| Core | 8-bit AVR core |
| Flash Memory | 1 KB Flash memory (programmable in-system) |
| RAM | 64 Bytes RAM |
| EEPROM | 128 Bytes EEPROM |
| Operating Voltage | 1.8 V to 5.5 V |
| Clock Speed | 20 MHz maximum operating frequency |
| Timers | 1x 8-bit timer, 1x 16-bit timer |
| ADC | 10-bit, 4-channel Analog-to-Digital Converter (ADC) |
| PWM | 2 PWM channels |
| I/O Pins | 6 General-purpose I/O pins |
| Communication Interfaces | 1x SPI, 1x UART (USART), 1x TWI (I2C) |
| Watchdog | Independent Watchdog (IWDG) |
| Low Power Modes | Sleep and Standby modes for power saving |
| Interrupts | 5 external interrupts, 1 software interrupt |
| Temperature Range | -40°C to +85°C |
| Package | 8-pin SOIC (Small Outline Integrated Circuit) |
| Bootloader | Support for in-application programming (IAP) |
| Peripheral Features | 1x Watchdog Timer (WDT), 1x Timer, 1x TWI, 1x SPI |
| Oscillator | Internal 8 MHz oscillator, external clock support |
| Development Tools | Supported by Atmel Studio, Arduino IDE, and third-party tools |
| Protection | Brown-out Reset (BOR), Watchdog Timer (WDT), Power-on Reset (POR) |
| Package Size | 8-pin SOIC (Small Outline Integrated Circuit) |
| Temperature Monitoring | No internal temperature sensor |
Microchip