High-speed PCIe passive switches handle next-generation data rates

Sunnyvale, Calif.—Maxim Integrated Products has introduced the MAX4889B/MAX4889C high-speed, 1:2 or 2:1 PCI Express (PCIe) passive switches.

These quad double-pole/double-throw (DPDT) switches are intended for switching four half lanes of PCIe data between two destinations. To maximize performance, four devices can be used to convert 16 PCIe lanes into two sets of 8 lanes for use with either SLI or CrossFire graphics cards. Maintaining a high level of signal integrity, these switches feature very-low on-capacitance and superior return loss.

The MAX4889B/MAX4889C are designed for PCIe 2.0 data switching: they offer low power consumption, support data rates greater than 5.0-Gbit/s, and feature a flow-through pin configuration for optimized PCB layout. The MAX4889C, due to its internal biasing resistors, also supports SAS I, SAS II, and SAS 6.0-Gbit/s data rates. The MAX4889B/MAX4889C are well suited for extreme graphics applications in desktop and notebook PCs, as well as servers.

The MAX4889B/MAX4889C operate from a single 3.3V supply, and are fully specified over the -40°C to +85°C extended temperature range.

Pricing: Start at $1.50 (1000-up, FOB USA).
Availability: In an industry-standard, 3.5mm x 9mm, 42-pin TQFN package.
Datasheet: Click here.

Maxim Integrated Products,

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