Datasheet

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STM8S001J3 Electrical characteristics
75
Table 15. Current characteristics
Symbol Ratings Max.
(1)
1. Guaranteed by characterization results.
Unit
I
VDD
Total current into V
DD
power lines (source)
(2)
2. All power (V
DD
) and ground (V
SS
) pins must always be connected to the external supply.
100
mA
I
VSS
Total current out of V
SS
ground lines (sink)
(2)
80
I
IO
Output current sunk by any I/O and control pin 20
Output current source by any I/Os and control pin -20
I
INJ(PIN)
(3)(4)
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.
Injected current on OSCIN pin ±4
Injected current on any other pin
(5)
5. When several inputs are submitted to a current injection, the maximum Σ I
INJ(PIN)
is the absolute sum of the
positive and negative injected currents (instantaneous values). These results are based on characterization
with
Σ I
INJ(PIN)
maximum current injection on four I/O port pins of the device.
±4
ΣI
INJ(PIN)
(3)
Total injected current (sum of all I/O and control pins)
(5)
±20
Table 16. Thermal characteristics
Symbol Ratings Value Unit
T
STG
Storage temperature range -65 to 150
°C
T
J
Maximum junction temperature 150
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