Data Sheet

Page 18
nRF51822 Product Specification v3.1
Table 3 Ball functions for CEAA and CFAC
F1
DEC2
Power Power supply decoupling.
F2
P0.19
Digital I/O General purpose I/O.
F3
N.C.
No Connection Must be soldered to PCB.
F7
N.C.
No Connection Must be soldered to PCB.
F8
P0.04
AIN5
Digital I/O
Analog input
General purpose I/O.
ADC input 5.
F9
P0.03
AIN4
Digital I/O
Analog input
General purpose I/O.
ADC input 4.
G1
P0.20
Digital I/O General purpose I/O.
G2
P0.17
Digital I/O General purpose I/O.
G3
N.C.
No Connection Must be soldered to PCB.
G4
N.C.
No Connection Must be soldered to PCB.
G5
N.C.
No Connection Must be soldered to PCB.
G6
VSS
Power Ground (0 V).
G7
N.C.
No Connection Must be soldered to PCB.
G8
P0.06
AIN7
AREF1
Digital I/O
Analog input
Analog input
General purpose I/O.
ADC input 7.
ADC Reference voltage.
G9
VSS
Power Ground (0 V).
H1
P0.18
Digital I/O General purpose I/O.
H2
SWDCLK
Digital input Hardware debug and flash programming I/O.
H3
VSS
Power Ground (0 V).
H4
P0.14
Digital I/O General purpose I/O.
H5
P0.13
Digital I/O General purpose I/O.
H6
P0.10
Digital I/O General purpose I/O.
H7
P0.07
Digital I/O General purpose I/O.
H8
VDD
Power Power supply.
H9
P0.05
AIN6
Digital I/O
Analog input
General purpose I/O.
ADC input 6.
J2
SWDIO/
nRESET
Digital I/O
System reset (active low). Also Hardware debug and flash
programming I/O.
J3
P0.16
Digital I/O General purpose I/O.
J4
P0.15
Digital I/O General purpose I/O.
J5
P0.12
Digital I/O General purpose I/O.
J6
P0.11
Digital I/O General purpose I/O.
J7
P0.09
Digital I/O General purpose I/O.
J8
P0.08
Digital I/O General purpose I/O.
Ball Name Function Description