TN0235

FAAQs and answers

Doc ID 17218 Rev 1

5/9

2.6

What is the bill of material?

As shown in Figure 1, external component count is low. One sampling capacitor connected

capacitors are necessary to connect to the power supply.

To compensate for the exposure of the electrode pad to electro-static discharges (ESD), an

Figure 1.

External components of the STM8T141 device

2.7

What is the proximity range?

The STM8T141 is capable of short range proximity detection. This range varies from a few

centimeters up to 10/15 cms but, it is the result of many factors.

A dedicated application note (AN3150) is available to help designers understand which

factors influence detection sensitivity. Examples include electrode shape and size, system

ground, panel construction, surrounding metallic objects, and power supply.

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