PEX 8508
8 Lane, 5 Port PCI Express Switch, 19 x 19mm PBGA
The ExpressLane™ PEX 8508 8-lane, 5-port switch product offers PCI Express switching capability conforming to the PCI Express Specification r1.1. This device enables users to add low cost, scalable high bandwidth switching, both fan-in/out and peer-to-peer, to a wide variety of applications including office automation, network interface adapters, docking stations, AMC cards, and processor isolation for servers, storage, and communications. Non-transparent bridging allows the designer to isolate processors in multi-host designs. This switch is hardware configurable and software programmable, allowing users to tailor their port configurations and quality-of-service system needs to suit their application requirements. The PEX 8508 is offered in a 19 x 19mm 296-ball PBGA. The device is available in leaded and lead-free packaging.
Page Index
Related Gen 1 Devices
Related Gen 2 Devices
Supporting Documentation
- PCIe Technical Info & White Papers
- General PLX Product Documentation
- Support Documentation (Quality, FAQs, RoHS...)
Hot Applications
Usage Models
Suitable for host-centric as well as Intelligent I/O applications
PEX 8508 Technical Documentation
| Document/Resources | Everyone Access | Requires Membership | Requires NDA | Description | Version | Date |
|---|---|---|---|---|---|---|
| Product Brief | Download | Product Overview | 1.7 | 05/07 | ||
| Data Book | Download | Detailed Technical Specifications | 1.3 | 05/07 | ||
| Design Notes | Download | I2C Level Shifting and Voltage Management | 1.0 | 08/07 | ||
| Download | Programmable Revision ID | 1.0 | 06/07 | |||
| Download | EEPROM Design Note | 1.1 | 07/07 | |||
| Download | Power Sequencing Design Note | 1.0 | 01/06 | |||
| Download | Performance Optimization Design Note | 1.0 | 01/06 | |||
| Download | Quick Start Design Note | 1.1 | 05/06 | |||
| Download | Non-Transparent Mode: Setup & Demonstration (white paper) | 1.0 | 04/09 | |||
| Errata | Download | Silicon Errata List | 1.5 | 01/09 | ||
| Interoperability | Download | Interoperability Report | 1.0 | 07/06 | ||
| Download | PLX Switches/Bridges RDK Interoperability | 1.0 | 02/06 | |||
| Part Numbers Listing | View HTML | Part Number, Listing and Compliance | -- | -- |
PEX 8508 Development Tools
| Document/Resources | Everyone Access | Requires Membership | Requires NDA | Description | Version | Date |
|---|---|---|---|---|---|---|
| Rapid Development Kit (RDK) | Download | RDK Hardware Reference Manual | 1.3 | 04/07 | ||
| Software Development Kit (SDK) | View HTML | Software Development Kit | -- | -- | ||
| BSDL | Download | Boundary Scan Description Language files | 1.1 | 02/07 | ||
| HSPICE Model | Download | HSPICE Model | -- | 03/07 | ||
| IBIS Models | Download | IBIS Model (low speed signals only) | 1.0 | 05/06 | ||
| OrCAD | Download | OrCAD library files for the PEX 8508 | -- | 05/07 | ||
| Download | OrCAD design files for the PEX 8508 RDK | -- | 03/07 | |||
| GERBER | Download | Layout Files for PEX 8508 RDK (Gerber) | -- | 01/06 | ||
| EEPROM | Download | EEPROM Images - Transparent Mode | 2.0 | 06/07 | ||
| Download | EEPROM Images - Non Transparent Mode | 2.0 | 06/07 |
PEX 8508 Applications
| Application | Description | Document | |
|---|---|---|---|
| Storage | NAS | PCI Express Switch - NAS Gateways Allows Host Redundancy/Failover | ExpressApps#17 (PDF) |
| Communications | Router/Switch | Control Planes in Telecom Applications - PCIe Connectivity & Fan-Out | ExpressApps#45 (PDF) |
| PC Peripheral & Consumer Electronics | Docking Station | Docking Stations - Port Fan-Out and Low Latency | ExpressApps#31 (PDF) |
| Embedded | Printer | Network Printer Engine Controller - Highly Flexible Port/Lane Configuration | ExpressApps#20 (PDF) |
| Medical | Image Acquisition Systems - High Bandwidth, Low Latency Port Fan-out | ExpressApps#37 (PDF) |
|
| Industrial | Embedded Platform Industrial Computing - Increases Fan-Out | ExpressApps#41 (PDF) |
|
| Data Acquisition Systems - High Bandwidth, Low Latency Port Fan-Out | ExpressApps#35 (PDF) |
||
| Security | Fan-out in Network Security Appliances - Five Configurable PCIe Ports | ExpressApps#22 (PDF) |
|