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LAN9514 데이터시트(PDF) 17 Page - Microchip Technology

부품명 LAN9514
상세설명  USB 2.0 Hub and 10/100 Ethernet Controller
PDF  54 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9514 데이터시트(HTML) 17 Page - Microchip Technology

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 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



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