ShenZhenGrassWonderCO. LTD. NRF51822 Manuale Utente
9
Pin No.
Name
Pin function
Description
(23)
P0.06
Digital I/O
General-purpose digital I/O
AIN7
Analog input ADC input 7
AREF1
Analog input ADC Reference voltage
(24)
P0.07
Digital I/O
General-purpose digital I/O
(25)
GND
Ground
The pad must be connected to a solid ground plane
(26)
P0.08
Digital I/O
General-purpose digital I/O
(27)
P0.09
Digital I/O
General-purpose digital I/O
(28)
P0.10
Digital I/O
General-purpose digital I/O
(29)
P0.11
Digital I/O
General-purpose digital I/O
(30)
P0.12
Digital I/O
General-purpose digital I/O
(31)
P0.13
Digital I/O
General-purpose digital I/O
(32)
P0.14
Digital I/O
General-purpose digital I/O
(33)
P0.15
Digital I/O
General-purpose digital I/O
(34)
P0.16
Digital I/O
General-purpose digital I/O
(35)
SWDIO/RESET
Digital I/O
System reset(active low).Also HW debug and flash
Programming
(36)
SWDCLK
Digital input HW debug and flash programming.
(37)
P0.17
Digital I/O
General-purpose digital I/O
(38)
P0.18
Digital I/O
General-purpose digital I/O
(39)
P0.19
Digital I/O
General-purpose digital I/O
(40)
P0.20
Digital I/O
General-purpose digital I/O
(41)
DEC2
Power
Power supply decoupling. Low voltage mode VCC
(42)
GND
Ground
The pad must be connected to a solid ground plane
1
Digital I/O pad with 5mA source/sink capability.
3. Main Chip Solution
RF IC
Crystal Frequency
Nordic NRF51822/QFN48
16MHZ