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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LAN8740Ai-EN 데이터시트(PDF) 5 Page - Microchip Technology |
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LAN8740Ai-EN 데이터시트(HTML) 5 Page - Microchip Technology |
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5 / 136 page  2013-2015 Microchip Technology Inc. DS00001987A-page 5 LAN8740A/LAN8740Ai The LAN8740A/LAN8740Ai is available in commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature range versions. A typical system application is shown in Figure 1-1. Figure 1-2 provides an internal block diagram of the device. FIGURE 1-1: SYSTEM BLOCK DIAGRAM FIGURE 1-2: ARCHITECTURAL OVERVIEW LAN8740A/ LAN8740Ai 10/100 Ethernet MAC MII/ RMII Mode LED Transformer Crystal or Clock Oscillator MDI RJ45 Interrupt Generator LEDs PLL Receiver DSP System: Clock Data Recovery Equalizer Squeltch & Filters Analog-to- Digital 10M RX Logic 100M RX Logic 100M PLL 10M PLL Transmitter 10M Transmitter 100M Transmitter 10M TX Logic 100M TX Logic Central Bias PHY Address Latches LAN8740A/LAN8740Ai RBIAS LED1 nINT XTAL2 XTAL1/CLKIN LED2 Management Control Mode Control Reset Control MDIX Control HP Auto-MDIX RXP/RXN TXP/TXN TXD[0:3] TXEN TXER TXCLK RXD[0:3] RXDV RXER RXCLK CRS COL/CRS_DV MDC MDIO Auto- Negotiation RMIISEL nRST MODE[0:2] SMI PHYAD[0:2] WoL |
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