| Installation type | Through-Hole |
| packing | pipe |
| series | AVR® ATmega |
| Part status | On sale |
| Memory type | Flash Memory |
| storage capacity | 128KB(64K x 16) |
| speed | 20MHz |
| Voltage - Supply | 1.8V ~ 5.5V |
| working temperature | -40°C ~ 85°C(TA) |
| Encapsulation/Housing | 40-DIP(0.600,15.24mm) |
| Country of origin | USA |
| Warehouse | China/Hong Kong |
| quality | Original genuine |
| Number of cores | 8 bit |
| Core processor | AVR |
| Connectivity | I²C,SPI,UART/USART |
| peripheral | Undervoltage detection,reset,POR,PWM,WDT |
| Number of I/Os | 32 |
| EEPROM capacity | 4K x 8 |
| RAM size | 16K x 8 |
| Data converter | A/D 8x10b |
| Oscillator type | Inside |