ST50HE

  - System

• High performance Cortex-M4 32-bit RISC core operating up to 48 MHz
• Embedded memories (256 Kbytes of Flash and 64 Kbytes of RAM) 
• Hardware encryption AES 256-bit 
• True random number generator (RNG) 

  - Clock Source

• 32 MHz TCXO & 32 KHz XTAL 

  - Radio

• Modulation: LoRa®, (G)FSK, (G)MSK and BPSK. Sigfox:DBPSK, 2GFSK. 
• Max. RF Output power : +14 dBm 
• High sensitivity: down to -138 dBm for LoRa @125kHz, SF12 
• Automatic RF Sense and CAD with ultra-fast AFC 

  - System Peripherals

•  Small footprint：12 mm x 12 mm x 1.22 mm(Typ.)
•  2 DMA, 2 USART, 1 LPUART, 2 SPI, 3 I2C 
•  RTC wakeup counter, SysTick, Watchdog 
• High-efficiency SMPS step-down converter and independent power supplies for ADC, DAC and comparator analog inputs 
• VBAT mode with RTC and 20x32-byte backup registers, battery voltage monitoring