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USB3300 bảng dữ liệu(PDF) 10 Page - Microchip Technology

tên linh kiện USB3300
Giải thích chi tiết về linh kiện  Hi-Speed USB Host, Device or OTG PHY
PDF  53 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3300 bảng dữ liệu(HTML) 10 Page - Microchip Technology

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USB3300
DS00001783B-page 10
 2014-2015 Microchip Technology Inc.
31
REG_EN
I/O,
CMOS,
Pull-low
N/A
On-Chip 1.8V regulator enable. Connect to ground to
disable both of the on chip (VDDA1.8 and VDD1.8)
regulators. When regulators are disabled:
• External 1.8V must be supplied to VDDA1.8 and
VDD1.8 pins. When the regulators are disabled,
VDDA1.8 may be connected to VDD1.8 and a
bypass capacitor (0.1uF recommended) should be
connected to each pin.
• The voltage at VDD3.3 must be at least 2.64V (0.8
* 3.3V) before voltage is applied to VDDA1.8 and
VDD1.8.
32
RBIAS
Analog,
CMOS
N/A
External 12KΩ +/- 1% bias resistor to ground.
GND FLAG
Ground
N/A
Ground. The flag must be connected to the ground
plane with a via array under the exposed flag. This is
the main ground for the IC.
TABLE 3-1:
USB3300 PIN DEFINITIONS 32-PIN QFN PACKAGE (CONTINUED)
Pin
Name
Direction,
Type
Active
Level
Description



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