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UM0851 bảng dữ liệu(PDF) 239 Page - STMicroelectronics

tên linh kiện UM0851
Giải thích chi tiết về linh kiện  SPEAr is a family of highly customizable ARM-based embedded
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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UM0851 bảng dữ liệu(HTML) 239 Page - STMicroelectronics

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UM0851
Power management section
Doc ID 16604 Rev 2
239/245
Figure 69.
SPEAr600 current consumption chart
SPEAr300
For SPEAr300, the following jumpers were replaced one at a time to measure the
current source
JP-1 (for 1.2 V)
JP-2 (for 3.3 V)
JP-3 (for 2.5 V)
JP-4 (for 1.8 V)
The current measurements indicate significant power savings. The table and figures below
present the results for SPEAr300.
Table 65.
SPEAr300 power consumption measurements
Jumper settings
Current in resumed
state (mA)
Current in suspended
state (mA)
%Decrease in current
consumption
JP1 - 1.2 V
198.5
43
78.33
JP2 - 3.3 V
7.2
7.0
2.77%
JP3 - 2.5 V
25.8
25.8
0%
JP4 - 1.8 V
43
36
16.27%
350
300
250
200
150
100
50
4
3
2
1
0
Jumper number
Current consumption in resume state
Current consumption in suspend state



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