lan9500 Standard Microsystems Corp., lan9500 Datasheet - Page 20

• Manufacturer Part Number: lan9500
• Description: Lan9500/lan9500i Hi-speed Usb 2.0 To 10/100 Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.4 (07-07-08)
2.1
BUFFER TYPE
IS_5V
OCLK
OD12
ICLK
OD8
O12
AIO
PU
PD
O8
IS
AI
P
Buffer Types
Schmitt-triggered Input
5V Tolerant Schmitt-triggered Input
Output with 8mA sink and 8mA source
Open-drain output with 8mA sink
Output with 12mA sink and 12mA source
Open-drain output with 12mA sink
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 pin
Crystal oscillator output pin
Power pin
Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on
internal resistors to drive signals external to the LAN9500/LAN9500i. 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 the LAN9500/LAN9500i. When
connected to a load that must be pulled low, an external resistor must be added.
Table 2.10 Buffer Types
DATASHEET
20
DESCRIPTION
Hi-Speed USB 2.0 to 10/100 Ethernet Controller
SMSC LAN9500/LAN9500i
Datasheet