LAN9312-NZW Standard Microsystems (SMSC), LAN9312-NZW Datasheet - Page 35
LAN9312-NZW
Manufacturer Part Number
LAN9312-NZW
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9312-NZW.pdf
(458 pages)
Specifications of LAN9312-NZW
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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
97,112,113,
7,13,21,27,
3,14,40,65,
87,93,100
74,88,104
33,39,46,
54,64,66,
72,73,81,
18,48,80,
76,94,95,
102,103,
Note 3.8
1,2,56,
PIN
107
105
106
PIN
128
PIN
109
Note 3.8
Power Supply
+1.8V Power
Crystal Input
Digital Core
No Connect
PLL +1.8V
+3.3V I/O
Common
Ground
Crystal
Supply
NAME
Output
NAME
Output
NAME
Power
Plus external pad for 128-XVTQFP package only
Table 3.9 Core and I/O Power and Ground Pins
VDD18CORE
VDD18PLL
SYMBOL
SYMBOL
VDD33IO
SYMBOL
VSS
XO
NC
XI
Table 3.10 No-Connect Pins
Table 3.8 PLL Pins
DATASHEET
BUFFER
BUFFER
BUFFER
OCLK
TYPE
TYPE
TYPE
ICLK
P
P
P
P
-
35
PLL +1.8V Power Supply: This pin must be
connected to VDD18CORE for proper operation.
Refer to the LAN9312 application note for
additional connection information.
Crystal Input: 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.
Crystal Output: External 25MHz crystal output.
+3.3V Power Supply for I/O Pins and Internal
Regulator
Refer to the LAN9312 application note for
additional connection information.
Digital Core +1.8V Power Supply Output: +1.8V
power from the internal core voltage regulator. All
VDD18CORE pins must be tied together for proper
operation.
Refer to the LAN9312 application note for
additional connection information.
Common Ground
No Connect: These pins must be left floating for
normal device operation.
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 1.7 (06-29-10)
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