參數(shù)資料
型號: STPC12GEYC
廠商: 意法半導(dǎo)體
英文描述: X86 Core PC Compatible System-on-Chip for Terminals
中文描述: x86內(nèi)核PC兼容系統(tǒng)上的終端芯片
文件頁數(shù): 88/111頁
文件大?。?/td> 1896K
代理商: STPC12GEYC
DESIGN GUIDELINES
88/111
Issue 1.0 - July 24, 2002
6.3.10. USB INTERFACE
The STPC integrates a USB host interface with a
2-port Hub. The only external device needed are
the ESD protection circuits USBDF01W5 and a
USB power supply controller.
Figure 6-16
describes a typical implementation using these
devices.
Figure 6-16. Typical USB implementation
Note 1; The ESD protection will be adequate for most applications. In some instances, problems may occur if the devices on the
USB chain do not have enough power to drive the signals adequately. We therefore recommend that you replace the part with de-
screte components and reduce the value of the capacitor.
POWERON
STPC
TPS2014
OC
USBDMNS[0]
USBDPLS[0]
USBDMNS[1]
USBDPLS[1]
5V
Connector
GND
9
10
11
12
1
2
6
7
3
4
8
5
100nF
2x 47uF
5
4
6,7,8
5V
2,3
1
USBVCC
100nF
5V
TPS2014
Power Decoupling
R = 15 Ohm
1
3
R = 15 Ohm
1
R = 15 Ohm
1
3
R = 15 Ohm
1
USBDF02W5
(Note1)
1
4
5
USBDF02W5
(Note1)
1
4
5
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