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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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STR720 数据表(PDF) 380 Page - STMicroelectronics |
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STR720 数据表(HTML) 380 Page - STMicroelectronics |
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380 / 401 page  STR720 - ELECTRICAL CHARACTERISTICS 380/401 28.7 Clock and Timing Characteristics 28.7.1 Internal clock characteristics Application software controls STR720 internal clocks by configuring RCCU registers and setting PLL related parameters (see Chapter 13: RESET AND CLOCK CONTROL UNIT (RCCU) on page 138). The values hereafter reported defines the limit for internal frequencies that must be respected by clock configuration. Figure 74. Supply current versus system frequency Table 93. Internal clock limits Symbol Parameter Conditions Value Unit Min Typ Max fCPU CPU, AHB and S-APB clock frequency -50 70 MHz fAPB A-APB clock frequency fCPU / 16 - fCPU / 2 MHz fSYS [MHz] 10 20 75 50 25 40 30 50 60 70 0 0 IDD(25°C) |
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