STM32WL3RKBV6

STM32WL3RKBV6

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STM32WL3RKBV6X

Sub-GHz Wireless Microcontrollers. Sing-core Arm Cortex-M0+ @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.

Supply Voltage Min Volt1.7
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
CoreArm Cortex-M0+
ECCN US5A992.c
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeIndustrial
Package NameVFQFPN 32 5x5x1.0 mm

The STM32WL3Rxx is a high performance ultra-low power wireless application processor, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands such as 433, 868, and 915 MHz.It adopts a single-core architecture...
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Key features
  • Includes ST state-of-the-art patented technology
  • Ultra-low power sub-1GHz wireless system-on-chip
  • Programmable MCU:
    • Core: Arm® Cortex®-M0+ 32-bit, running up to 64 MHz
    • Program memory: 64-Kbyte / 128-Kbyte flash memory
    • Data memory: 8-Kbyte / 16-Kbyte SRAM (full retention down to ultra deep stop)
    • Additional storage: 1-Kbyte OTP (user data)
  • Radio
    • Frequency bands: 276 - 319 MHz, 413-479 MHz, 826 - 958 MHz
    • Modulation schemes:
      • 2(G)FSK, 2(G)MSK, 4(G)FSK
      • OOK, ASK
      • D-BPSK
      • DSSS (direct sequence spread spectrum)
      • I/Q channels data access
      • Compatible with proprietary and standardized wireless protocols (wM-Bus, Sigfox, Mioty, KNX-RF, IEEE 802.15.4g, others)
    • Air data rate from 0.1 to 600 kbit/s
    • Programmable TX power:
      • 276 - 319 MHz up to 14 dBm
      • 413 - 479 MHz up to 20 dBm
      • 826 - 958 MHz up to 20 dBm
    • RX sensitivity @ 1% BER:
      • -122 dBm @ 2.4 kbit/s 315 MHz 2(G)FSK
      • -132 dBm @ 300 kbit/s 433 MHz OOK
      • -131 dBm @ 300 kbit/s 868 MHz 2(G)FSK
      • -112 dBm @ 38.4 kbit/s 868 MHz 2(G)FSK
    • Suitable for worldwide certifications:
      • Europe: ETSI EN 300 220, category 1 compliant, ETSI EN 303 131
      • US: FCC part 15 and part 90
      • Japan: ARIB STD T67, T108
    • Fully-configurable hardware sequencer for autonomous radio operations (Sniff mode, Frequency hopping, Low Duty Cycle mode, Listen before talk)
  • Ultra-low power architecture
    • Dynamic current consumption: 14 µA/MHz
    • Shutdown mode with 6 wakeup pins: 14 nA
    • UltraDeepstop mode: 418 nA (at 25 °C), 1.2 µA (at 85 °C) with RAM0 (16 Kbyte) retained
      • 6 wakeup pins
      • The following functions are not supported in UltraDeepstop mode: MR_SUBGHz, LPUART, RTC, IWDG, DAC
      • No internal wakeup capabilities support in this power mode
    • Deepstop mode: 1.123 µA at (at 25 °C), 4.176 µA (at 85 °C) with:
      • RAM0 (16 Kbyte)
      • IWDG
      • RTC with LSE
    • SoC consumption: 1.3 mA current in WFI conditions (direct HSE mode)
    • Radio only consumption:
      • 4 mA in RX
      • 8 mA in TX @ +10 dBm
      • 78 mA in TX @ +20 dBm
    • Consumption: 1.3 mA current in WFI conditions (direct HSE mode)
    • Wakeup capability from both Deepstop and Shutdown modes
  • Peripherals and analog front-end
    • 12-bit ADC: up to 1 Msample/s with 8 single ended channels (or 4 differentials)
    • Battery voltage monitoring with low-level detection
    • Temperature monitoring
  • Communication interfaces
    • Up to 18 GPIOs (VFQFPN32), all with retention capability
    • 1x USART. Supports of LIN, Smartcard Protocol, IrDA, SIR ENDEC specifications, and modem operations (CTS/RTS)
    • 1x LPUART (available also in low-power mode), with wakeup capability
    • 1 x SPI with I2S interface multiplexed
    • 1x I2C (SMBus/PMBus)
    • 1x DMA 8 channels controller, supporting ADC, SPIs, I2Cs, USART, LPUART, timers, AES
  • Clock sources and timers
    • Flexible clocking scheme, featuring:
      • 64 MHz (HSI or PLL)
      • Fail-safe 48 MHz crystal oscillator (HSE), with integrated trimming capacitors
      • 32 kHz crystal oscillator (LSE)
      • Integrated low-power 32 kHz RC (LSI)
    • 1x 16-bits, four channels general purpose timer
    • 1x 16-bits, two channels general purpose timer
    • 1x RTC
    • 1x independent watchdog
    • Radio timer with wakeup capability
  • Security
    • Secure bootloader with SWD disabling
    • AES-128 co-processor and 16-bit TRNG
    • Embedded UART bootloader with selectable write and read-out protection
  • Operating range and reset
    • Ultra-low-power power-on-reset (POR) and power-down-reset (PDR)
    • Programmable voltage detector (PVD)
    • Supply voltage: from 1.7 to 3.6 V
    • Temperature range: -40 ºC to 105 ºC
  • All packages are ECOPACK2 compliant
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Quantity $ per unit Savings
1-9$4.630%
10-24$3.0834%
25-99$2.8439%
100-249$2.4747%
250-499$2.3449%
500$2.1154%
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$4.63
Supply Voltage Min Volt1.7
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
CoreArm Cortex-M0+
ECCN US5A992.c
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeIndustrial
Package NameVFQFPN 32 5x5x1.0 mm

