Datasheet

 2009-2016 Microchip Technology Inc. DS00002306A-page 17
LAN9514/LAN9514I
Many customers use a single poly fuse to power all their devices. For the ganged situation, all power control pins must
be tied together.
2.3 Buffer Types
FIGURE 2-5: PORT POWER WITH GANGED CONTROL WITH POLY FUSE
TABLE 2-8: BUFFER TYPES
Buffer Type Description
IS Schmitt-triggered Input
IS_5V 5V Tolerant Schmitt-triggered Input
O8 Output with 8 mA sink and 8 mA source
OD8 Open-drain output with 8 mA sink
O12 Output with 12 mA sink and 12 mA source
OD12 Open-drain output with 12 mA sink
PU 50 μA (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 LAN9514/LAN9514i. When
connected to a load that must be pulled high, an external resistor must be added.
USB
Device
Poly Fuse
5V
USB
Device
PRTCTL2
LAN9514/
LAN9514i
PRTCTL3
PRTCTL4
PRTCTL5