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Table of Contents
NUCLEO-L073RZ
32 MHz STM32L073RZ Cortex-M0+ with 192 KB flash and 20 KB RAM.
Pinout
PC10 USART4_TX PC11 USART4_RX CN3 STLINK RX CN3 STLINK TX
Solder bridges
USART
Default for standalone NUCLEO-L073RZ
SB13 and SB14 ON, SB62 and SB63 OFF
PA2 USART2_TX ST-LINK RX PA3 USART2_RX ST-LINK TX
Default for NUCLEO-L073RZ with I-NUCLEO-LRWAN1
SB13 and SB14 OFF, SB62 and SB63 ON
PA2 USART2_TX ARD D1 TX PA3 USART2_RX ARD D0 RX
ST-LINK
Removing the two jumpers the ST-LINK interface can be used to program another board such as the I-NUCLEO-LRWAN1 daughterboard.
1 VDD TARGET 2 SWCLK 3 GND 4 SWDIO 5 NRST 6 SWO (RESERVED)
