AN3029 datasheet(16/42 Pages) STMICROELECTRONICS

Part #	AN3029

Description	Getting started with STM8L and STM8AL

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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16 / 42 page

Reset control

AN3029

16/42

DocID16139 Rev 5

5.2

Hardware reset implementation

The STM8L and STM8AL do not require an external reset circuit to power-up correctly. Only

a pull-down capacitor is recommended (see Figure 7). However, charging/discharging the

pull-down capacitor through an internal resistor has a negative influence on the device

power consumption. Therefore, the recommended capacitor value of 100 nF can be

reduced down to 10 nF to limit such power consumption.

The STM8L101xx reset state is released 1 ms after the POR value (1.35 V to 1.65 V) is

reached. At this time, VDD should be in the 1.65 V to 3.6 V range.

For medium density devices and medium+ and high density devices operating from 1.8 V at

power-on: the reset state is released 1 ms after the BOR minimum value (~1.75 V) is

reached.

AN3029 Datasheet(PDF) 16 Page - STMicroelectronics