lan9420 Standard Microsystems Corp., lan9420 Datasheet - Page 22

• 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)
2.2
BUFFER TYPE
OCLK
OD12
OPCI
ICLK
IPCI
O12
AIO
O8
PU
PD
IS
AI
P
Buffer Types
Schmitt-triggered Input
Output with 8mA sink and 8mA source current
Output with 12mA sink and 12mA source current
Open-drain output with 12mA sink current
PCI compliant Input
PCI compliant Output
50uA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull-ups
are always enabled.
Note:
50uA (typical) internal pull-down. Unless otherwise noted in the pin description, internal pull-
downs are always enabled.
Note:
Analog Input
Analog bi-directional
Crystal oscillator input
Crystal oscillator output
Power and Ground pin
Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on
internal resistors to drive signals external to LAN9420/LAN9420i. When connected
to a load that must be pulled high, an external resistor must be added.
Internal pull-down resistors prevent unconnected inputs from floating. Do not rely
on internal resistors to drive signals external to LAN9420/LAN9420i. When
connected to a load that must be pulled low, an external resistor must be added.
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
DATASHEET
22
DESCRIPTION
SMSC LAN9420/LAN9420i
Datasheet