82575EB Datasheet, PDF (46/62 Pages) Intel Corporation – Intel® 82575EB Gigabit Ethernet Controller Datasheet

Intel^® 82575EB Gigabit Ethernet Controller — Pull-up and Pull-down Specifications and Signals
6.3 Pull-up and Pull-down Specifications and
Signals
Table 11.
Internal and External Pull-up and Pull-down Values
PU (Internal)
PU (External, recommended)
PD (External, reccommended)
Min
2.7K
Nominal
5K
<3K
<400
Max
8.6K
Units



For external Pull-up requirements, see the 82575EB reference schematics.
The table below lists internal & external pull-up resistors and whether they are activated in the different
device states. Each internal PUP has a nominal value of 5k, ranging from 2.7K to 8.6K.
The device states are defined as follow:
• Power-up = while 3.3 V is stable, but not 1.0 V
• Active = normal mode (not power up nor disable)
• Disable = device disabled
Intel^® 82575EB Gigabit Ethernet Controller
Datasheet
46
317679-004
Revision: 2.11
January 2011