參數(shù)資料
型號： EWIXP455ABT
廠商： INTEL CORP
元件分類： 微控制器/微處理器
英文描述： 266 MHz, RISC PROCESSOR, PBGA544
封裝： LEAD FREE, PLASTIC, BGA-544
文件頁數(shù)： 72/163頁
文件大?。?/td> 1123K
代理商： EWIXP455ABT
Electrical Specifications
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
May 2005
Document Number: 306261-002
163
5.8
Power Dissipation
The Intel
IXP45X and Intel IXP46X Product Line of Network Processors were tested assuming
a typical worst case networking application under a tester environment. The following power
assessments in Table 82 assume this typical worst case networking application using the interface
activity factors listed in Table 83. The actual power may vary if interface activity factors are
different from Table 83. If applications do not require use of certain peripherals or if interfaces
operate at lower activity factors, then the power required by the part may be significantly less than
the numbers stated in Table 82.
Activity factor is directly proportional to the overall power consumption where each application
will have a different activity factor and different power conclusion. Table 83 illustrates the activity
factor of each interface on the tester during the typical worst case networking application.
5.9
Ordering Information
For ordering information, please contact your local Intel sales representative.
Table 82.
Power Dissipation Values
Part Type
Power Rail
Icc (mA)
Power Per Rail
(mW)
Maximum Power
Dissipation (Watts)
Intel IXP45X and Intel IXP46X Product
Line of Network Processors— 266 MHz
3.3 V
88
305
2.8
2.5 V
255
669
1.3 V
1335
1822
Intel IXP45X and Intel IXP46X Product
Line of Network Processors — 400 MHz
3.3 V
88
305
3.0
2.5 V
255
669
1.3 V
1485
2027
Intel IXP45X and Intel IXP46X Product
Line of Network Processors — 533 MHz
3.3 V
88
305
3.2
2.5 V
255
669
1.3 V
1630
2225
Intel IXP46X Product Line — 667 MHz
3.3 V
88
305
3.6
2.5 V
255
669
1.4 V
1785
2624
Power in mW is calculated using Maximum Vcc specification for each power rail.
Table 83.
Power Dissipation Test Conditions
Interface
DDR
(data/addr)
PCI
(addr/cntl)
EXP
(data/cntl)
Ethernet
(data)
UTOPIA
(data)
Activity Factor
15% / 6%
16% / 10%
5% / 3.7%
20%
17%
NOTES:
1. All output clocks toggling at their specified rate.
2. Tester did not include termination resistors on any interface for power analysis.
3. Tester measures power at 85 degrees F Ambient.
4. Current measurements are average and not peak.
5. Intel XScale Core processor tested running DSP software.
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