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Page 14
nRF51802 Product Specification v1.2
Table 2 Pin functions QFN32 package
28
P0.21 Digital I/O General purpose I/O pin.
29
P0.26
AIN0
XL2
Digital I/O
Analog input
Analog output
General purpose I/O pin.
ADC/LPCOMP input 0.
Connection for 32.768 kHz crystal.
30
P0.27
AIN1
XL1
Digital I/O
Analog input
Analog input
General purpose I/O pin.
ADC/LPCOMP input 1.
Connection for 32.768 kHz crystal or external 32.768 kHz
clock reference.
31
P0.28 Digital I/O General purpose I/O pin.
32
P0.29 Digital I/O General purpose I/O pin.
1. The exposed center pad of the QFN32 package must be connected to ground for proper device operation.
Pin Pin name Pin function Description