82573 Datasheet, PDF (29/39 Pages) Intel Corporation – GbE Controllers

Datasheet—82573
Figure 5. External Clock Oscillator Connectivity to the 82573
82573
82563EB/82564EB
XTAL2
XTAL1
3.3V
Table 19.
3.5.3
Specification for External Clock Oscillator
Parameter Name
Frequency
Swing
Frequency Tolerance
Operating Temperature
Aging
Symbol
f_o
V_p-p
∆f/f_o
T_opr
∆f/f_o
Value
25.0 MHz
3.3 ± 0.3 V
±30 ppm
-20 °C to +70 °C
±5 ppm per year
Conditions
at 25 °C
-
0 °C to +70 °C
0 °C to +70 °C
-
Non-Volatile Memory (NVM) Interface: EEPROM
Table 20.
NVM Interface Timing Specifications for EEPROM (Sheet 1 of 2)
Symbol
t_SCK
t_RU
t_FI
t_WH
t_WH
t_CS
t_CSS
t_CSH
t_SU
t_H
t_V
Parameter
SCK clock
frequency
Input rise time
Input fall time
SCK high time¹
SCK low time^a
CS high time
CS setup time
CS hold time
Data-in setup
time
Data-in hold
time
Output Valid
Min
0
200
200
250
250
250
50
50
0
Typ
2
2.5
2.5
250
250
Max
2.1
2
2
200
Units
MHz
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
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