ATmega324PA - Microcontroller Microchip - Free user manual and instructions
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| Type of product | 8-bit Microcontroller |
| Manufacturer | Microchip Technology |
| Model | ATmega324PA |
| Architecture | AVR |
| Flash memory | 32 KB |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Operating voltage | 1.8V to 5.5V |
| Maximum clock speed | 20 MHz at 4.5V-5.5V, 10 MHz at 2.7V-4.5V, 4 MHz at 1.8V-2.7V |
| I/O pins | 32 |
| Interfaces | USART (2), SPI, TWI (I²C) |
| ADC | 8-channel, 10-bit |
| Timers | 2x 8-bit, 1x 16-bit |
| Package type | 44-pin TQFP |
| Dimensions (approx.) | 10 mm x 10 mm |
| Operating temperature | -40°C to +85°C |
| Power consumption (typical) | 1.1 mA at 1.8V, 1 MHz; 0.6 µA in power-down mode |
| Programming interface | ISP (In-System Programming) |
| Compatible with Arduino | Yes (e.g., using Arduino as ISP or standalone with ATmega324PA on custom board) |
Frequently Asked Questions - ATmega324PA Microchip
What is the ATmega324PA?
The ATmega324PA is a low-power, high-performance 8-bit AVR microcontroller from Microchip. It features 32 KB flash, 2 KB SRAM, and 1 KB EEPROM, with a wide operating voltage range and multiple communication interfaces.
What is the maximum clock speed of the ATmega324PA?
The maximum clock speed depends on the operating voltage: 20 MHz at 4.5V-5.5V, 10 MHz at 2.7V-4.5V, and 4 MHz at 1.8V-2.7V.
Can the ATmega324PA be used with Arduino?
Yes, it can be programmed using the Arduino IDE with an appropriate board definition or used as a standalone chip on a custom PCB. It is similar to the ATmega328P but with more I/O and memory.
What is the operating voltage range of the ATmega324PA?
The ATmega324PA operates from 1.8V to 5.5V, making it suitable for battery-powered applications.
How many I/O pins does the ATmega324PA have?
It has 32 general-purpose I/O pins, available in a 44-pin TQFP package.
What communication interfaces are available?
The ATmega324PA includes two USARTs (for serial communication), one SPI interface, and one TWI (I²C) interface.
What is the power consumption of the ATmega324PA?
Typical active power consumption is about 1.1 mA at 1.8V and 1 MHz. In power-down mode, consumption drops to about 0.6 µA.
How can I program the ATmega324PA?
It can be programmed via ISP (In-System Programming) using standard AVR programmers like the AVRISP mkII or USBasp. It also supports self-programming via bootloader.
Does the ATmega324PA have an ADC?
Yes, it features an 8-channel, 10-bit analog-to-digital converter (ADC).
What is the difference between ATmega324PA and ATmega324P?
The ATmega324PA is an improved version with picoPower technology, offering lower power consumption and enhanced features compared to the ATmega324P.
User questions about ATmega324PA Microchip
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USER MANUAL ATmega324PA Microchip
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Product information
Brand : Microchip
Model : ATmega324PA
Category : Microcontroller