Product Info

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4
Pin
Name
Description
Recommend usage
Pin1 P0.09/NFC1 Digital I/O/ NFC input Standard drive, low frequency I/O
Pin2
P0.10/NFC2
Digital I/O/ NFC input
Standard drive, low frequency I/O
Pin3
P0.18/RESET
Digital I/O/RESET
Pin4 P1.02 Digital I/O Standard drive, low frequency I/O
Pin5 SWDCLK HW debug and programming
Pin6 SWDIO HW debug and programming
Pin7 P1.00 Digital I/O
Pin8 P0.24 Digital I/O
Pin9 P0.22 Digital I/O
Pin10
P0.20
Digital I/O
Pin11
P0.17
Digital I/O
Pin12
P0.15
Digital I/O
Pin13
P0.13
Digital I/O
Pin14 P0.16 Digital I/O
Pin15 P0.14 Digital I/O
Pin16 P0.12 Digital I/O
Pin17 P1.09 Digital I/O
Pin18 P0.08 Digital I/O
Pin19 P0.06 Digital I/O
Pin20
P0.04/AIN2
Digital I/O/Analog input 2
Pin21 P0.26 Digital I/O
Pin22 NC NC
Pin23
P0.21
Digital I/O
Pin24 NC NC
Pin25 P0.01/XL2 Reserve for 32.768KHz use
Pin26 P0.00/XL1 Reserve for 32.768KHz use
Pin27 P0.31/AIN7 Digital I/O/Analog input 7 Standard drive, low frequency I/O
Pin28 P0.29/AIN5 Digital I/O/Analog input 5 Standard drive, low frequency I/O
Pin29 P0.02/AIN0 Digital I/O/Analog input 0 Standard drive, low frequency I/O
Pin30
P0.19
Digital I/O
Standard drive, low frequency I/O
Pin31 P1.05 Digital I/O Standard drive, low frequency I/O
Pin32
P0.25
Digital I/O
Standard drive, low frequency I/O
Pin33
P0.03/AIN1
Digital I/O/Analog input 1
Standard drive, low frequency I/O
Pin34
VDD
Power Supply
Pin35 P1.03 Digital I/O Standard drive, low frequency I/O
Pin36 GND Ground
Pin37 P1.07 Digital I/O Standard drive, low frequency I/O
Pin38 P1.06 Digital I/O Standard drive, low frequency I/O
Pin39 P1.04 Digital I/O Standard drive, low frequency I/O
Pin40 NC NC
Pin41
NC
NC
Pin42
P1.01
Digital I/O
Standard drive, low frequency I/O
Pin43
VBUS
Power
5 V input for USB 3.3 V regulator