LPWA Module Series
BC66-TE-B User Guide
BC66-TE-B_User_Guide 20 / 27
The following figure shows the pin connection between BC66-TE-B and STM32-L476RG MCU.
POWER_EN
UART_MCU_RX
RESET_N
PWRKEY_N
PSM_EINT_N
UART_MCU_TX
GND
+5V
ADC0
GND
GND
BC66-TE-B
Morpho
Arduino
RI
+3.3V
+3.3V
Figure 10: Pin Connection between BC66-TE-B and STM32-L476RG MCU
4
PA7
D11
CN5-4
PSM_EINT_N
External interrupt for
PSM
5
PA6
D12
CN5-5
PWRKEY_N
Active high
6
PA5
D13
CN5-6
RESET_N
Active high
7
PA0
A0
CN8-1
RI
Ring indicator
8
+5V
+5V
CN6-5
+5V
5.0V power supply
9
GND
GND
CN5-7, CN6-6, 7
GND
GND
10
+3.3V
+3.3V
CN6-4
+3.3V
3.3V power supply
11
+3.3V
IOREF
CN6-2
+3.3V
3.3V power supply
