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STM32F479AI 数据表(PDF) 89 Page - STMicroelectronics |
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STM32F479AI 数据表(HTML) 89 Page - STMicroelectronics |
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89 / 208 page ![]() DocID028010 Rev 2 89/208 STM32F479xx Electrical characteristics 187 5.3 Operating conditions 5.3.1 General operating conditions Table 17. 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 VDD Standard operating voltage - 1.7(2) -3.6 V VDDA(3)(4) Analog operating voltage (ADC limited to 1.2 M samples) Must be the same potential as VDD(5) 1.7(2) -2.4 Analog operating voltage (ADC limited to 2.4 M samples) 2.4 - 3.6 VDDUSB USB supply voltage (supply voltage for PA11, PA12, PB14 and PB15 pins) USB not used 1.7 3.3 3.6 USB used 3.0 - 3.6 VDDDSI DSI system operating voltage - 1.7(2) -3.6 VBAT Backup operating voltage - 1.65 - 3.6 |
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