Datasheet
Electrical characteristics STM32F427xx STM32F429xx
114/239 DocID024030 Rev 10
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.
• I/O compensation cell enabled.
• The ART accelerator is ON.
• Scale 1 mode selected, internal digital voltage V12 = 1.32 V.
• HCLK is the system clock. f
PCLK1
= f
HCLK
/4, and f
PCLK2
= f
HCLK
/2.
The given value is calculated by measuring the difference of current consumption
– with all peripherals clocked off
– with only one peripheral clocked on
–f
HCLK
= 180 MHz (Scale1 + over-drive ON), f
HCLK
= 144 MHz (Scale 2),
f
HCLK
= 120 MHz (Scale 3)"
• Ambient operating temperature is 25 °C and V
DD
=3.3 V.
Table 35. Peripheral current consumption
Peripheral
I
DD
( Typ)
(1)
Unit
Scale 1 Scale 2 Scale 3
AHB1
(up to
180 MHz)
GPIOA 2.50 2.36 2.08
µA/MHz
GPIOB 2.56 2.36 2.08
GPIOC 2.44 2.29 2.00
GPIOD 2.50 2.36 2.08
GPIOE 2.44 2.29 2.00
GPIOF 2.44 2.29 2.00
GPIOG 2.39 2.22 2.00
GPIOH 2.33 2.15 1.92
GPIOI 2.39 2.22 2.00
GPIOJ 2.33 2.15 1.92
GPIOK 2.33 2.15 1.92
OTG_HS+ULPI 27.00 24.86 21.92
CRC 0.44 0.42 0.33
BKPSRAM 0.78 0.69 0.58
DMA1 25.33 23.26 20.50
DMA2 24.72 22.71 20.00
DMA2D 28.50 26.32 23.33
ETH_MAC
ETH_MAC_TX
ETH_MAC_RX
ETH_MAC_PTP
21.56 20.07 17.75
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