Datasheet

Electrical characteristics STM32F411xC STM32F411xE
78/149 DocID026289 Rev 6
Table 32. Switching output I/O current consumption
Symbol Parameter Conditions
(1)
1. CS is the PCB board capacitance including the pad pin. CS = 7 pF (estimated value).
I/O toggling
frequency (f
SW
)
Typ Unit
IDDIO
I/O switching
current
V
DD
= 3.3 V
C = C
INT
2 MHz 0.05
mA
8 MHz 0.15
25 MHz 0.45
50 MHz 0.85
60 MHz 1.00
84 MHz 1.40
90 MHz 1.67
V
DD
= 3.3 V
C
EXT
= 0 pF
C = C
INT
+ C
EXT
+ C
S
2 MHz 0.10
8 MHz 0.35
25 MHz 1.05
50 MHz 2.20
60 MHz 2.40
84 MHz 3.55
90 MHz 4.23
V
DD
= 3.3 V
C
EXT
=10 pF
C = C
INT
+ C
EXT
+ C
S
2 MHz 0.20
8 MHz 0.65
25 MHz 1.85
50 MHz 2.45
60 MHz 4.70
84 MHz 8.80
90 MHz 10.47
V
DD
= 3.3 V
C
EXT
= 22 pF
C = C
INT
+ C
EXT
+ C
S
2 MHz 0.25
8 MHz 1.00
25 MHz 3.45
50 MHz 7.15
60 MHz 11.55
V
DD
= 3.3 V
C
EXT
= 33 pF
C = C
INT
+ C
EXT
+ C
S
2 MHz 0.32
8 MHz 1.27
25 MHz 3.88
50 MHz 12.34
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