category Integrated Circuit (IC) Embedded-Microcontroller manufacturer STMicroelectronics series STM8S Package tray Core processor STM8 Core specifications 8-bit speed 16MHz Connectivity I2C, IrDA, LINbus, SPI, UART/USART Peripherals Undervoltage detection/reset, POR, PWM, WDT Number of I/O 16 Program storage capacity 8KB (8K x 8) Program memory type Flash memory EEPROM capacity 640 x 8 RAM size 1K x 8 Voltage-power supply (Vcc/Vdd) 2.95V ~ 5.5V Data converter A/D 5x10b Oscillator type internal Operating temperature -40°C ~ 85°C (TA) Type of installation Surface mount type Encapsulation/Shell 20-TSSOP (0.173", 4.40mm width) Supplier device packaging 20-TSSOP