| Parameters | 
                                                                                                                        
                                                | Mfr | Atmel | 
                                                                                    
                                                | Series | AVR® | 
                                                                                    
                                                | Package | Bulk | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Core Processor | AVR | 
                                                                                    
                                                | Core Size | 32-Bit Single-Core | 
                                                                                    
                                                | Program Memory Size | 256KB (256K x 8) | 
                                                                                    
                                                | Program Memory Type | FLASH | 
                                                                                    
                                                | RAM Size | 32K x 8 | 
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V | 
                                                                                    
                                                | Data Converters | A/D 8x12b | 
                                                                                    
                                                | Oscillator Type | Internal | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Base Product Number | ATUC256 | 
                                                                                    
                                                | RoHS Status | Not applicable | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                                    
                                                | REACH Status | Vendor Undefined | 
                                                                                    
                                                | HTSUS | 0000.00.0000 | 
                                                                                    
                                                | Standard Package | 5,000 | 
                                                                                                                
                                
                             
                                                AVR AVR® Microcontroller IC 32-Bit Single-Core 256KB (256K x 8) FLASH