USB PRODUCTS
AT43301 LOW COST
USB HUB CONTROLLER
• Bus or Self Powered USB Hub
Operation
• Global Over-Current Sensing • Ganged Port Power Switching
• Bus Powered Controller in the
Self Powered Mode
• 6 MHz Oscillator with PLL • On Chip 3.
3V Voltage
Regulator • 24-Pin SOIC
• One Upstream Port Plus Four
Downstream Ports
• Integrated Hub Protocol Controller
LFT OSC1 OSC2
OSC & PLL
DP4 DM4 PORT4
DP3 DM3 DP0 DM0 SELF/BUS TEST SERIAL INTERFACE ENGINE
PORT3 DP2 DM2
LPSTAT CEXT1 CEXT2 VCC VSS VSS
HUB REPEATER
PORT2
DP1 DM1
HUB CONTROLLER
PORT1
PWR OVC STAT
The Atmel AT43301 USB Hub Controller is designed for use in very, low cost self powered or bus powered USB hubs.
Applicatio...