Datasheet

DocID025936 Rev 8 87/143
STM32L052x6 STM32L052x8 Electrical characteristics
112
Figure 23. V
IH
/V
IL
versus VDD (CMOS I/Os)
Figure 24. 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 60.
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 23).
• 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 23).
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