ST STM32F103x6 Manual page 32

Electrical characteristics
Figure 15. Unused I/O pin connection
Output driving current
The GPIOs (general purpose input/outputs) can sink or source up to +/-8 mA, and sink
+20 mA (with a relaxed V
In the user application, the number of I/O pins which can drive current must be limited to
respect the absolute maximum rating specified in
The sum of the currents sourced by all the I/Os on V
consumption of the MCU sourced on V
I
VDD
The sum of the currents sunk by all the I/Os on V
consumption of the MCU sunk on V
I
VSS
44/67
V DD
1 0 kΩ
1 0 kΩ
).
OL
(see Table 5).
(see Table 5).
STM32F103xx
UNU SED I/O PORT
STM32F103xx
UNU SED I/O PORT
Section 5.2:
plus the maximum Run
DD,
cannot exceed the absolute maximum rating
DD,
plus the maximum Run
SS
cannot exceed the absolute maximum rating
SS
STM32F103xx
ai14147b