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USB2532 データシート(PDF) 20 Page - Microchip Technology

部品番号 USB2532
部品情報  USB 2.0 Hi-Speed 2-Port Hub Controller
PDF  50 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2532 データシート(HTML) 20 Page - Microchip Technology

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USB 2.0 Hi-Speed 2-Port Hub Controller
Datasheet
DS00001701A-page 20
 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 USB2532.
Figure 4.1 Power Connections
3.3V Regulator
(Bypass)
(IN)
(OUT)
VDDA33
+3.3V
Supply
1.2V
Core Logic
3.3V I/O
USB2532
Single Supply Application
1.2V Regulator
(IN)
(OUT)
3.3V Internal
Logic
VDDA33
VDDA33
VDDCR12
1.0uF
VSS
VDD33
(2x)



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