ATMEGA325A-MNR

Program Memory Size:	32KB (16K x 16)
Supplier Device Package:	64-QFN (9x9)
Package / Case:	64-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 105°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 8x10b
Voltage - Supply (Vcc/Vdd):	1.8 V ~ 5.5 V
RAM Size:	2K x 8
EEPROM Size:	1K x 8
Program Memory Type:	FLASH
Series:	AVR® ATmega
Number of I/O:	54
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity:	SPI, UART/USART, USI
Speed:	20MHz
Core Size:	8-Bit
Core Processor:	AVR
Part Status:	Active
Packaging:	Cut Tape (CT)

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Introduction to ATMEGA325A-MNR

The ATMEGA325A-MNR is a microcontroller designed and developed by Atmel Corporation. It is a popular choice for use in embedded systems due to its low cost and high performance. This microcontroller can be used in many different types of applications, ranging from medical equipment to process control. In this article, we will take a look at the ATMEGA325A-MNR’s application field and working principle.

Application Field of ATMEGA325A-MNR

The ATMEGA325A-MNR is a high performance and low power 8-bit AVR microcontroller. It is capable of executing instructions at up to 16MIPS with only a few external components. This makes it ideal for use in applications that require a compact and energy efficient solution such as industrial control, automotive, and medical equipment. The ATMEGA325A-MNR also features multiple on-chip peripherals and a wide range of features including A/D converters, timers, real-time clock and watchdog timer, integrated motor control, and I/O ports.The ATMEGA325A-MNR is available in two configuration options: TQFP and BGA packages. It is available in different temperature range options ranging from industrial (-40°C to +85°C) to extended (-55°C to +125°C). It also features a wide voltage range ranging from 1.8V to 5V. This makes it suitable for applications that require low power operation and can be powered with a wide range of voltages.

Working Principle of ATMEGA325A-MNR

The ATMEGA325A-MNR is an 8-bit AVR microcontroller based on the Harvard architecture. It contains a central processing unit (CPU) and various other components including random access memory (RAM), read-only memory (ROM), non-volatile memory (EEPROM), and input/output (I/O) ports.The CPU is responsible for all system operations and is capable of executing instructions at up to 16MIPS (million instructions per second). The onboard RAM and ROM are used to store data and instructions needed to execute the program code, respectively. The onboard EEPROM is used for storage of non-volatile data such as user settings. The I/O ports are used for interfacing the ATMEGA325A-MNR with external peripherals.The operating speed of the ATMEGA325A-MNR can be adjusted through software or hardware techniques, such as clock dividers. The clock frequency is determined by the external crystal oscillator and can range from 0 to 16MHz.

Conclusion

The ATMEGA325A-MNR is a low cost and high performance 8-bit AVR microcontroller. It is suitable for use in many different types of applications that require low power operation and high performance. It features a wide range of on-chip peripherals and can be powered with a wide range of voltages. Additionally, it has an adjustable operating speed and can execute instructions at up to 16MIPS with only a few external components.

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