Datasheet

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STM32F412xE/G Electrical characteristics
161
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.
• The ART accelerator is ON.
• Voltage Scale 2 mode selected, internal digital voltage V12 = 1.26 V.
• HCLK is the system clock at 100 MHz. f
PCLK1
= f
HCLK
/2, and f
PCLK2
= f
HCLK
.
The given value is calculated by measuring the difference of current consumption
– with all peripherals clocked off,
– with only one peripheral clocked on,
– scale 1 with f
HCLK
= 100 MHz,
– scale 2 with f
HCLK
= 84 MHz,
– scale 3 with f
HCLK
= 64 MHz.
• Ambient operating temperature is 25 °C and V
DD
=3.3 V.
Table 36. Peripheral current consumption
Peripheral
I
DD
(Typ)
Unit
Scale 1 Scale 2 Scale 3
AHB1
GPIOA 1.84 1.75 1.55
µA/MHz
GPIOB 1.90 1.80 1.61
GPIOC 1.77 1.67 1.50
GPIOD 1.67 1.58 1.42
GPIOE 1.75 1.67 1.48
GPIOF 1.65 1.56 1.39
GPIOG 1.65 1.56 1.39
GPIOH 0.62 0.57 0.53
CRC 0.26 0.25 0.22
DMA1
(1)
1,71N+2,98 1,62N+2,87 1,45N+2,58
DMA2
(1)
1,78N+2,62 1,70N+2.53 1,52N+2.26
AHB2
RNG 0.77 0.74 0.66
USB_OTG_FS 19.68 18.73 16.78
AHB3
FSMC 5.36 5.11 4.56
QSPI 9.99 9.51 8.53
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