The OP8666 supports a USB 2.0 full speed (FS) On-the-Go (OTG) communications via a USB-A connector.
The microcontroller has an internal USB 2.0 Full Speed PeHY for communication over the USB protocol.

The OP8666 can be configured as:

• USB Host: To connect to other devices, such as USB Mass Storage devices for data storage.
• USB Device: To connect to a host system, where the OP8666 is a mass storage, HID or other such device.

Connections with Microcontroller