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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F446RC датащи(PDF) 98 Page - STMicroelectronics |
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STM32F446RC датащи(HTML) 98 Page - STMicroelectronics |
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98 / 201 page  Electrical characteristics STM32F446xC/E 98/201 DocID027107 Rev 5 On-chip peripheral current consumption The MCU is placed under the following conditions: • At startup, all I/O pins are in analog input configuration. • All peripherals are disabled unless otherwise mentioned. • HCLK is the system clock. fPCLK1 = fHCLK/4, and fPCLK2 = fHCLK/2. The given value is calculated by measuring the difference of current consumption – with all peripherals clocked off – with only one peripheral clocked on –fHCLK = 180 MHz (Scale1 + over-drive ON), fHCLK = 144 MHz (Scale 2), fHCLK = 120 MHz (Scale 3)" • Ambient operating temperature is 25 °C and VDD=3.3 V. IDDIO I/O switching Current VDD = 3.3 V CEXT = 10 pF C = CINT + CEXT + CS 2 MHz 0.18 mA 8 MHz 0.67 25 MHz 2.09 50 MHz 3.6 60 MHz 4.5 84 MHz 7.8 90 MHz 9.8 VDD = 3.3 V CEXT = 22 pF C = CINT + CEXT + CS 2 MHz 0.26 8 MHz 1.01 25 MHz 3.14 50 MHz 6.39 60 MHz 10.68 VDD = 3.3 V CEXT = 33 pF C = CINT + Cext + CS 2 MHz 0.33 8 MHz 1.29 25 MHz 4.23 50 MHz 11.02 1. CS is the PCB board capacitance including the pad pin. CS = 7 pF (estimated value). 2. This test is performed by cutting the LQFP144 package pin (pad removal). Table 34. Switching output I/O current consumption(1) (continued) Symbol Parameter Conditions I/O toggling frequency (fsw) Typ Unit |
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