USB2422 Description
The Microchip USB2422 hub is a low-power, single transaction translator, hub controller IC with two downstream ports for embedded USB solutions. The hub controller can attach to an upstream port as a Hi-Speed and Full-Speed hub or as a Full-Speed only hub. The hub supports Low-Speed, Full-Speed, and Hi-Speed (when configured as a Hi-Speed hub) downstream devices on the enabled downstream ports.
USB2422 Key Features
- Supports the USB Battery Charging Specification, Revision 1.1
- Fully integrated USB termination and pull-up/pulldown resistors
- Supports a single external 3.3 V supply source; internal regulators provide 1.2 V internal core voltage
- On-chip driver for 24 MHz crystal resonator or external 24 MHz clock input
- ESD protection up to 6 kV on all USB pins
- Supports self-powered operation
- The hub contains a built-in default configuration
- Downstream ports as non-removable ports
- Downstream port power control and over-current detection on an individual or ganged basis
- Supports pound devices on a port-by-port basis