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AT43312 - Self- and Bus- Powered USB Hub Controller

General Description

The AT43312 is a 5 port USB hub chip supporting one upstream and four downstream ports.

The AT43312 connects to an upstream hub or Host/Root Hub via Port0 and the other ports connect to external downstream USB devices.

Key Features

  • Full compliance with USB spec Rev 1.0 Four downstream ports Full speed and low speed data transfers Self-Powered or Bus-Powered modes of operation Per port overcurrent monitoring Individual port power switch control USB connection status indicators.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Features • • • • • • • Full compliance with USB spec Rev 1.0 Four downstream ports Full speed and low speed data transfers Self-Powered or Bus-Powered modes of operation Per port overcurrent monitoring Individual port power switch control USB connection status indicators Description The AT43312 is a 5 port USB hub chip supporting one upstream and four downstream ports. The AT43312 connects to an upstream hub or Host/Root Hub via Port0 and the other ports connect to external downstream USB devices. The hub re-transmits the USB differential signal between Port0 and Ports[1:4] in both directions. A USB hub with the AT43312 can operate as a bus-powered or self-powered through chip’s power mode configuration pin.