MC141555中文资料摩托罗拉数据手册PDF规格书

USB Hub Controller CMOS

This device is a self-contained USB Hub which complies with USB Hub Specification Rev 1.0. This device is used to expand the USB ports of your PC system while needed. Because of its self-contained and bus-powered/self powered capability, it can hide the complexity from the user and be flexibly placed anywhere, such as monitor, keyboard, motherboard, Hub-box, etc. The MC141555 consists of Serial Interface Engine (SIE), Hub Repeater, and Hub Controller, supporting one upstream port and up to five downstream ports.

Features Highlight

Hub

• Self-contained Hub Includes Serial Interface Engine (SIE), Hub Repeater and Hub Controller

• Universal Serial Bus (USB) Version 1.0 Compliant

• Self-powered or Bus-powered

• Individual/Ganged Downstream Port Power Switching

• Individual/Ganged Downstream Port Overcurrent Detection

• All Downstream Ports Support Full Speed and Low Speed Operation

• Suspend and Resume Operations

• Host Reset Operation

General Characteristics

• 28 DIP Package

• Crystal Input 24MHz

• Internal 3.3Volt Regulator

• Single 5Volt Power Supply

• Low-power CMOS Technology