ATMEGA162-16PJ

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ATMEGA162-16PJ is a powerful yet low-cost microcontroller family introduced by Atmel Inc., renowned semiconductor manufacturer. It is designed for a wide array of applications like motor control, security systems, data acquisition, embedded systems, communication and automation. The device is based on ATmega162 core and has an on-chip flash memory with 2-16kByte and 512 bytes RAM.

ATMEGA162-16PJ features a complete 16-bit AVR microcontroller which is the largest family among AVR micro controller currently. The device can be operated at a speed of 12Mhz and has a 8K bytes of Flash memory for program storage. Besides, it also provides extensive pins for data and address lines to communicate peripherals or external devices. The high pin count of the device is mainly set up for board as well as external devices integration. This allows ATMEGA162-16PJ to become a universal building block for different kind of embedded systems.

It contains 4x16bit Timer/Counter with prescaling feature, which makes it better at controlling the system components accurately. Right time processing is mainly used in motion control, Robotics, safety critical system and multimedia. Internal USART and SPI features provide an advantage for communicating purposes. In addition to that a wide variety of ADC channels is integrated with the device.

The overall design of the device is quite sophisticated centered on a four-stage pipeline architecture for maximal solution for the featured AVR micro controller family. Furthermore, extensive peripherals and integrated functions just adds to its microcontrollers’ ability to handle multiple system requirements.

The main objective of the device is to provide a very powerful and cost-effective solution to control different kind of system components. ATMEGA162-16PJ also incorporates on-chip debugging systems that increase development time and reduce the cost. This device can significantly reduce system cost and speed up development process of many different projects.

In terms of working principle, ATMEGA162-16PJ is based on Harvard Architecture. Therefore the machine cycle architecture of the microcontroller has two distinct bus structures: one for the program and another for data. All the data is stored in the data memory and instruction sets are kept in the program memory. When the device is powered it follows a fetch-decode-execute cycle. This indicates that fetching the instruction from the program memory, decoding the instruction and finally executing the instruction is needed.

ATMEGA162-16PJ is the choice for many different applications. An interesting application example is designing a mailbox security system. This device can be programmed to detect any kind of door or window opening, which it will then take appropriate measures. This kind of application makes full use of the internal pins as well as embedded system. In addition, utilizing the built-in motor drivers, determining the current location of the mailbox is possible.

In short, ATMEGA162-16PJ microcontroller is a great way to build the base for embedded systems. This device provides the necessary modules which have the ability to implement the system quickly with low development cost. With the robust peripheral and easy to use documentation it can be seen as an attractive solution for embedded engineers.

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