LAN9311-NU Standard Microsystems (SMSC), LAN9311-NU Datasheet - Page 35
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LAN9311-NU
Manufacturer Part Number
LAN9311-NU
Description
TWO PORT 10/100 MANAGED ETHERNET SWITCH
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9311-NU.pdf
(460 pages)
Specifications of LAN9311-NU
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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
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,
15-17,19,
20,22-24,
76,94,95,
102,103,
Note 3.8
1,2, 4-6,
8-12,
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 LAN9311/LAN9311i 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 LAN9311/LAN9311i 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 LAN9311/LAN9311i 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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