Datasheet

Figure 38: Typical NRST pull-up resistance vs V
DD
@ 4 temperatures
Figure 39: Typical NRST pull-up current vs V
DD
@ 4 temperatures
The reset network shown in the following figure protects the device against parasitic resets.
The user must ensure that the level on the NRST pin can go below V
IL(NRST)
max. (see Table
38: I/O static characteristics ), otherwise the reset is not taken into account internally.
For power consumption sensitive applications, the external reset capacitor value can be
reduced to limit the charge/discharge current. If NRST signal is used to reset external circuitry,
attention must be taken to the charge/discharge time of the external capacitor to fulfill the
external devices reset timing conditions. Minimum recommended capacity is 100 nF.
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STM8S105xxElectrical characteristics