PM8561B-F3EI

Specialized Overview

The PM8561B-F3EI is a PCIe switch integrated circuit manufactured by Microchip Technology, belonging to the Switchtec Gen 3 family. It provides 24 lanes of PCIe Gen 3 connectivity arranged across 6 ports. The device utilizes a BBGA-650 surface-mount package and supports an operating temperature range from -40°C to +105°C. It includes interfaces for 2-Wire, GPIO, JTAG, and UART communication. The component is classified as a PCI interface IC within the Interface ICs subcategory.

Specialized Feature Summary

• Supports PCIe Gen 3 standard for high-speed data transfer
• Configurable I/O expansion via GPIO, JTAG, and UART interfaces
• Designed for robust operation in extended industrial temperature environments

Specialized Applications

• Data center infrastructure requiring PCIe switching capabilities
• Industrial automation systems with harsh environmental conditions
• Telecommunications equipment needing reliable I/O expansion

Specialized Procurement Notes

Verify the specific ordering suffix F3EI against the official Microchip datasheet to confirm pinout and electrical characteristics. Ensure compatibility with the target PCB footprint for the BBGA-650 package. Check for moisture sensitivity level requirements during storage and handling procedures before assembly.

Specialized Selection Notes

Select this component when a 6-port, 24-lane PCIe Gen 3 switch is required. Compare thermal performance and power consumption against alternative Switchtec models if system constraints are tight. Confirm that the BBGA-650 package size fits the mechanical design envelope of the host application.

Specialized Part Context

This part belongs to the Microchip Switchtec PCIe switch portfolio, which offers non-transparent bridging and I/O virtualization features. It is distinct from other PM8xxx series parts based on lane count and port configuration. The F3EI suffix typically denotes specific commercial or industrial grade variations within the product line.

Specialized Replacement Considerations

Consult the Microchip cross-reference guide for verified substitutes. Potential alternatives may include other Switchtec Gen 3 models with similar lane counts, such as the PM8532B series, subject to pin compatibility verification.