USB7252C/KDX

Controllers Overview

The USB7252C/KDX is a 4-port USB 3.2 Gen 2 hub controller featuring native Type-C support with Power Delivery on downstream ports 1 and 2. It includes an internal Hub Feature Controller for USB-to-I2C/SPI/UART/I2S/GPIO bridging. The device supports SuperSpeed+ (10 Gbps), SuperSpeed (5 Gbps), Hi-Speed, Full-Speed, and Low-Speed operations. It operates within a supply voltage range of 1.09V to 1.21V for Vcore and 3V to 3.6V for VDD33. Operating temperatures span from -40°C to +85°C for industrial grade and 0°C to +70°C for commercial grade. The component is housed in a 100-pin VQFN package measuring 12mm x 12mm.

Controllers Feature Summary

• Native USB Type-C support with integrated CC logic and multiplexers on two downstream ports.
• Internal Hub Feature Controller enabling USB-to-GPIO, I2C, SPI, UART, and I2S bridging.
• Supports USB-IF Battery Charging revision 1.2 profiles including DCP, CDP, and SDP.
• Features FlexConnect for reversible port roles and PortSplit for independent USB 2.0 and USB 3.2 Gen 2 operation.

Controllers Applications

• Standalone USB Hubs
• Laptop Docks
• PC Motherboards
• Multi-function USB 3.2 Gen 2 Peripherals

Controllers Procurement Notes

Verify the specific suffix 'KDX' against the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with required configuration methods such as OTP or external SPI memory. Check for any applicable errata sheets that may impact design implementation.

Controllers Selection Notes

Select this component for designs requiring native Type-C connectivity with PD support on multiple downstream ports. Consider the internal Hub Feature Controller if system management via USB bridging is needed. Verify power requirements for Vcore and VDD33 rails match the target application's power budget.

Controllers Part Context

The USB7252C belongs to Microchip's USB Smart Hub family, designed for OEM configurable embedded applications. It integrates a dedicated hub feature controller alongside standard hub logic to decouple high-speed data transfers from slower USB 2.0 traffic bottlenecks.

Controllers Replacement Considerations

USB7252CT/KDX

Controllers FAQ

Does the USB7252C require an external multiplexer for Type-C ports?

No, the USB7252C includes internal USB 3.2 Gen 2 multiplexers on its Type-C enabled downstream ports, eliminating the need for external multiplexers.

What charging standards are supported by the downstream ports?

The device supports USB-IF Battery Charging revision 1.2, including Dedicated Charging Port (DCP), Charging Downstream Port (CDP), and Standard Downstream Port (SDP) profiles.

Can the upstream and downstream port roles be reversed?

Yes, the FlexConnect feature allows one of the downstream ports to be reconfigured to become the upstream port upon command.