Datasheet
2017 Microchip Technology Inc. DS00002348A-page 75
KSZ8873MLL/FLL/RLL
6.0 ELECTRICAL CHARACTERISTICS
T
A
= 25°C. Specification is for packaged product only. Current consumption is for the single 3.3V supply device only and
includes the 1.8V supply voltages (V
DDA
, V
DDC
) that are provided via power output pin 56 (V
DDCO
).
Each PHY port’s transformer consumes an additional 45 mA at 3.3V for 100BASE-TX and 70 mA at 3.3V for 10BASE-
T at full traffic.
TABLE 6-1: ELECTRICAL CHARACTERISTICS
Parameters Symbol Min. Typ. Max. Units Note
100BASE-TX Operation (All Ports @ 100% Utilization)
100BASE-TX
(analog core + digital core
+ transceiver + digital I/O)
I
DDXIO
—115—mA
V
DDA_3.3
, V
DDIO
= 3.3V (single power)
Core power is provided from the
internal 1.8V LDO with input voltage
3.3V V
DDIO
100BASE-TX
(3.3V Transceiver/digital
I/O + 1.8V Analog/digital
core)
I
DD
+ I
C
— 32 + 83 — mA
V
DDA_3.3
, V
DDIO
= 3.3V
Analog and digital core power V
DDC
using an external 1.8V LDO
10BASE-T Operation (All Ports @ 100% Utilization)
10BASE-T
(analog core + digital core
+ transceiver + digital I/O)
I
DDXIO
—85—mA
V
DDA_3.3
, V
DDIO
= 3.3V
Core power is provided from the
internal 1.8V LDO with input voltage
V
DDIO
10BASE-TX
(3.3V Transceiver/digital
I/O + 1.8V Analog/digital
core)
I
DD
+ I
C
— 14 + 72 — mA
V
DDA_3.3
, V
DDIO
= 3.3V
Analog and digital core power V
DDC
using an external 1.8V LDO
Power Management Mode (with MII/RMII in Default PHY Mode)
Power Saving Mode I
DD3
—96—mA
V
DDA_3.3
, V
DDIO
= 3.3V
Unplug Port 1 and Port 2
Set Register 195 bit[1,0] = [1,1]
Soft Power Down Mode I
DD4
—5—mA
V
DDA_3.3
, V
DDIO
= 3.3V
Set Register 195 bit[1,0] = [1,0]
Energy Detect Mode I
DD5
—15—mA
V
DDA_3.3
, V
DDIO
= 3.3V
Unplug Port 1 and Port 2
Set Register 195 bit[7,0] = 0x05 with
port 3 PHY mode and bypass mode.
CMOS Inputs (V
DDIO
= 3.3V/2.5V/1.8V)
Input High Voltage V
IH
2.0/1.8/
1.3
—— V —
Input Low Voltage V
IL
——
0.8/0.7/
0.5
V—
Input Current I
IN
–10 — 10 µA V
IN
= GND ~ V
DDIO
CMOS Outputs (V
DDIO
= 3.3V/2.5V/1.8V)
Output High Voltage V
OH
2.4/2.0/
1.5
—— V I
OH
= –8 mA
Output Low Voltage V
OL
——
0.4/0.4/
0.3
VI
OL
= 8 mA
Output Tri-State Leakage |I
OZ
|——10µA —
100BASE-TX Transmit (measured differentially after 1:1 transformer)
Peak Differential Output
Voltage
V
O
0.95 — 1.05 V
100 termination across differential
output