| Parameters | 
                                                                                                            
                                        | Mfr | Silicon Labs | 
                                                                        
                                        | Series | Leopard Gecko | 
                                                                        
                                        | Package | Tape & Reel (TR) | 
                                                                        
                                        | Product Status | Obsolete | 
                                                                        
                                        | Core Processor | ARM® Cortex®-M3 | 
                                                                        
                                        | Core Size | 32-Bit Single-Core | 
                                                                        
                                        | Speed | 48MHz | 
                                                                        
                                        | Connectivity | I²C, IrDA, SmartCard, SPI, UART/USART | 
                                                                        
                                        | Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT | 
                                                                        
                                        | Number of I/O | 56 | 
                                                                        
                                        | Program Memory Size | 256KB (256K x 8) | 
                                                                        
                                        | Program Memory Type | FLASH | 
                                                                        
                                        | EEPROM Size | - | 
                                                                        
                                        | RAM Size | 32K x 8 | 
                                                                        
                                        | Voltage - Supply (Vcc/Vdd) | 1.98V ~ 3.8V | 
                                                                        
                                        | Data Converters | A/D 8x12b; D/A 2x12b | 
                                                                        
                                        | Oscillator Type | Internal | 
                                                                        
                                        | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | 64-WFQFN Exposed Pad | 
                                                                        
                                        | Supplier Device Package | 64-QFN (9x9) | 
                                                                        
                                        | Base Product Number | EFM32LG840 | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                        
                                        | REACH Status | REACH Unaffected | 
                                                                        
                                        | ECCN | 5A992C | 
                                                                        
                                        | HTSUS | 8542.31.0001 | 
                                                                        
                                        | Standard Package | 1,000 | 
                                                                                                        
                            
                         
                                                ARM® Cortex®-M3 Leopard Gecko Microcontroller IC 32-Bit Single-Core 48MHz 256KB (256K x 8) FLASH 64-QFN (9x9)