LAN8720A-CP-TR datasheet(8/79 Pages) SMSC

Part #	LAN8720A-CP-TR

Description	Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support

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Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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8 / 79 page

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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