89HPES24N3A

www.DataSheet4U.com 24-Lane 3-Port PCI Express® Switch 89HPES24N3A Product Brief Device Overview The 89HPES24N3A is a member of the IDT PRECISE™ family of PCI Express® switching solutions offering the next-generation I/O interconnect standard. The PES24N3A is a 24-lane, 3-port peripheral chip that performs PCI Express Packet switching with a feature set optimized for high performance applications such as servers, storage, and communications/networking. It provides high-performance I/O connectivity and switching functions between a PCI Express upstream port and two downstream ports or peer-to-peer switching between downstream ports. The 89HPES24N3A offers an enhanced architecture and feature set in a package that is pin-compatible with the first generation 89HPES24N3 24-lane, 3-port PCIe switch. Features ◆ High Performance PCI Express Switch – Twenty-four 2.5 Gbps PCI Express lanes – Three switch ports – Upstream port configurable up to x8 – Downstream ports configurable up to x8 – Low-latency cut-through switch architecture – Support for Max Payload Size up to 2048 bytes – One virtual channel – Eight traffic classes – PCI Express Base Specification Revision 1.1 compliant Flexible Architecture with Numerous Configuration Options – Automatic per port link width negotiation to x8, x4, x2 or x1 – Automatic lane reversal on all ports – Automatic polarity inversion on all lanes – Ability to load device configuration from serial EEPROM ◆ Legacy Support – PCI compatible INTx e...