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LAN8720AI データシート(PDF) 65 Page - SMSC Corporation

部品番号 LAN8720AI
部品情報  Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
PDF  79 Pages
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メーカー  SMSC [SMSC Corporation]
ホームページ  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN8720AI データシート(HTML) 65 Page - SMSC Corporation

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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720A/LAN8720Ai
65
Revision 1.4 (08-23-12)
DATASHEET
Note: The current at VDDCR is either supplied by the internal regulator from current entering at
VDD2A, or from an external 1.2V supply when the internal regulator is disabled.
Note: Current measurements do not include power applied to the magnetics or the optional external
LEDs. The Ethernet component current is typically 41mA in 100BASE-TX mode and 100mA in
10BASE-T mode, independent of the 2.5V or 3.3V supply rail of the transformer.
Note 5.6
Calculated with full flexPWR features activated: VDDIO=1.8V & internal regulator disabled.
5.3.2
REF_CLK Out Mode
.
Note: The current at VDDCR is either supplied by the internal regulator from current entering at
VDD2A, or from an external 1.2V supply when the internal regulator is disabled.
Note: Current measurements do not include power applied to the magnetics or the optional external
LEDs. The Ethernet component current is typically 41mA in 100BASE-TX mode and 100mA in
10BASE-T mode, independent of the 2.5V or 3.3V supply rail of the transformer.
Note 5.7
Calculated with full flexPWR features activated: VDDIO=1.8V & internal regulator disabled.
Table 5.2 Device Only Current Consumption and Power Dissipation (REF_CLK Out Mode)
POWER PIN GROUP
VDDA3.3
POWER
PINS(MA)
VDDCR
POWER
PIN(MA)
VDDIO
POWER
PIN(MA)
TOTAL
CURRENT
(MA)
TOTAL
POWER
(MW)
100BASE-T /W TRAFFIC
Max
28
20
6.3
54
179
Typical
26
19
5.8
50
164
Min
22
15
2.9
39
93
Note 5.7
10BASE-T /W TRAFFIC
Max
9.9
13
6.4
30
96
Typical
8.8
12
5.6
26
85
Min
7.1
10
3.0
20
41
Note 5.7
ENERGY DETECT POWER
DOWN
Max
4.5
2.7
0.3
7.5
25
Typical
4.0
1.5
0.2
5.7
19
Min
3.9
1.2
0
5.1
15
Note 5.7
GENERAL POWER DOWN
Max
0.4
2.5
0.2
3.1
10.2
Typical
0.4
1.3
0.2
1.9
6.3
Min
0.4
1.0
0
1.4
2.5
Note 5.7



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