USB
P
RODUCTS
AT43301
L
OW
C
OST
USB H
UB
C
ONTROLLER
•
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