Electrical characteristics
STM32F405xx, STM32F407xx
Table 26. Switching output I/O current consumption
I/O toggling
frequency (fSW
Symbol
Parameter
Conditions(1)
Typ
Unit
)
2 MHz
0.02
8 MHz
25 MHz
50 MHz
60 MHz
2 MHz
0.14
0.51
0.86
1.30
0.10
0.38
1.18
2.47
2.86
0.17
0.66
1.70
2.65
3.48
0.23
0.95
3.20
4.69
8.06
0.30
1.22
3.90
8.82
VDD = 3.3 V(2)
C = CINT
8 MHz
VDD = 3.3 V
CEXT = 0 pF
25 MHz
50 MHz
60 MHz
2 MHz
C = CINT + CEXT+ CS
8 MHz
VDD = 3.3 V
I/O switching
current
IDDIO
mA
CEXT = 10 pF
25 MHz
50 MHz
60 MHz
2 MHz
C = CINT + CEXT+ CS
8 MHz
VDD = 3.3 V
CEXT = 22 pF
25 MHz
50 MHz
60 MHz
2 MHz
C = CINT + CEXT+ CS
8 MHz
VDD = 3.3 V
CEXT = 33 pF
25 MHz
50 MHz
60 MHz
C = CINT + CEXT+ CS
(3)
-
1. CS is the PCB board capacitance including the pad pin. CS = 7 pF (estimated value).
2. This test is performed by cutting the LQFP package pin (pad removal).
3. At 60 MHz, C maximum load is specified 30 pF.
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