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.

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STMicroelectronics ARM 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
77In Stock
2 940Expected 4/30/2027
Min.: 1
Mult.: 1

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 64 MHz 18 I/O 8 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM 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
135In Stock
Min.: 1
Mult.: 1
Max.: 30

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 64 MHz 18 I/O 8 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM 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
121In Stock
Min.: 1
Mult.: 1

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

STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ a.64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
37In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM 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
30In Stock
2 940Expected 10/9/2026
Min.: 1
Mult.: 1

STM32WL SMD/SMT VFQFPN-32 ARM Cortex M0+ 128 kB 32 bit 12 bit 64 MHz 18 I/O 16 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 64 Kb Flash 16 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

SMD/SMT VQFN-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 64 MHz 32 I/O 16 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 64 Kb Flash 16 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

SMD/SMT VQFN-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 32 I/O 16 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 128 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

SMD/SMT VQFN-48 ARM Cortex M0+ 128 kB 32 bit 12 bit 64 MHz 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 128 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

SMD/SMT VQFN-48 ARM Cortex M0+ 128 kB 32 bit 12 bit 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ a.64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 2 940
Mult.: 2 940

STM32WL SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 32 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64MHz 64K Flash 16K SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64MHz 64K Flash 16K SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 128 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 128 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
Non-Stocked Lead-Time 52 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000

STM32WL SMD/SMT VQFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 17 I/O 32 kB 1.7 V 3.6 V - 40 C + 105 C Reel