| Parameters | 
                                    
                                                                                                            
                                        | Mfr | 
                                        Atmel | 
                                    
                                                                        
                                        | Series | 
                                        SAM D20E | 
                                    
                                                                        
                                        | Package | 
                                        Bulk | 
                                    
                                                                        
                                        | Product Status | 
                                        Active | 
                                    
                                                                        
                                        | Core Processor | 
                                        ARM® Cortex®-M0+ | 
                                    
                                                                        
                                        | Core Size | 
                                        32-Bit Single-Core | 
                                    
                                                                        
                                        | Speed | 
                                        48MHz | 
                                    
                                                                        
                                        | Connectivity | 
                                        I²C, SPI, UART/USART | 
                                    
                                                                        
                                        | Peripherals | 
                                        Brown-out Detect/Reset, POR, WDT | 
                                    
                                                                        
                                        | Number of I/O | 
                                        26 | 
                                    
                                                                        
                                        | Program Memory Size | 
                                        128KB (128K x 8) | 
                                    
                                                                        
                                        | Program Memory Type | 
                                        FLASH | 
                                    
                                                                        
                                        | EEPROM Size | 
                                        - | 
                                    
                                                                        
                                        | RAM Size | 
                                        16K x 8 | 
                                    
                                                                        
                                        | Voltage - Supply (Vcc/Vdd) | 
                                        1.62V ~ 3.6V | 
                                    
                                                                        
                                        | Data Converters | 
                                        A/D 10x12b; D/A 1x10b | 
                                    
                                                                        
                                        | Oscillator Type | 
                                        Internal | 
                                    
                                                                        
                                        | Operating Temperature | 
                                        -40°C ~ 85°C (TA) | 
                                    
                                                                        
                                        | Mounting Type | 
                                        Surface Mount | 
                                    
                                                                        
                                        | Package / Case | 
                                        32-VFQFN Exposed Pad | 
                                    
                                                                        
                                        | Supplier Device Package | 
                                        32-QFN (5x5) | 
                                    
                                                                        
                                        | Base Product Number | 
                                        ATSAMD20 | 
                                    
                                                                        
                                        | ECCN | 
                                        3A991A2 | 
                                    
                                                                        
                                        | HTSUS | 
                                        8542.31.0001 | 
                                    
                                                                        
                                        | Standard Package | 
                                        1 | 
                                    
                                                                                                        
                            
                         
                                                ARM® Cortex®-M0+ SAM D20E Microcontroller IC 32-Bit Single-Core 48MHz 128KB (128K x 8) FLASH 32-QFN (5x5)