| Manufacturer | Silicon Labs | 
                                                                            
                                            | Product Category | Embedded - Microcontrollers | 
                                                                            
                                            | Speed | 48MHz | 
                                                                            
                                            | Series | Leopard Gecko | 
                                                                            
                                            | RAM Size | 32K x 8 | 
                                                                            
                                            | Core Size | 32-Bit | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | EEPROM Size | - | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | 
                                                                            
                                            | Connectivity | I²C, IrDA, SmartCard, SPI, UART/USART, USB OTG | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Number of I/O | 65 | 
                                                                            
                                            | Core Processor | ARM® Cortex®-M3 | 
                                                                            
                                            | Package / Case | 81-UFBGA, CSPBGA | 
                                                                            
                                            | Data Converters | A/D 8x12b; D/A 1x12b | 
                                                                            
                                            | Oscillator Type | Internal | 
                                                                            
                                            | Program Memory Size | 256KB (256K x 8) | 
                                                                            
                                            | Program Memory Type | FLASH | 
                                                                            
                                            | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                            
                                            | Supplier Device Package | 81-CSP (4.35x4.27) | 
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 1.98V ~ 3.8V |