SMSC LAN9512 - Manual (Page 14)

USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
Revision 1.0 (04-20-09) 14 SMSC LAN9512
DATASHEET
Note 2.1 Exposed pad on package bottom ( Figure 2.1 ).
Table 2.6 I/O Power Pins, Core Power Pins, and Ground Pad
NUM
PINS NAME SYMBOL
BUFFER
TYPE DESCRIPTION
5
+3.3V I/O
Power
VDD33IO P +3.3V Power Supply for I/O Pins.
Refer to the LAN9512 reference schematics for
connection information.
2
Digital Core
+1.8V Power
Supply Output
VDD18CORE P +1.8 V power from the internal core voltage
regulator. All VDD18CORE pins must be tied
together for proper operation.
Refer to the LAN9512 reference schematics for
connection information.
1
Note
2.1
Ground VSS P Ground
Table 2.7 No-Connect Pins
NUM
PINS NAME SYMBOL
BUFFER
TYPE DESCRIPTION
6
No Connect NC - These pins must be left floating for normal device
operation