Adapter board layout and pin description

UM0531

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Adapter board layout and pin description

A photograph of the adapter board is shown in Figure 1, together with an illustration of the

top silk-screen layer and the board layout.

Figure 1.

Adapter board photograph, top silk-screen layer and board layout

In addition to the MEMS sensor, the adapter board includes two filtering capacitors (10 µF

and 100 nF, respectively) on the analog Vdd power supply line.

The pin description of the STEVAL-MKI015V1 is provided in Table 1.

For further details about the usage of the LIS344ALH 3-axis accelerometer, please refer to

the device datasheet.

Table 1.

STEVAL-MKI015V1 pin description

Adapter board pin #

Pin name

Function

1

Vdd

Power supply

2-3, 5, 7, 9-12, 14-15, 17-24

NC

Not connected

4

Voutx

Output voltage X channel

6

Vouty

Output voltage Y channel

8

Voutz

Output voltage Z channel

13

GND

0V supply

16

ST

Self-test (logic 0: normal mode; logic 1: self-test)

17

FS

Full scale (logic 0: normal mode; logic 1: self-test)

18

PD

Power down (logic 0: normal mode; logic 1: self-test)

Pin #1