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STPC12 bảng dữ liệu(PDF) 88 Page - STMicroelectronics

tên linh kiện STPC12
Giải thích chi tiết về linh kiện  X86 Core PC Compatible System-on-Chip for Terminals
PDF  111 Pages
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STPC12 bảng dữ liệu(HTML) 88 Page - STMicroelectronics

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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 Ohm1
R = 15 Ohm1
R = 15 Ohm
1
R = 15 Ohm1
USBDF02W5
(Note1)
3
1
2
4
5
USBDF02W5
(Note1)
3
1
2
4
5



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