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Attributes Table
Family Name STM8S
Core Processor STM8
Program Memory Type Flash
Flash Size (Bytes) 128kB
RAM Size 6kB
Speed 24MHz
No of I/O Lines 68
InterfaceType / Connectivity CAN/I2C/SPI/UART
Peripherals CAN/I2C/On-Chip-ADC/SPI/UART/Watchdog
Number Of Timers 9
Supply Voltage 2.95V to 5.5V
Operating Temperature -40°C to +85°C
On-Chip ADC 16-chx10-bit
Watchdog Timers 2
Features and Applications

The STM8S208MBT6B is a 8-bit microcontroller offers a full peripheral set with 128 KB of flash memory, 2 KB EEPROM in an 80-Pin LQFP package.

The STM8S20xxx performance line 8-bit microcontrollers offer from 32 to 128 Kbytes Flash program memory. They are referred to as high-density devices in the STM8S microcontroller family reference manual. All devices of the STM8S20xxx performance line provide the following benefits: reduced system cost, performance robustness, short development cycles, and product longevity. 


  • Max fCPU : up to 24 MHz, 0 wait states @ fCPU ≤ 16 MHz
  • Program: up to 128 Kbytes Flash; data retention 20 years at 55 °C after 10 kcycles
  • 2.95 to 5.5 V operating voltage
  • Low power crystal resonator oscillator
  • Nested interrupt controller with 32 interrupts
  • High speed 1 Mbit/s active beCAN 2.0B
  • 10-bit ADC with up to 16 channels