Datasheet

Electrical characteristics STM8S105x4/6
54/121 DocID14771 Rev 15
10.3 Operating conditions
The device must be used in operating conditions that respect the parameters described in
the table below. In addition, full account must be taken of all physical capacitor
characteristics and tolerances.
3. I/O pins used simultaneously for high current source/sink must be uniformly spaced around the package
between the VDDIO/VSSIO pins.
4. I
INJ(PIN)
must never be exceeded. This condition 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 allowed and the corresponding V
IN
maximum must always
be respected.
5. Negative injection disturbs the analog performance of the device. See note in Section: TIM2, TIM3 - 16-bit
general purpose timers.
6. 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 17. Thermal characteristics
Symbol Ratings Value Unit
T
STG
Storage temperature range 65 to 150
°C
T
J
Maximum junction temperature 150
Table 18. General operating conditions
Symbol Parameter Conditions Min Max Unit
f
CPU
Internal CPU clock frequency - 0 16 MHz
V
DD/
V
DDIO
Standard operating voltage - 2.95 5.5 V
V
CAP
(1)
C
EXT
: capacitance of external
capacitor
- 470 3300 nF
ESR of external capacitor
at 1 MHz
(2)
-0.3
Ω
ESL of external capacitor - 15 nH
P
D
(3)
Power dissipation at T
A
= 85 °C
for suffix 6 or T
A
= 125° C for
suffix 3
44- and 48-pin
devices, with output
on eight standard
ports, two high sink
ports and two open
drain ports
simultaneously
(4)
- 443
mW
32-pin package, with
output on eight
standard ports and
two high sink ports
simultaneously
(4)
- 360