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USB2534 датащи(PDF) 22 Page - Microchip Technology

номер детали USB2534
подробное описание детали  USB 2.0 Hi-Speed 4-Port Hub Controller
PDF  52 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2534 датащи(HTML) 22 Page - Microchip Technology

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USB 2.0 Hi-Speed 4-Port Hub Controller
Datasheet
DS00001713A-page 22
 2014 Microchip Technology Inc.
Chapter 4 Power Connections
4.1
Integrated Power Regulators
The integrated 3.3V and 1.2V power regulators allow the device to be supplied via a single 3.3V
external power supply.
The regulators are controlled by RESET_N. When RESET_N is brought high, the 3.3V regulator will
turn on. When RESET_N is brought low the 3.3V regulator will turn off.
4.2
Power Connection Diagrams
Figure 4.1 illustrates the power connections for the USB2534.
Figure 4.1 Power Connections
3.3V Regulator
(Bypass)
(IN)
(OUT)
VDDA33
+3.3V
Supply
1.2V
Core Logic
3.3V I/O
USB2534
Single Supply Application
1.2V Regulator
(IN)
(OUT)
3.3V Internal
Logic
VDDA33
VDDA33
VDDCR12
1.0uF
VSS
VDD33
(2x)



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