lan9420 Standard Microsystems Corp., lan9420 Datasheet - Page 20

• Manufacturer Part Number: lan9420
• Description: Lan9420/lan9420i Single-chip Ethernet Controller With Hp Auto-mdix Support And Pci Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.1 (03-31-08)
NUM
PINS
NUM
PINS
15
21
17
2
1
1
1
3
Master Bias
No Connect
+1.8V Core
+1.8V PLL
+1.8V TX
+3.3V I/O
Ground
Analog
Supply
Supply
Supply
Supply
NAME
NAME
Power
Power
Power
Power
Power
Power
+3.3V
+3.3V
VDD18CORE
VDD33BIAS
VDD18PLL
VDD18TX
SYMBOL
VDD33IO
SYMBOL
VDD33A
VSS
NC
Table 2.6 Power and Ground Pins
Table 2.7 No-Connect Pins
BUFFER
BUFFER
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
TYPE
TYPE
DATASHEET
P
P
P
P
P
P
P
-
20
+3.3V Analog Power Supply
Refer to the LAN9420/LAN9420i application note for
connection information.
+1.8V PLL Power Supply: This pin must be connected
to VDD18CORE for proper operation.
Refer to the LAN9420/LAN9420i application note for
additional connection information.
+1.8V Transmitter Power Supply: This pin must be
connected to VDD18CORE for proper operation.
Refer to the LAN9420/LAN9420i application note for
additional connection information.
+3.3V Master Bias Power Supply
Refer to the LAN9420/LAN9420i application note for
additional connection information.
+3.3V Power Supply for I/O Pins and Internal
Regulator
Refer to the LAN9420/LAN9420i application note for
additional connection information.
Common Ground for I/O Pins, Core, and Analog
Circuitry
Digital Core +1.8V Power Supply Output from
Internal Regulator
Refer to the LAN9420/LAN9420i application note for
additional connection information.
No Connect: These pins must be left floating for
normal device operation.
DESCRIPTION
DESCRIPTION
SMSC LAN9420/LAN9420i
Datasheet