Datasheet

DS10668 Rev 6 81/126
STM32L031x4/6 Electrical characteristics
96
Figure 25. V
IH
/V
IL
versus VDD (CMOS I/Os)
Figure 26. V
IH
/V
IL
versus VDD (TTL I/Os)
Output driving current
The GPIOs (general purpose input/outputs) can sink or source up to ±8 mA, and sink or
source up to ±15 mA with the non-standard V
OL
/V
OH
specifications given in Table 54.
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 Section 6.2:
• The sum of the currents sourced by all the I/Os on V
DD,
plus the maximum Run
consumption of the MCU sourced on V
DD,
cannot exceed the absolute maximum rating
I
VDD(Σ)
(see Table 18).
• The sum of the currents sunk by all the I/Os on V
SS
plus the maximum Run
consumption of the MCU sunk on V
SS
cannot exceed the absolute maximum rating
I
VSS(Σ)
(see Table 18).
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