LAN8810 Datasheet, PDF (12/83 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver

LAN8810/LAN8810I
2.1 Buffer Types
TABLE 2-9: BUFFER TYPES
Buffer Type
Description
VIS
VO6
VO8
PU
PD
AI
AIO
ICLK
OCLK
P
Variable voltage Schmitt-triggered input
Variable voltage output with 6mA sink and 6mA source
Variable voltage output with 8mA sink and 8mA source
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.
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.
Analog input
Analog bi-directional
Crystal oscillator input pin
Crystal oscillator output pin
Power pin
Note 1: The digital signals are not 5V tolerant. Refer to Section 5.1, "Absolute Maximum Ratings*," on page 60 for
additional buffer information.
2: Sink and source capabilities are dependant on the VDDVARIO voltage. Refer to Section 5.1, "Absolute Max-
imum Ratings*," on page 60 for additional information.
DS00001870B-page 12
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