Housing: DIP20. Number of I/O: 15. Operating temperature range min (°C): -40°C. Operating temperature range max (°C): +85°C. Series: AT89LP. Core / Family: 89LP. Frequency: 20MHz. Program storage memory: 4kB. EEPROM memory size: none. RAM memory: PCB through-hole mounting. External memory Controller: SRMA. Connectivity: ATMEL AT89. Connectivity: 20 MHz. Analog Peripherals: Analog Comp.. Supply Voltage Min: 2.4V. Supply Voltage Max: 5.5V. Operating temperature: -40...+85°C. Mounting Type: THT. MSL: USART, SPI, PWM. Packaging / Quantity: Tube 20. Other Features: +2.4V. Information: +5.5V