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STM32F479AI 数据表(PDF) 98 Page - STMicroelectronics |
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STM32F479AI 数据表(HTML) 98 Page - STMicroelectronics |
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98 / 217 page  Electrical characteristics STM32F479xx 98/217 DocID028010 Rev 3 Typical and maximum current consumption The MCU is placed under the following conditions: • All I/O pins are in input mode with a static value at VDD or VSS (no load). • All peripherals are disabled except if it is explicitly mentioned. • The Flash memory access time is adjusted both to fHCLK frequency and VDD range (see Table 18: Limitations depending on the operating power supply range). • When the regulator is OFF, the V12 is provided externally, as described in Table 17: General operating conditions. • The voltage scaling and over-drive mode are adjusted to fHCLK frequency as follows: – Scale 3 for fHCLK ≤ 120 MHz – Scale 2 for 120 MHz < fHCLK ≤ 144 MHz – Scale 1 for 144 MHz < fHCLK ≤ 180 MHz. The over-drive is only ON at 180 MHz. • The system clock is HCLK, fPCLK1 = fHCLK/4, and fPCLK2 = fHCLK/2. • External clock frequency is 25 MHz and PLL is ON when fHCLK is higher than 25 MHz. • The typical current consumption values are obtained for 1.7 V ≤ VDD ≤ 3.6 V voltage range and for ambient temperature TA= 25 °C unless otherwise specified. • The maximum values are obtained for 1.7 V ≤ VDD ≤ 3.6 V voltage range and a maximum ambient temperature (TA), unless otherwise specified. • For the voltage range 1.7 V ≤ VDD ≤ 2.1 V the maximum frequency is 168 MHz. |
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