®
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology
Datasheet
2.2
Buffer Types
Table 2.9 Buffer Types
DESCRIPTION
BUFFER TYPE
IS
O12
VIS
Schmitt-triggered input
Output with 12mA sink and 12mA source
Variable voltage Schmitt-triggered input
VO8
VOD8
PU
Variable voltage output with 8mA sink and 8mA source
Variable voltage open-drain output with 8mA sink
50uA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull-
ups are always enabled.
Note:
Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on
internal resistors to drive signals external to the device. When connected to a load
that must be pulled high, an external resistor must be added.
PD
50uA (typical) internal pull-down. Unless otherwise noted in the pin description, internal
pull-downs are always enabled.
Note:
Internal pull-down resistors prevent unconnected inputs from floating. Do not rely
on internal resistors to drive signals external to the device. When connected to a
load that must be pulled low, an external resistor must be added.
AI
AIO
ICLK
OCLK
P
Analog input
Analog bi-directional
Crystal oscillator input pin
Crystal oscillator output pin
Power pin
Note: The digital signals are not 5V tolerant. Refer to Section 5.1, "Absolute Maximum Ratings*," on
page 66 for additional buffer information.
Note 2.3 Sink and source capabilities are dependant on the VDDIO voltage. Refer to Section 5.1,
"Absolute Maximum Ratings*," on page 66 for additional information.
Revision 1.4 (08-23-12)
18
SMSC LAN8710A/LAN8710Ai
DATASHEET
SMSC [ SMSC CORPORATION ]
