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USB2640 датащи(PDF) 17 Page - Microchip Technology

номер детали USB2640
подробное описание детали  Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
PDF  60 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2640 датащи(HTML) 17 Page - Microchip Technology

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 2015-2021 Microchip Technology Inc.
DS00001947C-page 17
USB2640/USB2641
nRESET
38
IS
RESET Input
The system uses this active low signal to reset the chip. The active low
pulse should be at least 1
s wide.
TEST
40
I
TEST Input
Tie this pin to ground for normal operation.
NC
22
26
27
28
No Connects
No connect pins only apply to the USB2641. No trace or signal should
be routed or attached to these pins.
DIGITAL / POWER / GROUND
CRFILT
15
VDD Core Regulator Filter Capacitor
This pin must have a 1.0
F (or greater)
20% (ESR <0.1 ) capacitor
to VSS.
VDD33
5
12
16
25
34
41
48
3.3 V Power and Voltage Regulator Inputs
Please refer to Section 9.0, "DC Parameters," on page 47 for more
information.
Pins 16 and 48 each require an external bypass capacitor of 4.7
F
minimum.
PLLFILT
46
PLL Regulator Filter Capacitor
This pin must have a 1.0
F (or greater)
20% (ESR <0.1 ) capacitor
to VSS.
VSS
ePad
The ground pad / ePad is the only VSS for the device and must be tied
to ground with multiple vias.
TABLE 6-1:
USB2640/USB2641 PIN DESCRIPTIONS (CONTINUED)
Symbol
48-Pin
QFN
Buffer Type
(Table 6-2)
Description



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