requirements or PM8564B-FEI for different form factors. Verify pinout and electrical compatibility before substitution. Consult Microchip engineering for validated alternative part numbers.