| Parameters | 
                                                                                                                        
                                                | Mfr | Silicon Labs | 
                                                                                    
                                                | Series | C8051F58x | 
                                                                                    
                                                | Package | Tube | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Core Processor | 8051 | 
                                                                                    
                                                | Core Size | 8-Bit | 
                                                                                    
                                                | Speed | 50MHz | 
                                                                                    
                                                | Connectivity | EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART | 
                                                                                    
                                                | Peripherals | POR, PWM, Temp Sensor, WDT | 
                                                                                    
                                                | Number of I/O | 40 | 
                                                                                    
                                                | Program Memory Size | 128KB (128K x 8) | 
                                                                                    
                                                | Program Memory Type | FLASH | 
                                                                                    
                                                | EEPROM Size | - | 
                                                                                    
                                                | RAM Size | 8.25K x 8 | 
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.25V | 
                                                                                    
                                                | Data Converters | A/D 32x12b | 
                                                                                    
                                                | Oscillator Type | Internal | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 125°C (TA) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 48-VFQFN Exposed Pad | 
                                                                                    
                                                | Supplier Device Package | 48-QFN (7x7) | 
                                                                                    
                                                | Base Product Number | C8051F581 | 
                                                                                    
                                                | RoHS Status | RoHS Compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                                    
                                                | ECCN | 3A991A2 | 
                                                                                    
                                                | HTSUS | 8542.31.0001 | 
                                                                                    
                                                | Other Names | 336-1567-5 | 
                                                                                    
                                                | Standard Package | 43 | 
                                                                                                                
                                
                             
                                                8051 C8051F58x Microcontroller IC 8-Bit 50MHz 128KB (128K x 8) FLASH 48-QFN (7x7)