ST STM32WL55JC - User Manual

June 2021 RM0453 Rev 2 1/1454
1
RM0453
Reference manual
STM32WL5x advanced Arm
®
-based 32-bit MCUs
with sub-GHz radio solution
Introduction
This reference manual targets application developers. It provides complete information on
how to use the STM32WL5x microcontrollers memory and peripherals.
STM32WL5x microcontrollers with integrated sub-GHZ radio operating in the
150 - 960 MHz ISM band, belong to a family of microcontrollers with different memory sizes,
packages and peripherals.
For ordering information, mechanical and electrical device characteristics, refer to the
corresponding datasheets.
For information on the Arm
®
Cortex
®
-Mx cores, refer to the corresponding Arm
®
Technical
Reference Manuals available on http://infocenter.arm.com.
STM32WL5x microcontrollers include ST state-of-the-art patented technology.
Related documents
• STM32WL55xx STM32WL54xx datasheet (DS13293)
For information on the device errata with respect to the datasheet and reference manual,
refer to the STM32WL55xx STM32WL54xx errata sheet (ES0500).
www.st.com

ST STM32WL55JC Specifications

General

Series	STM32WL
Speed	48MHz
Flash Memory	256 KB
RAM	64 KB
Voltage - Supply (Vcc/Vdd)	1.8 V ~ 3.6 V
RF Frequency	150MHz ~ 960MHz
Data Converters	A/D 12x12b; D/A 1x12b
ADC Channels	12
DAC Channels	1
Sub-GHz Radio	Yes
Core Processor	ARM Cortex-M4
Connectivity	I2C, SPI, UART
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C
Communication Interfaces	I2C, SPI, USART
Wireless Connectivity	LoRa, Sigfox
Radio Frequency Range	150MHz ~ 960MHz
Peripherals	DMA, POR, PWM, WDT