Datasheet

Table 17: Current characteristics
Unit
Max
(1)
RatingsSymbol
mA
100
Total current into V
DD
power lines (source)
(2)
I
VDD
80
Total current out of V
SS
ground lines (sink)
(2)
I
VSS
20
Output current sunk by any I/O and control pin
I
IO
- 20
Output current source by any I/Os and control pin
± 4
Injected current on NRST pin
I
INJ(PIN)
(3) (4)
± 4
Injected current on OSCIN pin
± 4
Injected current on any other pin
(5)
± 20
Total injected current (sum of all I/O and control pins)
(5)
ΣI
INJ(PIN)
(3)
(1)
Data based on characterization results, not tested in production.
(2)
All power (V
DD
) and ground (V
SS
) pins must always be connected to the external supply.
(3)
I
INJ(PIN)
must never be exceeded. This is implicitly insured if V
IN
maximum is respected. If V
IN
maximum
cannot be respected, the injection current must be limited externally to the I
INJ(PIN)
value. A positive
injection is induced by V
IN
>V
DD
while a negative injection is induced by V
IN
<V
SS
. For true open-drain
pads, there is no positive injection current, and the corresponding V
IN
maximum must always be respected
(4)
ADC accuracy vs. negative injection current: Injecting negative current on any of the analog input pins
should be avoided as this significantly reduces the accuracy of the conversion being performed on
another analog input. It is recommended to add a Schottky diode (pin to ground) to standard analog pins
which may potentially inject negative current. Any positive injection current within the limits specified for
I
INJ(PIN)
and ΣI
INJ(PIN)
in the I/O port pin characteristics section does not affect the ADC accuracy.
(5)
When several inputs are submitted to a current injection, the maximum ΣI
INJ(PIN)
is the absolute sum
of the positive and negative injected currents (instantaneous values). These results are based on
characterization with ΣI
INJ(PIN)
maximum current injection on four I/O port pins of the device.
Table 18: Thermal characteristics
UnitValueRatingsSymbol
°C
-65 to +150Storage temperature rangeT
STG
150Maximum junction temperatureT
J
DocID15441 Rev 952/117
STM8S103K3 STM8S103F3 STM8S103F2Electrical characteristics