Download AT43301 Datasheet PDF
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AT43301 Description

The AT43301 is a 5-port USB hub chip supporting one upstream and four downstream ports. The AT43301 connects to an upstream hub or host/root hub via Port0, while 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.

AT43301 Key Features

  • Full pliance with USB Spec Rev 1.1
  • Four Downstream Ports
  • Full-speed and Low-speed Data Transfers
  • Bus-powered Controller
  • Bus-powered or Self-powered Hub Operation
  • Port Overcurrent Monitoring
  • Port Power Switching
  • 5V Operation with On-chip 3.3V Regulator
  • 24-pin SOIC