Microchip ATMEGA162V-8AUR: A Comprehensive 8-bit AVR Microcontroller Datasheet and Application Overview
The Microchip ATMEGA162V-8AUR stands as a powerful and versatile member of the renowned AVR family of 8-bit RISC microcontrollers. Engineered for complex applications requiring a rich set of peripherals and robust performance, this microcontroller is particularly suited for industrial control, automotive systems, and advanced consumer electronics. Operating at a voltage of 2.7V to 5.5V and a speed of 8MHz with the -8AUR variant, it delivers an optimal balance of processing power and energy efficiency.
Core Architecture and Memory
At the heart of the ATmega162V lies a high-performance AVR RISC CPU core. The architecture executes most instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz, which significantly enhances its power efficiency and processing speed compared to conventional CISC microcontrollers. It is equipped with 16KB of In-System Self-Programmable Flash program memory, 1KB of internal SRAM, and 512 bytes of EEPROM for non-volatile data storage. This substantial memory configuration allows for handling larger programs and complex data sets with ease.
Key Peripherals and Features
The device's strength is its extensive suite of integrated peripherals, which reduces external component count and simplifies system design.
Dual USARTs: The presence of two independent USARTs (Universal Synchronous/Asynchronous Receiver/Transmitter) is a defining feature, enabling simultaneous communication with multiple devices such as PCs, modems, or other microcontrollers via RS-232, RS-485, or other serial protocols.
Four 8-bit I/O Ports (Port A, B, C, D): Offering a total of 35 programmable I/O lines, the device provides ample connectivity for sensors, actuators, displays, and keypads.
JTAG Interface: This supports not only boundary-scan capabilities for advanced PCB testing but also complete on-chip debug functionality, drastically simplifying the development and debugging process.
Timers/Counters: It includes four flexible timers/counters (two 8-bit and two 16-bit) with PWM support, making it ideal for real-time control, waveform generation, and measurement applications.
Other Features: An 8-channel, 10-bit ADC; a programmable Watchdog Timer; and multiple power-saving sleep modes further contribute to its versatility in a wide range of embedded designs.
Application Overview
The ATMEGA162V-8AUR is designed for applications demanding multiple communication channels and robust control capabilities.
Industrial Control Systems: Its dual USARTs and numerous I/Os make it perfect for acting as a central controller in factory automation, process control, and data acquisition systems, where it can manage multiple communication buses and sensor networks concurrently.
Automotive Electronics: Suitable for body control modules, dashboard displays, and sensor interfaces, benefiting from its wide operating voltage range and communication features.
Advanced User Interfaces: The combination of ample I/O and PWM outputs allows it to drive complex multi-digit seven-segment displays, LCDs, and tactile feedback systems.
Networking and Communication Gateways: It can function as a protocol converter or a bridge between different serial communication standards (e.g., UART to SPI/I2C).
ICGOODFIND Summary:
The Microchip ATMEGA162V-8AUR is a highly integrated and capable 8-bit microcontroller. Its standout feature is the dual USART setup, a rarity that provides significant design flexibility for communication-heavy applications. Coupled with a large memory footprint, a JTAG interface for debugging, and a comprehensive set of standard peripherals, it remains a powerful and cost-effective solution for developers navigating complex embedded system challenges.
Keywords:
1. AVR Microcontroller
2. Dual USART
3. JTAG Interface
4. In-System Programmable
5. Embedded Control
