PEX8533-AA25BI G

Analog Switches - Special Purpose Overview

The PEX8533-AA25BI G is a 32-lane, 6-port PCI Express switch manufactured by Broadcom Limited. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 35mm x 35mm, 680-ball PBGA package. The device supports PCIe Base Specification r1.1 with integrated SerDes and typical power consumption of 3.3 Watts. Key performance metrics include a packet latency of 115ns for symmetric x8 ports, a maximum payload size of 1024 bytes, and full line rate on all ports. Configuration flexibility allows port widths from x1 to x16.

Analog Switches - Special Purpose Feature Summary

• Supports flexible port configurations with up to six configurable ports capable of x1, x2, x4, x8, or x16 lane widths.
• Provides high-performance switching with non-blocking internal fabric and cut-through architecture.
• Includes three Standard Hot-Plug Controllers for high availability applications.
• Features advanced error reporting, end-to-end CRC protection, and granular SerDes power management.

Analog Switches - Special Purpose Applications

• Host-centric fan-out server designs
• Peer-to-peer backplane and switch fabric systems
• Dual graphics and high-resolution image processing
• Redundant switch fabrics for blade servers

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance and Pb-Free designation matching the suffix 'G'. Validate that the specific ordering code aligns with industrial temperature requirements (-40°C to +85°C) and the 680-ball PBGA package format before finalizing acquisition.

Analog Switches - Special Purpose Selection Notes

Select this model when requiring a 32-lane PCIe Gen1 switch with six independent ports. Ensure system design accommodates the 35x35mm PBGA footprint and 3.3W typical power dissipation. Verify compatibility with existing host software drivers and I2C configuration interfaces if dynamic port width adjustment is required.

Analog Switches - Special Purpose Part Context

This component belongs to the PLX ExpressLane family of PCI Express switches. It serves as a scalable interconnect solution for expanding PCIe connectivity in storage, communications, and embedded control platforms. The device enables both symmetric and asymmetric lane configurations to optimize bandwidth distribution across various I/O functions.

Analog Switches - Special Purpose Replacement Considerations

The datasheet indicates pin compatibility with the PEX 8532. Evaluate the PEX 8532 as a potential substitute based on identical package dimensions and electrical interface requirements while verifying functional equivalence for the specific application constraints.

Analog Switches - Special Purpose FAQ

What is the maximum payload size supported by the PEX8533?

The device supports a maximum payload size of 1024 bytes.

How many ports include Standard Hot-Plug Controller features?

Three of the six available ports include a Standard Hot-Plug Controller.

Can the upstream port designation be changed dynamically?

Yes, any of the ports can be designated as the upstream port, and this configuration can be changed dynamically.