82563EB Datasheet, PDF (24/52 Pages) Intel Corporation – Intel® 82563EB/82564EB Gigabit Ethernet Controllers

82563EB/82564EB Gigabit Platform LAN Connect Networking Silicon
Table 17. DC and AC Characteristics (Sheet 2 of 2)
Symbol
Parameter
Condition
Min Typ Max Unit
I_OL
I_OH
I_IN
I_OZ
C_IN
C_OUT
R_PUD
Output current LOW
3mA drivers (TTL3)
6mA drivers (TTL6)
12mA drivers (TTL12)
V_OL
3
mA
-
-
V_OL
6
mA
V_OL
12
mA
Output current HIGH
3mA drivers (TTL3)
6mA drivers (TTL6)
12mA drivers (TTL12)
V_OH
-3
mA
-
-
V_OH
-6
mA
V_OH
-12
mA
Input Current
TTL inputs
V_IN = V_DD or V_SS
-10
±1
10
µA
Inputs with pull-down resistors
V_IN = V_DD
23
72
µA
TTL inputs with pull-up resistors
V_IN = V_SS
-23
-72
µA
3-state output leakage current
V_OH = V_DD or V_SS
-10
±1
10
µA
Input capacitance
Any input and bi-
directional buffer
-
2.5
-
pF
Output capacitance
Any output buffer
-
2.0
-
pF
Internal Pull-up/down Resistor
value
-
50
-
130
kΩ
4.4
4.4.1
Power Supply Connections
There are two options in providing power to the 82563EB/82564EB:
• Connecting the 82563EB/82564EB to three external power supplies with nominal voltages of
3.3V, 1.9V, and 1.2V covered in Section 4.4.1.
• Powering the 82563EB/82564EB with only an external 3.3V supply, and using internal power
regulators from the 82563EB/82564EB combined with external PNP transistors to supply the
1.9V and 1.2V levels. covered in Section 4.4.3.
External LVR Power Delivery
The following power supply requirements apply to designs in which the 82563EB/82564EB is
supplied by external voltage regulators. These systems do not use the internal regulator logic built
into the 82563EB/82564EB as described in Section 4.4.3.
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