Microchip Technology

ATMEGA325PA-AU  

Microcontrollers

The ATMEGA325PA-AU is a microcontroller unit (MCU) manufactured by Microchip Technology. It is a part of the ATmega family of 8-bit AVR microcontrollers, which are widely used in various embedded systems and applications.

Description:

The ATMEGA325PA-AU is a high-performance, low-power MCU featuring a rich set of integrated peripherals and advanced core architecture. It is based on the enhanced AVR core, which provides higher code density, faster execution, and lower power consumption compared to the standard AVR core.

Features:

1. CPU: 8-bit AVR RISC-based microcontroller with a maximum operating frequency of 16 MHz.
2. Memory: 32 KB of In-System Programmable Flash memory, 2 KB of In-System Programmable SRAM, and 1 KB of EEPROM.
3. I/O: 34 general-purpose I/O lines, which can be used for various purposes such as digital input/output, PWM, and communication interfaces.
4. ADC: 8-channel, 10-bit Analog-to-Digital Converter (ADC) with a maximum throughput of 100 ksps.
5. Communication interfaces: Two USARTs (Universal Synchronous/Asynchronous Receiver/Transmitter) for serial communication, one SPI (Serial Peripheral Interface) for synchronous serial communication, and one I2C (Inter-Integrated Circuit) for multi-master communication.
6. Timers: 4 timer/counters with various modes, including 8-bit, 16-bit, and 20-bit operation.
7. PWM: 4-channel PWM with independent frequency and duty cycle control.
8. Interrupts: 21 interrupt sources with nested interrupt vectors for efficient interrupt handling.
9. Power management: Power-saving features like System Clock Divider, Power Reduction Register, and Sleep Modes to optimize power consumption.
10. Security: JTAG (Joint Test Action Group) interface for debugging and programming, along with a bootloader option for secure firmware updates.

Applications:

The ATMEGA325PA-AU is suitable for a wide range of applications due to its versatile features and low-power characteristics. Some common applications include:

1. Industrial control and automation systems
2. Home automation and smart appliances
3. Medical devices and equipment
4. Portable electronic devices and wearables
5. Automotive control systems and accessories
6. IoT (Internet of Things) devices and sensors
7. Robotics and unmanned vehicles
8. Data acquisition and signal processing systems
9. Consumer electronics and multimedia devices
10. Security and surveillance systems

The ATMEGA325PA-AU's combination of performance, memory, and integrated peripherals make it a popular choice for developers looking to create efficient and reliable embedded systems.

ATMEGA325PA-AU Documents

Download datasheets and manufacturer documentation for ATMEGA325PA-AU

PCN Assembly/Origin :

Fabrication Site 27/Sep/2023      

Datasheets :

ATmega165A - 6450P Datasheet       ATmega165A - 6450P Summary      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       New Packing Material 02/Aug/2019      

Design Resources :

ATmega325 Development Tool Selector      

HTML Datasheet :

ATmega165A - 6450P Summary      

PCN Design/Specification :

Marking Chgs 11/Jul/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH