ST NUCLEO-WL55JC STM32WL User Manual

Introduction
The NUCLEO-WL55JC STM32WL Nucleo-64 board, based on the MB1389 reference board (NUCLEO-WL55JC1 and
NUCLEO-WL55JC2 order codes), provides an affordable and flexible way for users to try out new concepts and build prototypes
with the STM32WL Series microcontroller, choosing from the various combinations of performance, power consumption, and
features.
The ARDUINO
®
Uno V3 connectivity support and the ST morpho headers provide an easy means of expanding the functionality
of the STM32WL Nucleo open development platform with a wide choice of specialized shields.
The STM32WL Nucleo-64 board does not require any separate probe as it integrates the STLINK-V3E debugger and
programmer.
The STM32WL Nucleo-64 board is provided with the STM32WL comprehensive software HAL library and various packaged
software examples available with the STM32CubeWL MCU Package.
Figure 1. NUCLEO-WL55JC top view
Figure 2. NUCLEO-WL55JC bottom view
Pictures are not contractual.
STM32WL Nucleo-64 board (MB1389)
UM2592
User manual
UM2592 - Rev 1 - November 2020
For further information contact your local STMicroelectronics sales office.
www.st.com

ST NUCLEO-WL55JC STM32WL Specifications

General

Microcontroller	STM32WL55JC
Flash Memory	256 KB
RAM/SRAM	64 KB
Operating Frequency	Up to 48 MHz
On-board debugger	ST-LINK/V2-1
ADC	12-bit, up to 16 channels
Wireless Technology/Radio	LoRa, (G)FSK, (G)MSK, BPSK
Operating Voltage	1.7 V to 3.6 V
DAC	12-bit
Communication Interfaces	SPI, I2C, USART
Operating Temperature	-40 °C to +85 °C

Summary

Introduction

Features

Ordering information

Codification

Explanation of product order code structure.

Development environment

System requirements

Specifies operating systems and hardware for development.

Development toolchains

Lists supported software development tools.

Demonstration software

Information about preloaded demo software and its source.

Conventions

Quick start

Getting started

Step-by-step guide to configure and launch the demo application.

Hardware layout and configuration

PCB layout

Diagram showing component placement on the top layer of the PCB.

Mechanical drawing

Drawing showing physical dimensions and layout of the board.

Embedded STLINK-V3E

Details on the integrated STLINK-V3E debugger/programmer, drivers, firmware, and external tools.

Power supply

Explains various power supply options and their configurations for the board.

Clock sources

Details on configuring high-speed (HSE) and low-speed (LSE) external clocks.

Board functions

Covers LEDs, push-buttons, RF overview, current measurement, and solder bridges.

Board connectors

CN1 STLINK-V3E USB Micro-B connector

Connects the embedded STLINK-V3E to a PC for programming and debugging.

CN16 MIPI10 connector

Debugging connector with STDC14 pinout compatibility.

CN12 SMA connector

50 Ohm SMA connector for RF output.

CN5, CN6, CN8, and CN9 ARDUINO® Uno V3 connectors

Female connectors compatible with ARDUINO Uno V3 standard shields.

CN7 and CN10 ST morpho connectors

Male pin headers providing access to all STM32WL MCU signals.

STM32WL Nucleo-64 board information

Product marking

Information on product identification stickers on the PCB.

Board revision history

Details the revision history of the MB1389 board.

Known limitations

Lists any limitations, such as output power restrictions.

STM32WL Nucleo-64 I/O assignment

Federal Communications Commission (FCC) and Innovation, Science and Economic Development Canada (ISED) Compliance Statements

FCC Compliance Statement

FCC rules and compliance information for the device.

Additional FCC and ISED Compliance Statements

Further compliance statements for FCC and ISED regulations.

Déclaration de conformité CE simplifiée

Revision history