STMicroelectronics

STM32W 32-bit RF MCUs

The STM32 family is expanding to the wireless network domain bringing outstanding radio and low-power microcontroller performances. With a configurable total link budget up to 109 dB and the efficiency of the ARM Cortex-M3 core, the STM32W is a perfect fit for the wireless sensor network market. Compliant with the IEEE 802.15.4 radio standard, this open and flexible platform supports the most popular protocol stacks such as RF4CE, ZigBee-PRO, 6LoWPAN and more.

The STM32W108 family is a fully integrated System-on-Chip that integrates a 2.4 GHz, IEEE 802.15.4-compliant transceiver, 32-bit ARM® Cortex™-M3 microprocessor, Flash and RAM memory, and peripherals of use to designers of 802.15.4-based systems.

  • Complete system-on-chip
    • 32-bit ARM® Cortex™-M3 processor
    • 2.4 GHz IEEE 802.15.4 transceiver & lower MAC
    • 8-Kbyte RAM/64-Kbyte Flash memory and 8-Kbyte RAM/128-Kbyte Flash memory versions available
    • AES128 encryption accelerator
    • Flexible ADC, SPI/UART/I2C serial communications, and general-purpose timers
    • Up to 24 highly configurable GPIOs with Schmitt trigger inputs
  • Industry-leading ARM® Cortex™-M3 processor
    • Leading 32-bit processing performance
    • Highly efficient Thumb®-2 instruction set
    • Operation at 6, 12 or 24 MHz
    • Flexible nested vectored interrupt controller
  • Low power consumption, advanced management
    • Receive current (w/ CPU): 27 mA
    • Transmit current (w/ CPU, +3 dBm TX): 31 mA
    • Low deep sleep current, with retained RAM and GPIO: 400 nA/800 nA with/without sleep timer
    • Low-frequency internal RC oscillator for low-power sleep timing
    • High-frequency internal RC oscillator for fast (100 μs) processor start-up from sleep
  • Exceptional RF performance
    • Normal mode link budget up to 102 dB; configurable up to 107 dB
    • -99 dBm normal RX sensitivity; configurable to -100 dBm (1% PER, 20 byte packet)
    • +3 dB normal mode output power; configurable up to +7 dBm
    • Robust WiFi and Bluetooth coexistence
  • Innovative network and processor debug
    • Non-intrusive hardware packet trace
    • Serial wire/JTAG interface
    • Standard ARM debug capabilities: Flash patch and breakpoint; data watchpoint and trace; instrumentation trace macrocell
  • Application flexibility
    • Single voltage operation: 2.1-3.6 V with internal 1.8 V and 1.25 V regulators
    • Optional 32.768 kHz crystal for higher timer accuracy
    • Low external component count with single 24 MHz crystal
    • Support for external power amplifier
    • 6x6 mm 40-pin and 7x7 mm 48-pin VFQFPN package available

Development tools and evaluation boards available on request.

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