Datasheet

Electrical characteristics STM32F427xx STM32F429xx
108/239 DocID024030 Rev 10
Additional current consumption
The MCU is placed under the following conditions:
• All I/O pins are configured in analog mode.
• The Flash memory access time is adjusted to fHCLK frequency.
• The voltage scaling is adjusted to fHCLK frequency as follows:
– Scale 3 for f
HCLK
≤ 120 MHz,
– Scale 2 for 120 MHz < f
HCLK
≤ 144 MHz
– Scale 1 for 144 MHz < f
HCLK
≤ 180 MHz. The over-drive is only ON at 180 MHz.
• The system clock is HCLK, f
PCLK1
= f
HCLK
/4, and f
PCLK2
= f
HCLK
/2.
• HSE crystal clock frequency is 25 MHz.
• When the regulator is OFF, V12 is provided externally as described in Table 17:
General operating conditions
• T
A
= 25 °C .
Table 30. Typical current consumption in Run mode, code with data processing running from
Flash memory or RAM, regulator ON (ART accelerator enabled except prefetch),
V
DD
=1.7 V
(1)
Symbol Parameter Conditions f
HCLK
(MHz) Typ Unit
I
DD
Supply current in
RUN mode from
V
DD
supply
All Peripheral
enabled
168 88.2
mA
150 74.3
144 71.3
120 52.9
90 42.6
60 28.6
30 15.7
25 12.3
All Peripheral
disabled
168 40.6
150 30.6
144 32.6
120 24.7
90 19.7
60 13.6
30 7.7
25 6.7
1. When peripherals are enabled, the power consumption corresponding to the analog part of the peripherls (such as ADC, or
DAC) is not included.
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