User's Manual

Preliminary Specification Number : SP-1SJ-295
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Preliminary & Confidential
< Specification may be changed by Murata without notice >
23 ANT A, I/O - Transmit / Receive antenna
24 GND Ground - Ground
25 GND Ground - Ground
26 MCU_BOOT0 I STM32L072_BOOT0 BOOT0 for MCU
27 PB5 I/O STM32L072_PB5
GPIO mode:PB5
LPTIM1_IN1
SPI1_MOSI
I2C1_SMBA
USART1_CK
USART5_RTS
COMP2_INP
28 PB3 I/O STM32L072_PB3
GPIO mode:PB3
COMP2_INM
SPI1_CLK
USART1_RTS
USART5_TX
29 PB4 I/O STM32L072_PB4
GPIO mode:PB4
COMP2_INP
SPI1_MISO
USART1_CTS
USART5_RX
I2C3_SDA
30 PB6 I/O STM32L072_PB6
GPIO mode:PB6
I2C1_SCL
USART1_TX
LPTIM1_ETR
COMP2_INP
31 PB7 I/O STM32L072_PB7
GPIO mode:PB7
I2C1_SDA
USART1_RX
LPTIM1_IN2
USART4_CTS
COMP2_INP
VREF_PVD_IN
32 PA14 I/O STM32L072_PA14
GPIO mode:PA14
SWCLK
USART2_TX
LPUART1_TX
33 PA13 I/O STM32L072_PA13
GPIO mode:PA13
SWDIO
USB_OE
LPUART1_RX
34 GND Ground - Ground
35 VDD_USB Power STM32L072_VDD_USB Power supply for MCU USB Interface
36 PA12 I/O STM32L072_PA12
GPIO mode:PA12(power supply by
VDD_USB)
USB_DP
SPI1_MOSI
USART1_RTS
COMP2_OUT
37 PA11 I/O STM32L072_PA11
GPIO mode:PA11(power supply by
VDD_USB)