| Manufacturer | STMicroelectronics | 
                                                                            
                                            | Product Category | Embedded - Microcontrollers | 
                                                                            
                                            | Speed | 16MHz | 
                                                                            
                                            | Series | STM8S | 
                                                                            
                                            | RAM Size | 1K x 8 | 
                                                                            
                                            | Core Size | 8-Bit | 
                                                                            
                                            | Packaging | Digi-Reel® | 
                                                                            
                                            | EEPROM Size | 640 x 8 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | 
                                                                            
                                            | Connectivity | I²C, IrDA, LINbus, SPI, UART/USART | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Number of I/O | 16 | 
                                                                            
                                            | Core Processor | STM8 | 
                                                                            
                                            | Package / Case | 20-SOIC (0.295", 7.50mm Width) | 
                                                                            
                                            | Data Converters | A/D 5x10b | 
                                                                            
                                            | Oscillator Type | Internal | 
                                                                            
                                            | Base Part Number | STM8S903 | 
                                                                            
                                            | Program Memory Size | 8KB (8K x 8) | 
                                                                            
                                            | Program Memory Type | FLASH | 
                                                                            
                                            | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 2.95V ~ 5.5V |