Description: 1. The ATmega328 is a microcontroller unit (MCU) based on the AVR architecture by Atmel (now Microchip Technology). It comes with 32 KB ISP flash memory, 2 KB SRAM, and 256 B EEPROM. 2. This MCU operates at a clock speed of up to 20 MHz and features 23 general-purpose input/output (GPIO) pins, 6 of which can be configured as PWM outputs for analog control. 3. The ATmega328 includes six independent 12-bit analog comparators with input multiplexing capabilities to support up to 14 analog inputs. 4. It has an in-system programmer (ISP) interface that enables easy firmware updates through a parallel port or via JTAG/SPI methods, making it ideal for development and prototyping purposes. 5. This MCU supports various communication interfaces like USART, SPI, I²C, and TWI, allowing seamless integration with other devices in IoT networks and systems. 6. The ATmega328 is power-efficient, consuming as low as 0.1 mA of current in idle mode and 1.5 mA during active operation, making it suitab
| Specification | Details |
|---|---|
| Processor | 8-bit AVR RISC-based 16 MHz Clock |
| Core Voltage | 1.8 - 5.5V (3.3V or 5V tolerant) |
| Flash Memory | 32 KB of In-System Programmable Flash |
| SRAM | 2 KB of In-System Programmable SRAM |
| EEPROM | 1 KB of In-System Programmable EEPROM |
| Communication | UART (Synchronous and Asynchronous) SPI I2C (MSSP) |
| Timers/Counters | 8-bit Timer/Counter with Prescaler |
| Interrupts | Up to 23 interrupt sources |
| Analog Inputs | 10 channels 10-bit ADC resolution |
| Digital I/O | 20 General Purpose I/O Pins |
| Operating Modes | Crystal Oscillator External Clock Internal RC Oscillator |
| Package Options | QFP (TQFP) or PDIP (SOIC) packages |
