STPCI2 STMicroelectronics, STPCI2 Datasheet - Page 88

• Manufacturer Part Number: STPCI2
• Description: STPC ATLAS DATASHEET - X86 CORE PC COMPATIBLE SYS
• Manufacturer: STMicroelectronics

DESIGN GUIDELINES
6.3.10. USB INTERFACE
The STPC integrates a USB host interface with a
2-port Hub. The only external device needed are
88/111
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.
USBDMNS[0]
USBDMNS[1]
STPC
USBDPLS[0]
USBDPLS[1]
POWERON
OC
Figure 6-16. Typical USB implementation
5V
USBDF02W5
5
4
USBDF02W5
Issue 1.0 - July 24, 2002
R = 15 Ohm
3
1
R = 15 Ohm
TPS2014
3
1
R = 15 Ohm
R = 15 Ohm
2,3
5V
1
2
2
6,7,8
(Note1)
the ESD protection circuits USBDF01W5 and a
USB
describes a typical implementation using these
devices.
(Note1)
1
1
4
5
1
1
4
5
USBVCC
power supply controller.
100nF 2x 47uF
Connector
Power Decoupling
1
8
2
3
4
5
6
7
TPS2014
10
11
12
9
5V
100nF
GND
Figure
6-16