Overview
The ATmega324PA-AUR is a low-power CMOS 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. This microcontroller is designed to execute powerful instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz. This allows system designers to optimize power consumption versus processing speed effectively. The ATmega324PA is part of the AVR family, known for its rich instruction set and efficient architecture, making it suitable for a wide range of applications.
Key Specifications
| Specification | Value |
|---|---|
| Flash Memory | 32K bytes (In-System Programmable with Read-While-Write capabilities) |
| EEPROM | 1K bytes |
| SRAM | 2K bytes |
| General Purpose I/O Lines | 32 |
| General Purpose Working Registers | 32 |
| Timer/Counters | Three flexible Timer/Counters with compare modes and PWM |
| USARTs | Two programmable Serial USARTs |
| Serial Interface | Byte-oriented Two-wire Serial Interface, SPI serial port |
| ADC | 8-channel, 10-bit ADC with optional differential input stage and programmable gain |
| Watchdog Timer | Programmable Watchdog Timer with Internal Oscillator |
| Operating Voltage | 1.8 - 5.5V |
| Speed Grades | 0 - 4MHz @ 1.8 - 5.5V, 0 - 10MHz @ 2.7 - 5.5V, 0 - 20MHz @ 4.5 - 5.5V |
| Power Consumption | Active: 0.4mA @ 1MHz, 1.8V, 25°C; Power-down Mode: 0.1µA; Power-save Mode: 0.6µA (including 32kHz RTC) |
Key Features
- Rich instruction set with 32 general purpose working registers directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle.
- Real Time Counter (RTC) with separate oscillator.
- Six PWM channels.
- On-chip Analog Comparator and programmable gain ADC.
- IEEE std. 1149.1 compliant JTAG test interface for on-chip debug and programming.
- Six software selectable power saving modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby.
- Internal Calibrated RC Oscillator and external interrupt sources.
Applications
The ATmega324PA-AUR is versatile and can be used in a variety of applications, including but not limited to:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Wireless communication devices
- Robotics and automation
Its low power consumption and high processing efficiency make it particularly suitable for battery-powered devices and applications requiring real-time data processing.
Q & A
- What is the flash memory capacity of the ATmega324PA-AUR?
The ATmega324PA-AUR has 32K bytes of In-System Programmable Flash memory with Read-While-Write capabilities. - How much EEPROM does the ATmega324PA-AUR have?
The ATmega324PA-AUR has 1K bytes of EEPROM. - What is the SRAM capacity of the ATmega324PA-AUR?
The ATmega324PA-AUR has 2K bytes of SRAM. - How many general purpose I/O lines does the ATmega324PA-AUR have?
The ATmega324PA-AUR has 32 general purpose I/O lines. - What are the operating voltage ranges for the ATmega324PA-AUR?
The operating voltage ranges for the ATmega324PA-AUR are from 1.8V to 5.5V. - What are the speed grades of the ATmega324PA-AUR?
The speed grades are 0 - 4MHz @ 1.8 - 5.5V, 0 - 10MHz @ 2.7 - 5.5V, and 0 - 20MHz @ 4.5 - 5.5V. - Does the ATmega324PA-AUR support JTAG debugging?
Yes, the ATmega324PA-AUR supports IEEE std. 1149.1 compliant JTAG testing and debugging. - What power saving modes are available on the ATmega324PA-AUR?
The ATmega324PA-AUR has six software selectable power saving modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby. - What is the power consumption of the ATmega324PA-AUR in active mode?
In active mode at 1MHz, 1.8V, and 25°C, the power consumption is 0.4mA. - Can the ATmega324PA-AUR be used in real-time applications?
Yes, the ATmega324PA-AUR includes a Real Time Counter (RTC) with a separate oscillator, making it suitable for real-time applications.
