The ATMEGA328P-AU from Microchip is a robust, low-power 8-bit AVR RISC microcontroller. It features 32 kB of in-system programmable Flash memory, 2 kB SRAM, and 1 kB EEPROM - excellent for embedded applications. Operating from 1.8 V to 5.5 V and reaching clock speeds up to 20 MHz, it offers flexibility across power and performance needs
In a compact 32-pin TQFP surface-mount package, it supports 23 general-purpose I/O pins along with communication interfaces I²C, SPI, USART and includes features like ADC (10-bit, 8 channels), three timers, and an 8-bit data bus. Rated for industrial temperature ranges (-40 °C to +85 °C) and packaged in tray form (Moisture Sensitive), it’s ideal for professional and industrial-grade electronics.
Built around the efficient AVR core, it delivers real-read-while-write EEPROM capabilities, programming lock features, and optional bootloader support - making it a standout for reliable, high-performance microcontroller applications.
| Parameter | Value |
|---|---|
| Core | AVR (8-bit) |
| Program Memory | 32 kB Flash |
| Data RAM | 2 kB SRAM |
| Data ROM (EEPROM) | 1 kB EEPROM |
| Max Clock Frequency | 20 MHz |
| Supply Voltage Range | 1.8 V – 5.5 V |
| ADC | 10-bit, 8 Channels |
| Timers | 3 (two 8-bit, one 16-bit) |
| Communication Interfaces | I²C, SPI, USART |
| I/O Pins | 23 |
| Package | TQFP-32 (SMD/SMT) |
| Temperature Range | −40 °C to +85 °C |
| Packaging | Tray |
| Series/Family | ATmega328P (megaAVR) |
| File Name | Action |
|---|---|
| ATMEGA328P-AU Datasheet (PDF) | Download |
