CBTU0808EE/G,518

Specialized Overview

The CBTU0808EE/G,518 is a dual-lane PCI Express port multiplexer designed for reliable path switching of PCIe signals. It comprises two lanes, each with transmit and receive channels featuring four ports (two source, two destination). Controlled by CMOS inputs CTRL0 and CTRL1, it supports three configurations: dual through, single cross, or disconnect. Operating on a single 1.8 V supply, it ensures high bandwidth exceeding 1 GHz with low off-feedthrough and crosstalk below -35 dB at 1.25 GHz. The device offers 8 kV HBM ESD resilience and is housed in a 48-ball TFBGA package.

Specialized Feature Summary

• Dual-lane PCI Express port multiplexer supporting high-bandwidth signaling
• Configurable switch paths including dual through, single cross, and disconnect modes
• Low signal interference with minimal off-feedthrough and channel crosstalk
• Robust electrostatic discharge protection rated at 8 kV Human Body Model

Specialized Applications

• High-performance computing systems requiring port expansion
• Docking stations and port switching interfaces
• PCIe signal routing in embedded platforms

Specialized Procurement Notes

Verify the specific ordering suffix EE/G to confirm lead-free solder ball composition and green packaging status. Confirm the component's production status, as datasheet revisions may indicate lifecycle changes. Ensure compatibility with the required 1.8 V supply voltage and CMOS control logic levels before procurement.

Specialized Selection Notes

Select this component when designing systems requiring physical switching between multiple PCIe sources and destinations. Ensure the design accommodates the 48-ball TFBGA package footprint and thermal requirements. Verify that the application environment stays within the recommended operating temperature range of 0°C to +85°C.

Specialized Part Context

This part belongs to NXP's CBTU series of high-speed analog switches. It is specifically engineered for PCI Express applications, providing impedance matching and signal integrity for differential signaling environments. The device integrates internal control logic to manage switch positions based on external digital inputs.

Specialized Replacement Considerations

Consult official NXP documentation for form-fit-function compatible alternatives. No specific substitute part numbers are confirmed in the provided source material.