Datasheet

Electrical characteristics STM32F745xx STM32F746xx
104/227 DocID027590 Rev 4
Typical and maximum current consumption
The MCU is placed under the following conditions:
• All I/O pins are in input mode with a static value at V
DD
or V
SS
(no load).
• All peripherals are disabled except if it is explicitly mentioned.
• The Flash memory access time is adjusted both to f
HCLK
frequency and V
DD
range
(see Table 18: Limitations depending on the operating power supply range).
• When the regulator is ON, the voltage scaling and over-drive mode are adjusted to
f
HCLK
frequency as follows:
– Scale 3 for f
HCLK
≤ 144 MHz
– Scale 2 for 144 MHz < f
HCLK
≤ 168 MHz
– Scale 1 for 168 MHz < f
HCLK
≤ 216 MHz. The over-drive is only ON at 216 MHz.
• When the regulator is OFF, the V12 is provided externally as described in Table 17:
General operating conditions:
• The system clock is HCLK, f
PCLK1
= f
HCLK
/4, and f
PCLK2
= f
HCLK
/2.
• External clock frequency is 25 MHz and PLL is ON when f
HCLK
is higher than 25 MHz.
• The typical current consumption values are obtained for 1.7 V ≤
V
DD
≤ 3.6 V voltage
range and for T
A
= 25 °C unless otherwise specified.
• The maximum values are obtained for 1.7 V ≤
V
DD
≤ 3.6 V voltage range and a
maximum ambient temperature (T
A
) unless otherwise specified.
• For the voltage range 1.7 V ≤
V
DD
≤ 3.6 V, the maximum frequency is 180 MHz.
Table 24. Typical and maximum current consumption in Run mode, code with data processing
running from ITCM RAM, regulator ON
Symbol Parameter Conditions f
HCLK
(MHz) Typ
Max
(1)
Unit
T
A
= 25 °C T
A
= 85 °C T
A
= 105 °C
I
DD
Supply
current in
RUN mode
All peripherals
enabled
(2)(3)
216 178 208
(4)
230
(4)
-
mA
200 165 193 212 230
180 147 171
(4)
185
(4)
198
(4)
168 130 152 164 177
144 100 116 127 137
60 44 52 63 73
25 21 25 36 46
All peripherals
disabled
(3)
216 102 120
(4)
141
(4)
-
200 95 111 131 149
180 84 98
(4)
112
(4)
125
(4)
168 75 87 100 112
144 58 67 77 88
60 25 30 41 51
25 12 15 25 36
1. Guaranteed by characterization results.
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