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Electrical characteristics STM32WLE5J8/JB/JC
104/135 DS13105 Rev 4
All I/Os are CMOS- and TTL-compliant (no software configuration required). Their
characteristics cover more than the strict CMOS-technology or TTL parameters, as shown
in the figure below.
Figure 18. I/O input characteristics - V
IL
and V
IH
on all I/Os except BOOT0
Output driving current
The GPIOs can sink or source up to ±8 mA, and sink or source up to ± 20 mA (with a
relaxed V
OL
/V
OH
).
In the user application, the number of I/O pins that can drive current must be limited to
respect the absolute maximum rating specified in Section 5.2: Absolute maximum ratings.
The sum of the currents sourced by all the I/Os on V
DD
, plus the maximum consumption of
the MCU sourced on V
DD,
cannot exceed the absolute maximum rating I
VDD
(see
Table 21: Voltage characteristics).
The sum of the currents sunk by all the I/Os on V
SS
, plus the maximum consumption of the
MCU sunk on V
SS
, cannot exceed the absolute maximum rating I
VSS
(see Table 21:
Voltage characteristics).
Output voltage levels
Unless otherwise specified, the parameters given in the table below are derived from tests
performed under the ambient temperature and supply voltage conditions summarized in
Table 25: General operating conditions. All I/Os are CMOS- and TTL-compliant (FT or TT
unless otherwise specified).
MSv64346V1
V
IH
spec 70 %
V
IL
spec 30 %
V
IH
rule
V
IL
rule
V
IH
spec TTL
V
IL
spec TTL