
Electrical parameters
STM8L162R8, STM8L162M8
Doc ID 17959 Rev 1
Figure 24.
Typical NRST pull-up current Ipu vs VDD
The reset network shown in
Figure 25 protects the device against parasitic resets. The user
must ensure that the level on the NRST pin can go below the VIL max. level specified in
Table 40. Otherwise the reset is not taken into account internally. For power consumption-
sensitive applications, the capacity of the external reset capacitor can be reduced to limit the
charge/discharge current. If the NRST signal is used to reset the external circuitry, the user
must pay attention to the charge/discharge time of the external capacitor to meet the reset
timing conditions of the external devices. The minimum recommended capacity is 10 nF.
Figure 25. Recommended NRST pin
configuration
0.1
μF
EXTERNAL
RESET
CIRCUIT
STM8L
Filter
RPU
VDD
INTERNAL RESET
RSTIN