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STM32F446ME 数据表(PDF) 76 Page - STMicroelectronics |
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STM32F446ME 数据表(HTML) 76 Page - STMicroelectronics |
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76 / 201 page  Electrical characteristics STM32F446xC/E 76/201 DocID027107 Rev 5 6.3 Operating conditions 6.3.1 General operating conditions Table 16. General operating conditions Symbol Parameter Conditions(1) Min Typ Max Unit fHCLK Internal AHB clock frequency Power Scale 3 (VOS[1:0] bits in PWR_CR register = 0x01), Regulator ON, over-drive OFF 0- 120 MHz Power Scale 2 (VOS[1:0] bits in PWR_CR register = 0x10), Regulator ON Over- drive OFF 0 -144 Over- drive ON -168 Power Scale 1 (VOS[1:0] bits in PWR_CR register= 0x11), Regulator ON Over- drive OFF 0 -168 Over- drive ON -180 fPCLK1 Internal APB1 clock frequency Over-drive OFF 0 - 42 Over-drive ON 0 - 45 fPCLK2 Internal APB2 clock frequency Over-drive OFF 0 - 84 Over-drive ON 0 - 90 |
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