Datasheet
2017 Microchip Technology Inc. DS00002436B-page 43
KSZ8041TL/FTL/MLL
6.0 ELECTRICAL CHARACTERISTICS
T
A
= 25°C. Specification is for packaged product only.
Note 6-1 Current consumption is for the single 3.3V supply KSZ8041TL/FTL/MLL device only, and includes the
1.8V supply voltage (V
DD_1.8
, V
DDA_1.8
, V
1.8_OUT
) that is provided by the KSZ8041TL/FTL/MLL. The
PHY port’s transformer consumes an additional 45 mA @ 3.3V for 100BASE-TX and 70 mA @ 3.3V
for 10BASE-T.
TABLE 6-1: ELECTRICAL CHARACTERISTICS
Parameters Symbol Min. Typ. Max. Units Note
Supply Current (Note 6-1)
100BASE-TX I
DD1
—53.058.3mA
Chip only (no transformer);
Full-duplex traffic @ 100% utilization
10BASE-T I
DD2
—38.041.8mA
Chip only (no transformer);
Full-duplex traffic @ 100% utilization
Power Saving Mode I
DD3
—32.035.2mA
Ethernet cable disconnected (reg.
1F.10 = 1)
Power Down Mode I
DD4
— 4.0 4.4 mA Software power down (reg. 0.11 = 1)
CMOS Inputs
Input High Voltage V
IH
2.0 — — V —
Input Low Voltage V
IL
——0.8V —
Input Current I
IN
— –10 10 µA V
IN
= GND ~ V
DDIO
CMOS Outputs
Output High Voltage V
OH
2.4 — — V I
OH
= –4 mA
Output Low Voltage V
OL
——0.4V I
OL
= 4 mA
Output Tri-State Leakage |I
OZ
|——10µA —
LED Outputs
Output Drive Current I
LED
— 8 — mA Each LED pin (LED0, LED1)
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
Output Voltage Imbalance V
IMB
—— 2 %
100 termination across differential
output
Rise/Fall Time t
r
/t
f
3—5ns —
Rise/Fall Time Imbalance — 0 — 0.5 ns —
Duty Cycle Distortion — — — ±0.25 ns —
Overshoot — — — 5 % —
Reference Voltage of I
SET
V
SET
—0.65— V —
Output Jitter — — 0.7 1.4 ns Peak-to-Peak
10BASE-T Transmit (measured differentially after 1:1 transformer)
Peak Differential Output
Voltage
V
P
2.2 — 2.8 V
100 termination across differential
output
Jitter Added — — — 3.5 ns Peak-to-Peak
Rise/Fall Time t
r
/t
f
—25—ns —
10BASE-T Receive
Squelch Threshold V
SQ
— 400 — mV 5 MHz square wave