| Manufacturer | Silicon Labs | Silicon Labs | 
                        
                            | Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
                        
                            |  |   |   | 
                                                
                            | Product Status | Discontinued at Digi-Key | Discontinued at Digi-Key | 
                                                
                            | Core Processor | ARM® Cortex®-M0+ | ARM® Cortex®-M0+ | 
                                                
                            | Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 
                                                
                            | Speed | 48MHz | 48MHz | 
                                                
                            | Connectivity | CANbus, I²C, IrDA, LINbus, SmartCard, SPI, UART/USART | CANbus, I²C, IrDA, LINbus, SmartCard, SPI, UART/USART | 
                                                
                            | Peripherals | Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT | 
                                                
                            | Number of I/O | 37 | 37 | 
                                                
                            | Program Memory Size | 128KB (128K x 8) | 128KB (128K x 8) | 
                                                
                            | Program Memory Type | Flash | Flash | 
                                                
                            | EEPROM Size | - | - | 
                                                
                            | RAM Size | 32K x 8 | 32K x 8 | 
                                                
                            | Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.8V | 1.8V ~ 3.8V | 
                                                
                            | Data Converters | A/D 12bit SAR; D/A 12bit | A/D 12bit SAR; D/A 12bit | 
                                                
                            | Oscillator Type | Internal | Internal | 
                                                
                            | Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
                                                
                            | Mounting Type | Surface Mount | Surface Mount | 
                                                
                            | Package / Case | 48-TQFP | 48-TQFP | 
                                                
                            | Supplier Device Package | 48-TQFP (7x7) | 48-TQFP (7x7) |