PEX 8548

PEX 8548: 48 Lane, 9 Port PCI Express Switch, 37.5 x 37.5mm² PBGA

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The ExpressLane™ PEX 8548 device offers 48 PCI Express lanes, capable of configuring up to 9 flexible ports. The switch conforms to the PCI Express Base Specification, rev 1.1. The 48-lane switch enables users to add scalable, high bandwidth I/Os to a wide variety of applications including servers, storage, communications, blade servers, and embedded-control systems. The architecture supports packet cut-thru with the industry's lowest latency of 110ns (x16 to x16). This, combined with large packet memory (1024 byte maximum payload size) and non-blocking internal switch architecture, provide full line-rate on all ports for performance-hungry applications. The PEX 8548 is offered in a 37.5 x 37.5mm² 736-ball PBGA package. This device is available in leaded and lead-free packaging.

Lifecycle Status


Lifecycle Status


Specification Value
Lifecycle Active
DMA --
Lanes 48
Latency 110ns
Packaging Size 37.5mm X 37.5mm
PCI-SIG® Base Spec. r1.1/1.0a
Port Count 9
Power Typ. 4.9
Read Pacing No
Temperature -40°C +85°C
Virtual Channels 1

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Compliance Docs and Certifications (4) i
Data Book (1) i
Design Guide (1) i
Design Notes (3) i
Errata (1) i
Miscellaneous (7) i
Product Brief (1) i
Product Change Notice (PCN) (2) i
Quality & Reliability (1) i
Rapid Development Kit (2) i
Selection Guide (1) i
Test Report (2) i


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Software Development Kit (SDK) (5) i