Atmel ATmega328 AVR 8-Bit Microcontroller, 32KB Flash, DIP-28

The Atmel ATmega328 is a high-performance, low-power 8-bit AVR RISC-based microcontroller from the picoPower series, featuring 32KB of in-system programmable flash memory with read-while-write capabilities, 1024B EEPROM, and 2KB SRAM. It operates between 1.8V and 5.5V, making it ideal for a wide range of embedded applications.

The device includes 23 general-purpose I/O lines, 32 working registers, three flexible timer/counters with compare modes, internal and external interrupts, a serial programmable USART, a byte-oriented 2-wire interface, an SPI serial port, and a 6-channel 10-bit A/D converter (8 channels in TQFP and QFN/MLF packages). Its advanced RISC architecture enables efficient execution of instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz.

The microcontroller supports Atmel's QTouch library for capacitive touch sensing, a programmable watchdog timer with an internal oscillator, and five software-selectable power-saving modes, ensuring optimal power efficiency. It is available in a 28-pin DIP package, suitable for through-hole mounting.

Technical Specifications

• Product Range: AVR ATmega Family, ATmega328 Series
• Operating Frequency Max: 20MHz
• Program Memory Size: 32KB
• No. of Pins: 28
• IC Case / Package: DIP
• No. of I/Os: 23
• Interfaces: I2C, SPI, UART
• RAM Memory Size: 2KB
• Supply Voltage Min: 1.8V
• Supply Voltage Max: 5.5V
• Operating Temperature Range: -40°C to +85°C

The ATmega328 is a reliable choice for developers seeking a robust, feature-rich microcontroller for prototyping and production applications.