TUSB7340IRKMR

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The TUSB7340IRKMR is a USB 3.0 based integrated SuperSpeed PHY, Hub, and Link Layer device designed to provide a complete solution for USB 3.0 applications. The device features eight PHYs, an integrated USB 3.0 Link Layer controller, and a built-in USB 3.0 hub controller with integrated transceiver. The TUSB7340IRKMR is designed to comply with the Universal Serial Bus 3.0 Specification, Revision 1.0 and to enable SuperSpeed operation up to 5 Gbps.

Application Field

The TUSB7340IRKMR is a device that is ideally suited for consumer applications, including consumer storage and other consumer electronics. The device is designed to provide USB 3.0 SuperSpeed connectivity, enabling faster data transfer speeds. The device supports up to eight full duplex USB 3.0 ports, providing a complete solution for consumer devices. The device is also suitable for applications such as peripherals, portable devices, and mobile phones.

Working Principle

The TUSB7340IRKMR features eight PHYs and a built-in 8-port USB 3.0 hub controller with integrated transceiver. The device supports data transfer speeds up to 5 Gbps. The device is designed to automatically switch between data speeds based on the speed of the connected devices. The device also supports hub-to-device and device-to-hub communication. The device includes power management functions and supports low-power/low-bandwidth modes such as selective suspend and suspend-on-disconnect.

The device also includes an integrated USB 3.0 Link Layer controller that provides the interface between the PHYs and the hub controller. The controller is responsible for carrying out link training and compliance testing, as well as providing the logic required to set up and maintain a link between two devices. This includes tasks such as link initialization, power saving, link speed control, and system resilience to link errors.

The TUSB7340IRKMR also features built-in firmware designed to simplify system integration. The firmware supports standard USB 3.0 protocols such as SuperSpeed, Bulk-Only-Transfer, and Extended Bulk Only Transfer, as well as advanced protocol features such as LPM (Link Power Management) and HS (High Speed). The device also supports legacy USB protocols such as full-speed and low-speed. The firmware is designed to support USB Mixer functionality, allowing multiple peripherals to be connected using the same port.

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