Micrel, Inc.
KSZ8041NL
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage
Supply Voltage
(VDDPLL_1.8)...............................................-0.5V to +2.4V
(VDDIO_3.3, VDDA_3.3) ...................................-0.5V to +4.0V
Input Voltage (all inputs) ...............................-0.5V to +4.0V
Output Voltage (all outputs) ..........................-0.5V to +4.0V
Lead Temperature (soldering, 10sec.)....................... 260°C
Storage Temperature (Ts) ..........................-55°C to +150°C
ESD Rating(3)..................................................................6kV
(VDDIO_3.3, VDDA_3.3) .......................... +3.135V to +3.465V
Ambient Temperature (TA)..............................0°C to +70°C
Maximum Junction Temperature (TJ Max) ................. 125°C
Maximum Case Temperature (TC Max)...................... 150°C
Thermal Resistance (θJA) .........................................34°C/W
Thermal Resistance (θJC)...........................................6°C/W
Electrical Characteristics(4)
Symbol
Supply Current(5)
IDD1 100Base-TX
Parameter
Condition
Min
Typ
Max
Units
Chip only (no transformer);
53
38
58.3
41.8
mA
mA
Full-duplex traffic @ 100% utilization
Chip only (no transformer);
IDD2
10Base-T
Full-duplex traffic @ 100% utilization
Ethernet cable disconnected (reg. 1F.10 = 1)
Software power down (reg. 0.11 = 1)
IDD3
Power Saving Mode
Power Down Mode
32
4
35.2
4.4
mA
mA
IDD4
TTL Inputs
VIH
VIL
IIN
Input High Voltage
Input Low Voltage
Input Current
2.0
2.4
V
V
0.8
10
VIN = GND ~ VDDIO
-10
µA
TTL Outputs
VOH
VOL
|Ioz|
Output High Voltage
IOH = -4mA
IOL = 4mA
V
V
Output Low Voltage
0.4
10
Output Tri-State Leakage
µA
100Base-TX Transmit (measured differentially after 1:1 transformer)
VO
Peak Differential Output Voltage
Output Voltage Imbalance
Rise/Fall Time
0.95
1.05
V
100Ω termination across differential output
100Ω termination across differential output
VIMB
tr, tf
2
5
%
3
0
ns
ns
ns
%
0.5
+ 0.25
5
Rise/Fall Time Imbalance
Duty Cycle Distortion
Overshoot
0.65
0.7
VSET
Reference Voltage of ISET
Output Jitter
V
1.4
Peak-to-peak
ns
Notes:
1. Exceeding the absolute maximum rating may damage the device. Stresses greater than the absolute maximum rating may cause permanent
damage to the device. Operation of the device at these or any other conditions above those specified in the operating sections of this specification
is not implied. Maximum conditions for extended periods may affect reliability.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. TA = 25°C. Specification for packaged product only.
5. Current consumption is for the single 3.3V supply KSZ8041NL device only, and includes the 1.8V supply voltage (VDDPLL_1.8) that is provided by the
KSZ8041NL. The PHY port’s transformer consumes an additional 45mA @ 3.3V for 100Base-TX and 70mA @ 3.3V for 10Base-T.
July 2008
31
M9999-071808-1.2
MICROCHIP [ MICROCHIP ]
