8/19
Doc ID TBD Rev 0.8
Rev 0.1
www.st.com
2.7
Pin placement
Figure 1. Pin placement
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2.8
Hardware block diagram
Figure 2. Hardware block diagram
Spirit1
Filter/Balun
STM32L
Microcontroller
SPI
GPIO
UART
XTAL
1.8V to 3.6V Supply
GPIO
TX
RXp
RXn
SMPS