Datasheet4U Logo Datasheet4U.com

AT43301 - Low-cost USB Hub Controller

General 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.

Key Features

  • Full Compliance 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AT431 low-Voltage Adjustable Precision Shunt Regulator Aimtron Technology
AT431 Adjustable Precision Shunt Regulators IAT
AT432 Low Voltage Adjustable Shunt Regulator IAT
AT4 Acorn Triode Mullard
AT40206 PC/AT Integrated Peripheral Controller ATMEL

Other Datasheets by Atmel (now Microchip Technology)

Part Number Description
AT43310 USB Hub
AT43311 USB Hub
AT43312 Self- and Bus- Powered USB Hub Controller
AT43312A Self- and Bus-Bus-powered USB Hub Controller
AT43320 Full-speed USB Hub/Function Microcontroller

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 1.1 • 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 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. The AT43301 is designed for very low-cost bus-powered or self-powered hub applications and comes in a 24-pin SOIC package.