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ISP1122BD

NXP
Part Number ISP1122BD
Manufacturer NXP
Description Universal Serial Bus stand-alone hub
Published Apr 5, 2005
Detailed Description ISP1122 Universal Serial Bus stand-alone hub Rev. 03 — 29 March 2000 Product specification 1. General description The IS...
Datasheet PDF File ISP1122BD PDF File

ISP1122BD
ISP1122BD

Overview
ISP1122 Universal Serial Bus stand-alone hub Rev.
03 — 29 March 2000 Product specification 1.
General description The ISP1122 is a stand-alone Universal Serial Bus (USB) hub device which complies with USB Specification Rev.
1.
1.
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.
The ISP1122 can be bus-powered, self-powered or hybrid-powered.
When it is hybrid-powered the hub functions are powered by the upstream power supply (VBUS), but the downstream ports are powered by an external 5 Volt supply.
The low power consumption in ‘suspend’ mode allows easy design of equipment that is compliant with the ACPI™, OnNow™ and USB power management requirements.
The ISP1122 has built-in overcurrent sense inputs, supporting individual and global overcurrent protection for downstream ports.
All ports (including the hub) have GoodLink™ indicator outputs ...


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