參數(shù)資料
型號: 82572EI
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: Gigabit Ethernet Controller
中文描述: 1 CHANNEL(S), 1000M bps, LOCAL AREA NETWORK CONTROLLER, BGA256
封裝: 17 X 17 MM, FC-BGA-256
文件頁數(shù): 33/58頁
文件大?。?/td> 318K
代理商: 82572EI
Product Datasheet
27
82571EB/82572EI Gigabit Ethernet Controller
Table 17. Reference Crystal Specification Requirements
Specification
Value
Vibrational Mode
Fundamental
Nominal Frequency
25.000 MHz at 25 °C
Frequency Tolerance
±30 ppm recommended
±50 ppm across the entire
operating temperature range
(required by IEEE specifications)
Temperature Stability
+/- 30 ppm at 0 °C to 70 °C
Calibration Mode
Parallel
Load Capacitance
20 pF to 24 pF
Shunt Capacitance
6 pF maximum
Series Resistance, Rs
50
maximum
Drive Level
0.5 mW maximum
Aging
+/- 5.0 ppm per year maximum
Insulation Resistance
500
Μ
minimum at DC 100 V
Board Capacitance
4 pF
External Capacitors
27 pF
Board Resistance
0.1
Table 18. Link Interface Clock Requirements
Symbol
Parameter
Min
Typ
Max
Unit
fGTX
a
GTX_CLK frequency
N/A
125
N/A
MHz
a.
GTX_CLK is used externally for test purposes only.
Table 19. EEPROM Interface Clock Requirements
Symbol
Parameter
Min
Typ
Max
Unit
fSK
SPI EEPROM Clock
N/A
2
2.1
MHz
Table 20. AC Test Loads for General Output Pins
Symbol
Parameter
Min
Typ
Max
Unit
C
L
Capacitance of test load
N/A
16
N/A
pF
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