82541ER Datasheet, PDF (27/48 Pages) Intel Corporation – 82541ER Gigabit Ethernet Controller

82541ER Gigabit Ethernet Controller
Table 11. I/O Characteristics (Sheet 2 of 2) (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
VOL
Output low
voltage:
3.3 V PCI
IOL = 1500 mA
IOZ
Off-state output
leakage current
VO = VDD or VSS
-10
IOS
Output short
circuit current
CIN
Input
capacitance^b
Input and bi-
directional buffers
V
0.1 * VDD(3.3)
10
µA
-250
mA
8
pF
a. The maximum VIL is 0.6 V for the following Pins: A13, C5, C8, J4, L7, L12, L13, M8, M12, M13, N10, N11, N13, N14, P9, and P13.
b. V_DD (3.3) = 0 V; T_A = 25 C; f = 1 Mhz
4.4
AC Characteristics
Table 12. AC Characteristics: 3.3 V Interfacing
Symbol
PCICLK
Parameter
Clock frequency in PCI mode
Min
Typ
Max
Unit
66
MHz
Table 13. 25 MHz Clock Input Requirements
Symbol
Parameter
f0
df0
Dc
tr
tf
Jptp
Cin
T
Aptp
Vcm
Frequency
Frequency variation
Duty cycle
Rise time
Fall time
Clock jitter (peak-to-peak)^a
Input capacitance
Operating temperature
Input clock amplitude (peak-to-peak)
Clock common mode
Specifications
Min
Typ
Max
25
-50
+30
40
60
5
5
250
20
70
1.0
1.2
1.3
0.6
Units
MHz
ppm
%
ns
ns
ps
pF
°C
V
V
a. Clock jitter is defined according to the recommendations of part 40.6.1.2.5 IEEE 1000BASE-T Standard (at least
10⁵ clock edges, filtered by HPF with cut off frequency 5000 Hz).
Datasheet
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