| Parameters | 
                                                                                                            
                                            | Mfr | Silicon Labs | 
                                                                            
                                            | Series | C8051F04x | 
                                                                            
                                            | Package | Tray | 
                                                                            
                                            | Product Status | Obsolete | 
                                                                            
                                            | Core Processor | 8051 | 
                                                                            
                                            | Core Size | 8-Bit | 
                                                                            
                                            | Speed | 25MHz | 
                                                                            
                                            | Connectivity | CANbus, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART | 
                                                                            
                                            | Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | 
                                                                            
                                            | Number of I/O | 32 | 
                                                                            
                                            | Program Memory Size | 64KB (64K x 8) | 
                                                                            
                                            | Program Memory Type | FLASH | 
                                                                            
                                            | EEPROM Size | - | 
                                                                            
                                            | RAM Size | 4.25K x 8 | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 2.7V ~ 3.6V | 
                                                                            
                                            | Data Converters | A/D 8x8b, 13x12b; D/A 2x10b, 2x12b | 
                                                                            
                                            | Oscillator Type | Internal | 
                                                                            
                                            | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 64-TQFP | 
                                                                            
                                            | Supplier Device Package | 64-TQFP (10x10) | 
                                                                            
                                            | Base Product Number | C8051F041 | 
                                                                            
                                            | RoHS Status | RoHS non-compliant | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | ECCN | EAR99 | 
                                                                            
                                            | HTSUS | 8542.31.0001 | 
                                                                            
                                            | Standard Package | 160 | 
                                                                                                    
                            
                         
                                                8051 C8051F04x Microcontroller IC 8-Bit 25MHz 64KB (64K x 8) FLASH 64-TQFP (10x10)