Datasheet

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STM8S105x4/6 Electrical characteristics
90
10.2 Absolute maximum ratings
Stresses above those listed as ‘absolute maximum ratings’ may cause permanent damage
to the device. This is a stress rating only and functional operation of the device under these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability.
Table 15. Voltage characteristics
Symbol Ratings Min Max Unit
V
DDx
- V
SS
Supply voltage (including V
DDA and
V
DDIO
)
(1)
1. All power (V
DD
) and ground (V
SS
) pins must always be connected to the external power supply
-0.3 6.5 V
V
IN
Input voltage on true open drain pins (PE1, PE2)
(2)
2. 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
V
SS
- 0.3
6.5
V
Input voltage on any other pin
(2)
V
SS
- 0.3 V
DD
+ 0.3
|V
DDx
- V
DD
| Variations between different power pins - 50
mV
|V
SSx
- V
SS
| Variations between all the different ground pins - 50
V
ESD
Electrostatic discharge voltage
see Absolute maximum ratings
(electrical sensitivity) on
page 89
Table 16. Current characteristics
Symbol Ratings
Max.
(1)
1. Data based on characterization results, not tested in production.
Unit
I
VDD
Total current into V
DD
power lines (source)
(2)
2. All power (V
DD,
V
DDIO
, V
DDA
) and ground (V
SS,
V
SSIO,
V
SSA
) pins must always be connected to the external
supply.
100 mA
I
VSS
Total current out of V
SS
ground lines (sink)
(1)
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
ΣI
IO
Total output current sourced (sum of all I/O and control pins)
for devices with two V
DDIO
pins
(3)
200
Total output current sourced (sum of all I/O and control pins)
for devices with one V
DDIO
pin
(3)
100
Total output current sunk (sum of all I/O and control pins) for
devices with two V
SSIO
pins
(3)
160
Total output current sunk (sum of all I/O and control pins) for
devices with one V
SSIO
pin
(3)
80
I
INJ(PIN)
(4) (5)
Injected current on NRST pin ±4
Injected current on OSCIN pin ±4
Injected current on any other pin
(6)
±4
ΣI
INJ(PIN)
(4)
Total injected current (sum of all I/O and control pins)
(6)
±20