The AVR64DB28-I/SP is an 8-bit microcontroller manufactured by Microchip. It features 64KB of flash memory, 28-pin SPDIP package, an operating temperature range of -40°C to +85°C, an operating speed of up to 24MHz, and an array of integrated analog and digital peripherals. These include a 12-bit Analog-to-Digital Converter (ADC), Comparator (Comp), Operational Amplifier (Opamp), Mixed-Voltage I/O (MVIO), Zero-cross Detection (ZCD), Digital-to-Analog Converter (DAC), Universal Asynchronous Receiver/Transmitter (UART), Serial Peripheral Interface (SPI), and Two-Wire Interface (TWI).