■ PEX8749 General Features
- 48-lane, 18-port PCIe Gen 3 switch
- Integrated 8.0 GT/s SerDes
- 27 x 27mm, 676-pin FCBGA package
- Typical Power: 7.3 Watts

■ PEX8749 Key Features
- Standards Compliant
- PCI Express Base Specification, r3.0 (compatible w/ PCIe r1.0a/1.1 & 2.0)
- PCI Power Management Spec, r1.2
- Microsoft Vista Compliant
- Supports Access Control Services
- Dynamic link-width control
- Dynamic SerDes speed control

The PEX8749 architecture supports packet cut-thru with a maximum latency of 126ns (x16 to x16). This, combined with large packet memory,
flexible common buffer/FC credit pool and non-blocking internal switch architecture, provides full line rate on all ports for performance-hungry
applications such as servers and switch fabrics. The low latency enables applications to achieve high throughput and performance. In addition to low
latency, the device supports a packet payload size of up to 2048 bytes, enabling the user to achieve even higher throughput.