STM32F407ZEH7TR 查看數據表（PDF） - STMicroelectronics

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STM32F407ZEH7TR

ARM Cortex-M4 32b MCU+FPU, 210DMIPS, up to 1MB Flash/192+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

STMicroelectronics 

STM32F405xx, STM32F407xx

Electrical characteristics

supply voltage to supply the I/O pin circuitry and to charge/discharge the capacitive load

(internal or external) connected to the pin:

ISW = VDD × fSW × C

where

ISW is the current sunk by a switching I/O to charge/discharge the capacitive load

VDD is the MCU supply voltage

fSW is the I/O switching frequency

C is the total capacitance seen by the I/O pin: C = CINT+ CEXT

The test pin is configured in push-pull output mode and is toggled by software at a fixed

frequency.

DocID022152 Rev 4

91/185

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