Datasheet
Table Of Contents
- 1.0 Introduction
- 2.0 Pin Description and Configuration
- 3.0 Functional Description
- 3.1 10BASE-T/100BASE-TX Transceiver
- 3.2 RMII Interface
- 3.3 Back-to-Back Mode – 100 Mbps Copper Repeater
- 3.4 MII Management (MIIM) Interface
- 3.5 Interrupt (INTRP)
- 3.6 HP Auto MDI/MDI-X
- 3.7 Loopback Mode
- 3.8 LinkMD® Cable Diagnostic
- 3.9 NAND Tree Support
- 3.10 Power Management
- 3.11 Reference Circuit for Power and Ground Connections
- 3.12 Typical Current/Power Consumption
- 4.0 Register Descriptions
- 5.0 Operational Characteristics
- 6.0 Electrical Characteristics
- 7.0 Timing Diagrams
- 8.0 Reset Circuit
- 9.0 Reference Circuits — LED Strap-In Pins
- 10.0 Reference Clock - Connection and Selection
- 11.0 Magnetic - Connection and Selection
- 12.0 Package Outline
2016 Microchip Technology Inc. DS00002199A-page 35
KSZ8081RNA/RND
5.0 OPERATIONAL CHARACTERISTICS
5.1 Absolute Maximum Ratings*
Supply Voltage (V
IN
)
(V
DD_1.2
).................................................................................................................................................... –0.5V to +1.8V
(V
DDIO
, V
DDA_3.3
) ...................................................................................................................................... –0.5V to +5.0V
Input Voltage (all inputs)............................................................................................................................ –0.5V to +5.0V
Output Voltage (all outputs)....................................................................................................................... –0.5V to +5.0V
Lead Temperature (soldering, 10s) ....................................................................................................................... +260°C
Storage Temperature (T
S
) ...................................................................................................................... –55°C to +150°C
*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 spec-
ified in the operating sections of this specification is not implied. Maximum conditions for extended periods may affect
reliability.
5.2 Operating Ratings**
Supply Voltage
(V
DDIO_3.3
, V
DDA_3.3
) ........................................................................................................................ +3.135V to +3.465V
(V
DDIO_2.5
) ........................................................................................................................................ +2.375V to +2.625V
(V
DDIO_1.8
) ........................................................................................................................................ +1.710V to +1.890V
Ambient Temperature
(T
A
Commercial)........................................................................................................................................... 0°C to +70°C
(T
A
Industrial) ........................................................................................................................................... –40°C to +85°C
Maximum Junction Temperature (T
J
max.) ........................................................................................................... +125°C
Thermal Resistance (
JA
)..............................................................................................................................+47.84°C/W
Thermal Resistance (
JC
) .............................................................................................................................+14.71°C/W
**The device is not guaranteed to function outside its operating ratings.
Note: Do not drive input signals without power supplied to the device.