Information

DocID022152 Rev 4 93/185
STM32F405xx, STM32F407xx Electrical characteristics
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Table 27. The MCU is placed
under the following conditions:
• At startup, all I/O pins are configured as analog pins by firmware.
• All peripherals are disabled unless otherwise mentioned
• The code is running from Flash memory and the Flash memory access time is equal to
5 wait states at 168 MHz.
• The code is running from Flash memory and the Flash memory access time is equal to
4 wait states at 144 MHz, and the power scale mode is set to 2.
• ART accelerator and Cache off.
• The given value is calculated by measuring the difference of current consumption
– with all peripherals clocked off
– with one peripheral clocked on (with only the clock applied)
• When the peripherals are enabled: HCLK is the system clock, f
PCLK1
= f
HCLK
/4, and
f
PCLK2
=f
HCLK
/2.
• The typical values are obtained for V
DD
= 3.3 V and T
A
= 25 °C, unless otherwise
specified.
Table 27. Peripheral current consumption
Peripheral
(1)
168 MHz 144 MHz Unit
AHB1
GPIO A 0.49 0.36
mA
GPIO B 0.45 0.33
GPIO C 0.45 0.34
GPIO D 0.45 0.34
GPIO E 0.47 0.35
GPIO F 0.45 0.33
GPIO G 0.44 0.33
GPIO H 0.45 0.34
GPIO I 0.44 0.33
OTG_HS + ULPI 4.57 3.55
CRC 0.07 0.06
BKPSRAM 0.11 0.08
DMA1 6.15 4.75
DMA2 6.24 4.8
ETH_MAC +
ETH_MAC_TX
ETH_MAC_RX
ETH_MAC_PTP
3.28 2.54
AHB2
OTG_FS 4.59 3.69
mA
DCMI 1.04 0.80