The STM32WL3Rxx is a high performance ultra-low power wireless application processor, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands such as 433, 868, and 915 MHz.It adopts a single-core architecture...
Read More

Key features
  • Includes ST state-of-the-art patented technology
  • Ultra-low power sub-1GHz wireless system-on-chip
  • Programmable MCU:
    • Core: Arm® Cortex®-M0+ 32-bit, running up to 64 MHz
    • Program memory: 64-Kbyte / 128-Kbyte flash memory
    • Data memory: 8-Kbyte / 16-Kbyte SRAM (full retention down to ultra deep stop)
    • Additional storage: 1-Kbyte OTP (user data)
  • Radio
    • Frequency bands: 276 - 319 MHz, 413-479 MHz, 826 - 958 MHz
    • Modulation schemes:
      • 2(G)FSK, 2(G)MSK, 4(G)FSK
      • OOK, ASK
      • D-BPSK
      • DSSS (direct sequence spread spectrum)
      • I/Q channels data access
      • Compatible with proprietary and standardized wireless protocols (wM-Bus, Sigfox, Mioty, KNX-RF, IEEE 802.15.4g, others)
    • Air data rate from 0.1 to 600 kbit/s
    • Programmable TX power:
      • 276 - 319 MHz up to 14 dBm
      • 413 - 479 MHz up to 20 dBm
      • 826 - 958 MHz up to 20 dBm
    • RX sensitivity @ 1% BER:
      • -122 dBm @ 2.4 kbit/s 315 MHz 2(G)FSK
      • -132 dBm @ 300 kbit/s 433 MHz OOK
      • -131 dBm @ 300 kbit/s 868 MHz 2(G)FSK
      • -112 dBm @ 38.4 kbit/s 868 MHz 2(G)FSK
    • Suitable for worldwide certifications:
      • Europe: ETSI EN 300 220, category 1 compliant, ETSI EN 303 131
      • US: FCC part 15 and part 90
      • Japan: ARIB STD T67, T108
    • Fully-configurable hardware sequencer for autonomous radio operations (Sniff mode, Frequency hopping, Low Duty Cycle mode, Listen before talk)
  • Ultra-low power architecture
    • Dynamic current consumption: 14 µA/MHz
    • Shutdown mode with 6 wakeup pins: 14 nA
    • UltraDeepstop mode: 418 nA (at 25 °C), 1.2 µA (at 85 °C) with RAM0 (16 Kbyte) retained
      • 6 wakeup pins
      • The following functions are not supported in UltraDeepstop mode: MR_SUBGHz, LPUART, RTC, IWDG, DAC
      • No internal wakeup capabilities support in this power mode
    • Deepstop mode: 1.123 µA at (at 25 °C), 4.176 µA (at 85 °C) with:
      • RAM0 (16 Kbyte)
      • IWDG
      • RTC with LSE
    • SoC consumption: 1.3 mA current in WFI conditions (direct HSE mode)
    • Radio only consumption:
      • 4 mA in RX
      • 8 mA in TX @ +10 dBm
      • 78 mA in TX @ +20 dBm
    • Consumption: 1.3 mA current in WFI conditions (direct HSE mode)
    • Wakeup capability from both Deepstop and Shutdown modes
  • Peripherals and analog front-end
    • 12-bit ADC: up to 1 Msample/s with 8 single ended channels (or 4 differentials)
    • Battery voltage monitoring with low-level detection
    • Temperature monitoring
  • Communication interfaces
    • Up to 18 GPIOs (VFQFPN32), all with retention capability
    • 1x USART. Supports of LIN, Smartcard Protocol, IrDA, SIR ENDEC specifications, and modem operations (CTS/RTS)
    • 1x LPUART (available also in low-power mode), with wakeup capability
    • 1 x SPI with I2S interface multiplexed
    • 1x I2C (SMBus/PMBus)
    • 1x DMA 8 channels controller, supporting ADC, SPIs, I2Cs, USART, LPUART, timers, AES
  • Clock sources and timers
    • Flexible clocking scheme, featuring:
      • 64 MHz (HSI or PLL)
      • Fail-safe 48 MHz crystal oscillator (HSE), with integrated trimming capacitors
      • 32 kHz crystal oscillator (LSE)
      • Integrated low-power 32 kHz RC (LSI)
    • 1x 16-bits, four channels general purpose timer
    • 1x 16-bits, two channels general purpose timer
    • 1x RTC
    • 1x independent watchdog
    • Radio timer with wakeup capability
  • Security
    • Secure bootloader with SWD disabling
    • AES-128 co-processor and 16-bit TRNG
    • Embedded UART bootloader with selectable write and read-out protection
  • Operating range and reset
    • Ultra-low-power power-on-reset (POR) and power-down-reset (PDR)
    • Programmable voltage detector (PVD)
    • Supply voltage: from 1.7 to 3.6 V
    • Temperature range: -40 ºC to 105 ºC
  • All packages are ECOPACK2 compliant