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AVR vs ARM:Microcontroller: Microcontroller is a small, low cost and self-contained computer on a chip which can utilize as an embedded system. Usually, it is low power requirements since many devices they control are battery-operated. It is dedicated to one task and rune one specific program. It is utilizing in consumer electronics, computer peripherals, car engines, and test or measurement equipment. It is a tiny integrated circuit in which size and weight are negligible. In fact, an Advanced Microcontroller can be used to manage the small mobile robot, an automatic washing machine, and a security system. The microcontroller includes such as
- An 8 bit or 16-bit microprocessor
- Programmable ROM and flash memory
- Signal and Timers generators
- A little measure of RAM
- Serial and parallel Input/Output
- Digital to Analog conversion and Analog to Digital conversion
AVR Microcontroller
As a matter of fact, this microcontroller was developed by Alf-Egil Bogen and Vegard Wollan from Atmel. It is classified into three types such as TinyAVR, MegaAVR, and XmegaAVR.
TinyAVR- It is in small size, less memory and suitable for simple applications.
MegaAVR-This is the most popular AVR having a good amount of memory and a higher number of inbuilt peripherals and which is suitable for moderate to complex applications.
XmegaAVR- It is mainly for complex applications and requires huge program memory and high speed.
Although, there are many AVR Microcontroller family such as ATmega8, ATmega16, ATmega32, etc. Many applications in AVR which are used in home automation, touch screen, medical devices, automobiles, and defense.
ARM Microcontroller
ARM which is stands for Advanced RISC (Reduced Instructions Set Computer) microcontroller. Acron computer organization introduced the ARM. It is the family of microcontroller that is developed by different manufacturers such as Motorola, ST Microelectronics, etc. It is the most popular microcontroller in an embedded system, and most industries prefer the ARM Training since it consists of large features to implement products with an excellent appearance. This type of microcontrollers is cost sensitive and high-performance devices. It can be used in a wide range of application such as wireless networking, sensors, automotive body system and industrial instrument control system, smartphones, tablets, mobile devices such as wearable.
AVR and ARM Microcontroller
| AVR Microcontroller | ARM Microcontroller | |
|---|---|---|
| Width | 8/32 bit | 32-bit and also available in 64-bit |
| Speed | 1 clock/ instruction cycle | 1 clock / instruction cycle |
| Memory | Flash, SRAM, and EEPROM | Flash, SDRAM and EEPROM |
| ISA | RISC architecture | RISC architecture |
| Memory Architecture | Modified | Modified Harvard architecture |
| Power consumption | Low | Low |
| Manufacturer | Atmel | Apple, Samsung Electronics and TI etc |
| Communication Protocols | UART, USART, SPI, I2C | UART, USART, LIN, I2C, SPI, CAN, USB, Ethernet, I2S, DSP, SAI |
