Datasheet

 2017 Microchip Technology Inc. DS00002245B-page 39
KSZ8041NL/RNL
6.0 ELECTRICAL CHARACTERISTICS
Note 6-1 Current consumption is for the single 3.3V supply KSZ8041NL/RNL device only, and includes the
1.8V supply voltage (VDDPLL_1.8) that is provided by the KSZ8041NL/RNL. The PHY port’s
transformer consumes an additional 45 mA @ 3.3V for 100BASE-TX and 70 mA @ 3.3V for
10BASE-T.
Note 6-2 T
A
= 25°C. Specification for packaged product only.
TABLE 6-1: ELECTRICAL CHARACTERISTICS (Note 6-1, Note 6-2)
Symbol Parameter Condition Min. Typ. Max. Units
Supply Current
I
DD1
100BASE-TX
Chip only (no transformer);
Full-duplex traffic @ 100%
utilization
— 53.0 — mA
I
DD2
10BASE-T
Chip only (no transformer);
Full-duplex traffic @ 100%
utilization
— 38.0 — mA
I
DD3
Power-Saving Mode
Ethernet cable discon-
nected (reg. 1F.10 = 1)
— 32.0 — mA
I
DD4
Power-Down Mode
Software power-down (reg.
0.11 = 1)
—4.0—mA
TTL Inputs
V
IH
Input High Voltage — 2.0 — — V
V
IL
Input Low Voltage — — — 0.8 V
I
IN
Input Current V
IN
= GND ~ VDDIO — –10 10 µA
TTL Outputs
V
OH
Output High Voltage I
OH
= 4mA 2.4 — — V
V
OL
Output Low Voltage I
OL
= 4 mA — — 0.4 V
|I
oz
| Output Tri-State Leakage — — — 10 µA
LED Outputs
I
LED
Output Drive Current
Each LED pin (LED0,
LED1)
—8—mA
100BASE-TX Transmit (measured differentially after 1:1 transformer)
V
O
Peak Differential Output
Voltage
100 termination across
differential output
0.95 — 1.05 V
V
IMB
Output Voltage Imbalance
100 termination across
differential output
—— 2 %
t
r
, t
f
Rise/Fall Time — 3 — 5 ns
Rise/Fall Time Imbalance — 0 — 0.5 ns
Duty Cycle Distortion — — — +
0.25 ns
Overshoot — — — 5 %
V
SET
Reference Voltage of ISET — — 0.65 — V
— Output Jitter Peak-to-peak — 0.7 1.4 ns
10BASE-T Transmit (measured differentially after 1:1 transformer)
V
P
Peak Differential Output
Voltage
100 termination across
differential output
2.2 — 2.8 V
— Jitter Added Peak-to-peak — — 3.5 ns
t
r
, t
f
Rise/Fall Time — — 25 — ns
10BASE-T Receive
V
SQ
Squelch Threshold 5 MHz square wave — 400 — mV