ISP1123D Overview
The ISP1123 is a pound Universal Serial Bus (USB) hub device which plies with USB Specification Rev. It integrates a Serial Interface Engine (SIE), hub repeater, hub controller, USB data transceivers and a 3.3 V voltage regulator. It has a configurable number of downstream ports, ranging from 2 to 5, with one port dedicated to an embedded or non-removable function.