Choosing a Microcontroller Criteria

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Questions and Answers

What are the three criteria for choosing a microcontroller according to Dr. Jaber Yamani?

Meeting the computing needs of the task efficiently and cost effectively, availability of software development tools, wide availability and reliable sources of the microcontrollers

Name two families of microcontrollers commonly used in different applications.

8051, AVR, and PIC microcontrollers

Who chooses the chip for an application?

The application chooses the chip

What are some factors that should be considered when choosing a microcontroller?

Number of pins, package, cost of the chip, peripherals, operating voltage, current consumption, and more Signup and view all the answers

Which microcontroller is more application oriented, PIC or AVR?

PIC is more application oriented Signup and view all the answers

What mainly differs between the variants of AVR microcontrollers?

Mainly pin #s and flash memory differ Signup and view all the answers

What makes AVR microcontroller a good choice for beginners?

Easy to code, easy to program, powerful and inexpensive, hobbyist friendly, and fast execution. Signup and view all the answers

Who designed the basic architecture of AVR?

Alf-Egil Bogen and Vegard Wollan Signup and view all the answers

What does AVR stand for?

It is commonly accepted that AVR stands for Alf (Egil Bogen) and Vegard (Wollan)'s Risc processor Signup and view all the answers

How many categories of AVR microcontrollers are there?

Three categories: TinyAVR, MegaAVR, and XmegaAVR Signup and view all the answers

What is the first microcontroller based on the AVR architecture?

AT90S8515 Signup and view all the answers

What is the first microcontroller to hit the commercial market based on the AVR architecture?

AT90S1200 Signup and view all the answers

What are the three categories of AVR microcontrollers suitable for?

<ol> <li>TinyAVR – simpler applications, 2. MegaAVR – moderate to complex applications, 3. XmegaAVR – complex applications requiring large program memory and high speed</li> </ol> Signup and view all the answers

What is the name of the microcontroller which was the first to hit the commercial market based on the AVR architecture?

AT90S1200 Signup and view all the answers

What in-built peripherals do most AVR chips include?

Most AVR chips include UART and ADC (Analog to Digital Converter) Signup and view all the answers

What was the architecture of the AVR microcontroller designed to be?

It was designed to be an 8-bit RISC single-chip microcontroller with Harvard architecture Signup and view all the answers

Study Notes

Microcontroller Selection Criteria

Three criteria for choosing a microcontroller: cost, performance, and power consumption.
Chip selection for an application is typically made by systems designers or engineers.

Microcontroller Families

Common families include PIC (Peripheral Interface Controller) and AVR (Alf and Vegard's Risc processor).

Considerations for Microcontroller Choice

Factors to consider: application requirements, processing speed, memory, I/O capabilities, power supply needs, and development tools available.

Comparison of Microcontroller Types

AVR microcontrollers are generally considered more application-oriented compared to PIC microcontrollers.

Variants of AVR Microcontrollers

Variants of AVR microcontrollers mainly differ in terms of processing power, memory size, number of pins, and peripheral interfaces.

Beginner-Friendliness of AVR

AVR microcontrollers are favored by beginners due to their simple architecture and extensive support resources available.

AVR Architecture Development

The basic architecture of the AVR was designed by Atmel, specifically by Alf-Egil B. Frølund and Vegard Wollan.

Meaning of AVR

AVR stands for Alf and Vegard's Risc processor.

Categories of AVR Microcontrollers

There are typically three categories of AVR microcontrollers: low-power, standard, and high-performance.

Historical Milestones in AVR Microcontrollers

The first microcontroller based on the AVR architecture is the AT90Sxxxx series.
The AT90S1200 was the first commercial microcontroller to enter the market based on the AVR architecture.

AVR Microcontroller Categories and Applications

The three categories of AVR microcontrollers suit low-power applications, general-purpose tasks, and high-performance needs.

In-built Peripherals in AVR Microcontrollers

Most AVR chips include in-built peripherals such as timers, ADCs (Analog-to-Digital Converters), and communication interfaces (like UART, SPI).

Design Philosophy of AVR Architecture

The AVR microcontroller architecture was designed to be efficient, allowing for a balance between performance and low power consumption.

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Description

This quiz covers the three essential criteria for selecting a microcontroller, including meeting computing needs, availability of software development tools, and wide availability from reliable sources. The text also mentions the families of microcontrollers.