Hardware

AN3245

8/19

Doc ID 17747 Rev 1

Figure 7.

GPIO open drain configuration (output high)

1.4

Keypad controller (KPC)

The integrated keypad controller (KPC) in the STMPE1801 is configurable to the following 3

types of keys:

1.

Up to 10x8 (80) matrix keys

2.

Up to 8 special function keys

3.

Up to 4 dedicated keys