Datasheet

Micrel, Inc.
KSZ8081MNX/KSZ8081RNB
August
19, 2015 40
Revision 1.4
Transceiver (3.3V), Digital I/Os (1.8V)
Table 12. Typical Current/Power Consumption (VDDA_3.3 = 3.3V, VDDIO = 1.8V)
Condition
3.3V Transceiver
(VDDA_3.3)
1.8V Digital I/Os
(VDDIO)
Total Chip Power
mA mA mW
100Base-TX Link-up (no traffic) 34 11 132
100Base-TX Full-duplex @ 100% utilization 34 12 134
10Base-T Link-up (no traffic) 15 9.0 65.7
10Base-T Full-duplex @ 100% utilization 27 9.0 105
Power-saving mode (Reg. 1Fh, Bit [10] = 1) 15 9.0 65.7
EDPD mode (Reg. 18h, Bit [11] = 0) 11 9.0 52.5
EDPD mode (Reg. 18h, Bit [11] = 0) and
PLL off (Reg. 10h, Bit [4] = 1)
4.05 1.21 15.5
Software power-down mode (Reg. 0h, Bit [11] =1)
2.79 1.21 11.4
Software power-down mode (Reg. 0h, Bit [11] =1) and
slow-oscillator mode (Reg. 11h, Bit [5] =1)
1.65 0.19 5.79