STM32WL3x Low-Power Sub-GHz Wireless MCUs

STMicroelectronics STM32WL3x Low-Power Sub-GHz Wireless MCUs are designed to provide efficient long-range communication for IoT applications. Built on the Arm® Cortex®-M0+ core, these microcontrollers operate at up to 64MHz and integrate a sub-GHz dual radio, offering high flexibility and reduced bill of materials (BoM) costs. With up to 256K-bytes of flash memory and 32K-bytes of SRAM, the STM32WL3x line supports multiple modulation schemes, including 4-(G)FSK, (G)MSK, DBPSK, DSSS, OOK, and ASK. The main radio provides long-range connectivity with an RX sensitivity of up to -132dBm and a programmable TX power of up to +20dBm. Additionally, the dedicated wake-up radio ensures ultra-low power consumption, achieving down to 4.2μA in always-on mode. These features make the STM32WL3x MCUs ideal for applications such as smart homes, city infrastructure management, asset tracking, and various IoT devices.

Results: 4
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Package/Case
Core
Program Memory Size
Data RAM Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
STMicroelectronics 32-bit Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Sing-core Arm Cortex-M0+ at 64 MHz with 64 Kbytes of Flash memory, 8 Kbytes of SRAM. 2(G)FSK, 4(G)FSK, OOK, ASK, D-BPSK, DSSS modulation I/Q channel interface. AES 128. Multiprotocol System-on-Chip.
Datasheet
147In Stock
Min.: 1
Mult.: 1
Max.: 15

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 64 kB 8 kB 32 bit 12 bit 64 MHz 18 I/O 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics 32-bit Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Sing-core Arm Cortex-M0+ at 64 MHz with 64 Kbytes of Flash memory, 8 Kbytes of SRAM. 2(G)FSK, 4(G)FSK, OOK, ASK, D-BPSK, DSSS modulation I/Q channel interface. AES 128. Multiprotocol System-on-Chip.
Datasheet
147Expected 27/03/2026
Min.: 1
Mult.: 1
Max.: 15

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 64 kB 8 kB 32 bit 12 bit 64 MHz 18 I/O 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics 32-bit Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Sing-core Arm Cortex-M0+ at 64 MHz with 128 Kbytes of Flash memory, 16 Kbytes of SRAM. 2(G)FSK, 4(G)FSK, OOK, ASK, D-BPSK, DSSS modulation I/Q channel interface. AES 128. Multiprotocol System-on-Chip.
Datasheet
150Expected 20/04/2026
Min.: 1
Mult.: 1
Max.: 15

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 128 kB 16 kB 32 bit 12 bit 64 MHz 18 I/O 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics 32-bit Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Sing-core Arm Cortex-M0+ at 64 MHz with 128 Kbytes of Flash memory, 16 Kbytes of SRAM. 2(G)FSK, 4(G)FSK, OOK, ASK, D-BPSK, DSSS modulation I/Q channel interface. AES 128. Multiprotocol System-on-Chip.
Datasheet
150Expected 20/04/2026
Min.: 1
Mult.: 1
Max.: 15

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 128 kB 16 kB 32 bit 12 bit 64 MHz 18 I/O 1.7 V 3.6 V - 40 C + 85 C Tray