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LAN9303 Scheda tecnica(PDF) 39 Page - SMSC Corporation

Il numero della parte LAN9303
Spiegazioni elettronici  Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
PDF  366 Pages
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Produttore elettronici  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9303 Scheda tecnica(HTML) 39 Page - SMSC Corporation

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Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
SMSC LAN9303/LAN9303i
39
Revision 1.3 (08-27-09)
DATASHEET
Note 3.7
Please refer to the LAN9303/LAN9303i Reference Schematic and LANCheck Schematic
Checklist on the SMSC website for additional connection information.
Note 3.8
Please refer to the LAN9303/LAN9303i Reference Schematic and LANCheck Schematic
Checklist on the SMSC website for additional connection information.
Table 3.8 PLL Pins
NUM
PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
1
PLL +1.8V
Power Supply
VDD18PLL
P
This pin must be connected to VDD18CORE for
proper operation.
See Note 3.7.
1
Crystal Input
XI
ICLK
External 25MHz crystal input. This signal can also
be driven by a single-ended clock oscillator. When
this method is used, XO should be left
unconnected.
1
Crystal Output
XO
OCLK
External 25MHz crystal output.
Table 3.9 Core and I/O Power and Ground Pins
NUM
PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
5
+3.3V I/O
Power
VDD33IO
P
+3.3V Power Supply for I/O Pins and Internal
Regulator.
See Note 3.8.
2
Digital Core
+1.8V Power
Supply Output
VDD18CORE
P
+1.8V power from the internal core voltage
regulator. All VDD18CORE pins must be tied
together for proper operation.
See Note 3.8.
1
PAD
Common
Ground
VSS
P
Ground



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