AT43301-SU

The AT43301-SU  is a 5-port USB hub chip supporting one upstream and four downstream ports. The AT43301-SU combines with an upstream hub or host/root hub via Port0, when 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-SU is designed for very low-cost bus-powered or self-powered hub applications
and is can be used in a 24-lead SOIC and a 32-lead LQFP packages.

Features of the AT43301-SU are:(1)full compliance with USB spec rev 1.1;(2) four downstream ports;(3)full-speed and low-speed data transfers;(4)bus-powered controller;(5)bus-powered or self-powered hub operati on;(6)port overcurrent monitoring;(7)port power switching;(8)5V operation with on-chip 3.3V regulator;(9)24-lead SOIC and 32-lead LQFP

The absolute maximum ratings and DC characteristics(TA = 0°C to 85°C, VCC = 4.4V to 5.25V) of the AT43301-SU can be summarized as:(1):5V power supply is 5.5 V max;(2):DC input voltage is-0.3V min and VCEXT + 0.3 V max;(3):DC output voltage is-0.3V min and VCEXT + 0.3V max;(4):operating temperature ranges from-40°C to +125 °C;(5):storage temperature ranges from-65°C to150°C.DC characteristics:(1):5V power supply is 4.4V min, 5.25 V max;(2):5V supply current is 24 mA max;(3):suspended device current is 150 A.