SMSC LAN9420, LAN9420i NUM, NUM, PINS, NAME, TYPE, PINS, NAME, TYPE, BUFFER, SYMBOL, BUFFER, SYMBOL, Regulator, Circuitry, DESCRIPTION, DESCRIPTION, No Connect:, Internal Regulator

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Table 2.6 Power and Ground Pins

NUM				BUFFER
PINS	NAME	SYMBOL		TYPE	DESCRIPTION
	+3.3V	VDD33A		P	+3.3V Analog Power Supply
2	Analog				Refer to the LAN9420/LAN9420i application note for
	Power
	Supply				connection information.
	+1.8V PLL	VDD18PLL		P	+1.8V PLL Power Supply: This pin must be connected
1	Power				to VDD18CORE for proper operation.
	Supply				Refer to the LAN9420/LAN9420i application note for
					additional connection information.
	+1.8V TX	VDD18TX		P	+1.8V Transmitter Power Supply: This pin must be
1	Power				connected to VDD18CORE for proper operation.
	Supply				Refer to the LAN9420/LAN9420i application note for
					additional connection information.
	+3.3V	VDD33BIAS		P	+3.3V Master Bias Power Supply
1	Master Bias				Refer to the LAN9420/LAN9420i application note for
	Power
	Supply				additional connection information.
	+3.3V I/O	VDD33IO		P	+3.3V Power Supply for I/O Pins and Internal
15	Power				Regulator
					Refer to the LAN9420/LAN9420i application note for
					additional connection information.
21	Ground	VSS		P	Common Ground for I/O Pins, Core, and Analog
					Circuitry
	+1.8V Core	VDD18CORE		P	Digital Core +1.8V Power Supply Output from
3	Power				Internal Regulator
					Refer to the LAN9420/LAN9420i application note for
					additional connection information.
			Table 2.7 No-Connect Pins
NUM				BUFFER
PINS	NAME	SYMBOL		TYPE	DESCRIPTION
17	No Connect	NC		-	No Connect: These pins must be left floating for
					normal device operation.

Revision 1.22 (09-25-08)	20	SMSC LAN9420/LAN9420i
	DATASHEET