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LAN8720 데이터시트(PDF) 8 Page - SMSC Corporation

부품명 LAN8720
상세설명  Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
PDF  79 Pages
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제조업체  SMSC [SMSC Corporation]
홈페이지  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN8720 데이터시트(HTML) 8 Page - SMSC Corporation

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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
Revision 1.0 (05-28-09)
8
SMSC LAN8720/LAN8720i
DATASHEET
Table 6.2 100M RMII Receive Timing Values (50MHz REF_CLK IN). . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 6.3 100M RMII Transmit Timing Values (50MHz REF_CLK IN) . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 6.4 10M RMII Receive Timing Values (50MHz REF_CLK IN). . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 6.5 10M RMII Transmit Timing Values (50MHz REF_CLK IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 6.6 100M RMII Receive Timing Values (50MHz REF_CLK OUT). . . . . . . . . . . . . . . . . . . . . . . . . 60
Table 6.7 100M RMII Transmit Timing Values (50MHz REF_CLK OUT) . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 6.8 10M RMII Receive Timing Values (50MHz REF_CLK OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 6.9 10M RMII Transmit Timing Values (50MHz REF_CLK OUT) . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 6.10 RMII CLKIN (REF_CLK) Timing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 6.11 Reset Timing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Table 6.12 LAN8720/LAN8720i Crystal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 7.1 Maximum Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Table 7.2 ESD and LATCH-UP Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Table 7.3 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 7.4 Power Consumption Device Only (REF_CLK IN MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Table 7.5 Power Consumption Device Only (50MHz REF_CLK OUT MODE) . . . . . . . . . . . . . . . . . . . . 68
Table 7.6 RMII Bus Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Table 7.7 LAN Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7.8 LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7.9 Configuration Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7.10 General Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7.11 Internal Pull-Up / Pull-Down Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7.12 100Base-TX Transceiver Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table 7.13 10BASE-T Transceiver Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table 9.1 24 Terminal QFN Package Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Table 10.1 Customer Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79



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