Datasheet

(2)
This frequency of 1 MHz as a condition for VCAP parameters is given by design of internal
regulator.
(3)
To calculate P
Dmax
(T
A
), use the formula P
Dmax
= (T
Jmax
- T
A
)/Θ
JA
(see Thermal
characteristics ) with the value for T
Jmax
given in the current table and the value for Θ
JA
given in Thermal characteristics.
(4)
Refer to Thermal characteristics
Figure 11: f
CPUmax
versus V
DD
16
12
8
4
0
2.95
4.0
5.0
5.5
f
CPU
(MHz)
Functionality guaranteed
@T
A
-40 to 125 °C
Supply voltage
Functionality
not
guaranteed
in this area
Table 20: Operating conditions at power-up/power-down
UnitMaxTypMinConditionsParameterSymbol
µs/V∞2.0
(1)
V
DD
rise time ratet
VDD
∞2.0
(1)
V
DD
fall time rate
ms1.7
(1)
V
DD
risingReset releasedelayt
TEMP
V2.952.82.65Power-on reset
threshold
V
IT+
2.882.72.58Brown-out reset
threshold
V
IT-
mV70Brown-out reset
hysteresis
V
HYS(BOR)
(1)
Guaranteed by design, not tested in production.
DocID14771 Rev 1260/124
STM8S105xxElectrical characteristics