Datasheet

DocID14771 Rev 15 55/121
STM8S105x4/6 Electrical characteristics
90
Figure 11. f
CPUmax
versus V
DD
T
A
Ambient temperature for suffix
6 version
Maximum power
dissipation
-40 85
°C
T
A
Ambient temperature for suffix
3 version
Maximum power
dissipation
-40 125
T
J
Junction temperature range
Suffix 6 version -40 105
Suffix 3 version -40 130
1. Care should be taken when selecting the capacitor, due to its tolerance, as well as the parameter
dependency on temperature, DC bias and frequency in addition to other factors. The parameter maximum
value must be respected for the full application range.
2. This frequency of 1 MHz as a condition for V
CAP
parameters is given by design of internal regulator.
3. To calculate P
Dmax
(T
A
), use the formula P
Dmax
=(T
Jmax
- T
A
)/
JA
(see Section 12: Thermal characteristics)
with the value for T
Jmax
given in the previous table and the value for 
JA
given in Section 12: Thermal
characteristics.
4. See Section 12: Thermal characteristics.
Table 19. Operating conditions at power-up/power-down
Symbol Parameter Conditions Min
Typ
Max Unit
t
VDD
V
DD
rise time rate -
2
(1)
- 
µs/V
V
DD
fall time rate -
2
(1)
- 
t
TEMP
Reset release delay V
DD
rising - - 1.7
(1)
ms
Table 18. General operating conditions (continued)
Symbol Parameter Conditions Min Max Unit
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