User's Manual

Page3
Recommended Operation Conditions
Operating Condition Min Typ Max Unit
Operating temperature range -30 - 85 °C
Battery (VDD_BAT) operation 1.8 - 3.6 V
I/O supply voltage (VDD_IO) 1.2 - 3.6 V
AIO
Input Voltage Levels Min Typ Max Unit
Input voltage 0 - 1.3 V
Pin Definition
Pin No Name Type Function Remark
1 GND GND Ground
2 RF RF Bluetooth transmitter/receiver
3 GND GND Ground
4 PIO4 Bi-directional
Programmable Input/Output
Line
SPI serial flash chip select
5 AIO1 Bi-directional
Analogue programmable
input/output line
6 AIO0 Bi-directional
Analogue programmable
input/output line
7 PIO0 Bi-directional
Programmable Input/Output
Line 0
UART Data Output (TX)
8 PIO1 Bi-directional
Programmable Input/Output
Line 1
UART Data Input (RX)
9 PIO5 Bi-directional
Programmable Input/Output
Line 5