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LAN8740 датащи(PDF) 13 Page - Microchip Technology

номер детали LAN8740
подробное описание детали  Small Footprint MII/RMII 10/100 Energy Efficient Ethernet Transceiver with HP Auto-MDIX and flexPWR짰 Technology
PDF  136 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN8740 датащи(HTML) 13 Page - Microchip Technology

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2013-2015 Microchip Technology Inc.
DS00001987A-page 13
LAN8740A/LAN8740Ai
TABLE 2-3:
SERIAL MANAGEMENT INTERFACE (SMI) PINS
Num Pins
Name
Symbol
Buffer Type
Description
1SMI Data
Input/Output
MDIO
VIS/
VO8
(PU)
Serial Management Interface data input/output
1
SMI Clock
MDC
VIS
Serial Management Interface clock
TABLE 2-4:
ETHERNET PINS
Num Pins
Name
Symbol
Buffer Type
Description
1
Ethernet
TX/RX Posi-
tive Channel
1
TXP
AIO
Transmit/Receive Positive Channel 1
1
Ethernet
TX/RX Nega-
tive Channel
1
TXN
AIO
Transmit/Receive Negative Channel 1
1
Ethernet
TX/RX Posi-
tive Channel
2
RXP
AIO
Transmit/Receive Positive Channel 2
1
Ethernet
TX/RX Nega-
tive Channel
2
RXN
AIO
Transmit/Receive Negative Channel 2
TABLE 2-5:
MISCELLANEOUS PINS
Num Pins
Name
Symbol
Buffer Type
Description
1
External
Crystal
Input
XTAL1
ICLK
External crystal input
External
Clock Input
CLKIN
ICLK
Single-ended clock oscillator input.
Note:
When using a single ended clock
oscillator, XTAL2 should be left uncon-
nected.
1
External
Crystal Out-
put
XTAL2
OCLK
External crystal output
1
External
Reset
nRST
VIS
(PU)
System reset. This signal is active low.



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