The ATmega328 is a powerful 8-bit AVR microcontroller widely used in embedded systems and electronics projects. Based on an enhanced RISC architecture, it delivers high performance with low power consumption. It comes with 32 KB of Flash memory, 2 KB SRAM, and 1 KB EEPROM, making it suitable for various standalone applications. It supports UART, SPI, and I2C interfaces, includes multiple timers, and features a 6-channel 10-bit ADC for analog signal processing. Ideal for automation, control systems, and Arduino-compatible setups.
Specifications:
| Parameter | Value |
|---|---|
| Architecture | 8-bit AVR |
| Program Memory | 32 KB Flash |
| EEPROM | 1 KB |
| SRAM | 2 KB |
| Operating Voltage | 1.8 V – 5.5 V |
| ADC | 6-channel, 10-bit |
| Communication Interfaces | UART, SPI, I2C |
| GPIO | 23 I/O Lines |
| Timers | 3 (with compare modes) |
| Write/Erase Cycles | Flash: 10,000 / EEPROM: 100,000 |
| Data Retention | 20 years @ 85°C / 100 years @ 25°C |
| Power Saving Modes | 5 Modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby) |
Features:
- Enhanced 8-bit AVR RISC architecture
- 32 KB ISP Flash with read-while-write capability
- 2 KB SRAM and 1 KB EEPROM
- 23 general-purpose I/O lines
- 6-channel 10-bit ADC
- Three flexible timer/counter modules
- Serial programmable USART
- SPI and I2C (TWI) interfaces
- Watchdog timer with internal oscillator
- Internal and external interrupt support
- Five software-selectable power saving modes
Package Includes:
- 1 x ATmega328P-U PDIP-28 8 BIT Microcontroller IC
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