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STM32L431xx Electrical characteristics
168
Table 19. Current characteristics
Symbol Ratings Max Unit
IV
DD
Total current into sum of all V
DD
power lines (source)
(1)
140
mA
IV
SS
Total current out of sum of all V
SS
ground lines (sink)
(1)
140
IV
DD(PIN)
Maximum current into each V
DD
power pin (source)
(1)
100
IV
SS(PIN)
Maximum current out of each V
SS
ground pin (sink)
(1)
100
I
IO(PIN)
Output current sunk by any I/O and control pin except FT_f 20
Output current sunk by any FT_f pin 20
Output current sourced by any I/O and control pin 20
I
IO(PIN)
Total output current sunk by sum of all I/Os and control pins
(2)
100
Total output current sourced by sum of all I/Os and control pins
(2)
100
I
INJ(PIN)
(3)
Injected current on FT_xxx, TT_xx, RST and B pins, except PA4,
PA5
-5/+0
(4)
Injected current on PA4, PA5 -5/0
|I
INJ(PIN)
|
Total injected current (sum of all I/Os and control pins)
(5)
25
1. All main power (V
DD
, V
DDA
, V
BAT
) and ground (V
SS
, V
SSA
) pins must always be connected to the external power supplies,
in the permitted range.
2. This current consumption must be correctly distributed over all I/Os and control pins. The total output current must not be
sunk/sourced between two consecutive power supply pins referring to high pin count QFP packages.
3. Positive injection (when V
IN
> V
DDIOx
) is not possible on these I/Os and does not occur for input voltages lower than the
specified maximum value.
4. A negative injection is induced by V
IN
< V
SS
. I
INJ(PIN)
must never be exceeded. Refer also to Table 18: Voltage
characteristics for the maximum allowed input voltage values.
5. When several inputs are submitted to a current injection, the maximum
|
I
INJ(PIN)
|
is the absolute sum of the negative
injected currents (instantaneous values).
Table 20. Thermal characteristics
Symbol Ratings Value Unit
T
STG
Storage temperature range –65 to +150 °C
T
J
Maximum junction temperature 150 °C
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