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MC141556 bảng dữ liệu(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC141556 bảng dữ liệu(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 18 page MOTOROLA SEMICONDUCTOR TECHICAL DATA REV 3.0 03/98 © Motorola, Inc. 1998 Order this document by MC141556 Product Preview USB Hub Controller CMOS This device is a self-contained USB Hub which complies with USB Hub spec 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 capabil- ity, it can hide the complexity from the user and be flexibly placed anywhere, such as monitor, keyboard, motherboard, hub-box, etc. The MC141556 con- sists of Serial Interface Engine(SIE), Hub Repeater, and Hub Controller, sup- porting one upstream port and up to five downstream ports. It also provides optional IIC(M_BUS) programmable Vendor ID and Product ID. Both Low speed mode (1.5 Mbps) and Full speed mode (12 Mbps) are sup- ported by automatically detecting which data line (D+ or D-) is pulled high whenever downstream devices are connected to the bus or at power-up. MC141556 can be self-powered or bus-powered. When self-powered, MC141556 is powered by external 5 volt supply and capable of delivering 500mA current to each downstream port. Power management for all down- stream ports supports power-switching and overcurrent detection with Individ- ual or Ganged control; a self-powered MC141556 supports Individual control only, but bus-powered MC141556 supports either Individual or Ganged control. When Ganged control, PWRSW1 and OVR1 are dedicated for power manage- ment. IIC(M_BUS) interface is provided to set up customized Vendor ID, Product ID, Power Mode, Power Management Mode, Number of Downstream Ports and Overcurrent Debounce Setting. Features Highlight Hub • Self-contained Hub Includes Serial Interface Engine (SIE), Hub Repeater and Hub Controller • Universal Serial Bus (USB) Hub Version 1.0 Compliant • One Upstream Port and Up To Five Downstream Ports • 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 • IIC (M_BUS) interface General Characteristics • 28 DIP Package • Crystal Input 24MHz • Internal 3.3Volt Regulator • Single 5Volt Power Supply • Low-power CMOS Technology MC141556 P SUFFIX PLASTIC PACKAGE CASE 655 ORDERING INFORMATION MC141556P Plastic Dip 28 1 VDD OSC1 OSC2 IICEN OVR1 VDD3CAP PWRSW4 DM4 PWRSW3 DM3 PWRSW1 DM2 VSS OVR2 OVR3 OVR4 PWRSW2 DP2 DM1 DP3 DP4 DM0 DP0 DP1 2 3 4 5 6 7 8 9 10 11 25 26 17 18 19 20 21 22 23 24 1 12 27 28 13 15 16 14 PWRSW5/SDA DP5/SEL1 DM5/SEL0 OVR5/GANG/SCL PIN ASSIGNMENT This document contains information on a new product. Specifications and information herein are subject to change without notice. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com RoHS-compliant and/or Pb- free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb- free counterparts. For further information, see http://www.freescale.com or contact your Freescale sales representative. For information on Freescale.s Environmental Products program, go to http://www.freescale.com/epp. |
Số phần tương tự - MC141556 |
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Mô tả tương tự - MC141556 |
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