STM32WL3RK8 | 产品 - 意法半导体

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产品概要

Key Benefits

节约能源

通过降低远程控制应用的功耗延长电池使用寿命
全球领先的低发射电流：10 dBm时仅10 mA
450nA超深度停机电流，支持RAM内容保留
关断电流低至14 nA，具有多达6个唤醒引脚

功能全面

支持多重调制、IQ接口和灵活的硬件数据包处理器
支持全球部署的4个频段：315 MHz、433 MHz、868 MHz、915 MHz/920 MHz
支持wM-Bus、802.15.4g、Mioty、Sigfox和KNX协议

性价比高

尺寸小巧：5x5 mm，最多18个GPIO，基于Cortex-M0+
提供仅发射版：型号STM32WL3R-X

描述

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 embedding an Arm® 32-bit Cortex®-M0+ CPU that can operate up to 64 MHz. It integrates high-speed and flexible memory types: up to 128 Kbyte flash memory, and up to 16 Kbyte RAM, one-time programmable (OTP) memory area of 1 Kbyte.

The STM32WL3Rxx embeds a wide set of peripherals, 12-bit, 8 channel ADC, RTC, IWDG, general purpose timers, AES-128, RNG, CRC, communication interfaces such as USART, SPI, and I2C. Moreover, the security features enable secure boot with USART/SWD block (write protection) and sensitive information storage in flash (read-out protection).

Direct data transfer between memory and peripherals and from memory-to-memory is supported by seven DMA channels with fully-flexible channel mapping by the DMAMUX peripheral.

It can be configured to support standalone or network processor applications. In the first configuration, the STM32WL3Rxx operates as single device in the application for managing both the application code and proprietary sub-1 GHz protocol stacks.

It operates in the -40 to +105 °C temperature range from a 1.7 V to 3.6 V power supply. A comprehensive set of power-saving modes enables the design of low-power applications.

The integrated highly efficient SMPS step-down converter together with the state transition speed between low-power and active states minimize in every condition the average current consumption enabling the STM32WL3Rxx to be the wireless application processor most suited for battery-operated applications.

The STM32WL3Rxx comes in a VFQFPN32 package supporting up to 18 I/Os.

性能一览
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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Available documentation resources
	Resource title	版本	Latest update	Actions	Details	下載

System View Description (1)

	Resource title	版本	Latest update	Actions	Update date	Options
ZIP	Check to add to the download list STM32WL3 System View Description	1.0	17 Oct 2024	ZIP	17 Oct 2024 STM32WL3 System View Description 1.0

IBIS models (1)

	Resource title	版本	Latest update	Actions	Update date	Options
ZIP	Check to add to the download list STM32WL IBIS files	3.0	27 Jun 2024	ZIP	27 Jun 2024 STM32WL IBIS files 3.0

Quality and Reliability

Part Number	Marketing Status	Package	Grade	符合RoHS级别	Longevity Commitment	Longevity Starting Date
STM32WL3RK8V6	Active	VFQFPN 32 5x5x1.0 mm	Industrial	Ecopack2	10	2026-01-01T00:00:00.000+01:00
STM32WL3RK8V6TR	Active	VFQFPN 32 5x5x1.0 mm	Industrial	Ecopack2	10	2026-01-01T00:00:00.000+01:00
STM32WL3RK8V6X	Active	VFQFPN 32 5x5x1.0 mm	Industrial	Ecopack2	10	2026-01-01T00:00:00.000+01:00