STM32F745XX Datasheet, PDF (117/227 Pages) STMicroelectronics – ARM-based Cortex-M7 32b MCU+FPU, 462DMIPS, up to 1MB Flash/320+16+ 4KB RAM, USB OTG HS/FS, ethernet, 18 TIMs, 3 ADCs, 25 com itf, cam & LCD

STM32F745xx STM32F746xx
Electrical characteristics
Table 34. Switching output I/O current consumption⁽¹⁾ (continued)
Symbol
Parameter
Conditions
I/O toggling
frequency (fsw)
MHz
Typ
V_DD = 3.3 V
Typ
V_DD = 1.8 V
Unit
2
8
25
C_EXT = 22 pF
C = C_INT + C_S + C_EXT
50
60
I_DDIO
I/O switching
Current
84
90
2
8
C_EXT = 33 pF
C = C_INT + C_S + C_EXT
25
50
60
0.3
1.0
3.5
5.9
10.0
19.12
19.6
0.3
1.3
3.5
10.26
16.53
0.1
0.5
1.6
4.2
4.4
5.8
mA
-
0.2
0.7
2.3
5.19
-
1. CINT + C_S, PCB board capacitance including the pad pin is estimated to15 pF.
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/L1-cache 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 = 216 MHz (Scale 1 + over-drive ON), f_HCLK = 168 MHz (Scale 2),
f_HCLK = 144 MHz (Scale 3)
• Ambient operating temperature is 25 °C and V_DD=3.3 V.
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