Our ongoing coverage of Atmel’s comprehensive AVR portfolio has taken readers on a detailed MCU (microcontroller) tour this month. First, Bits & Pieces dove into the guts of Atmel’s AVR UC3 which is built around high-performance 32-bit AVR architecture and optimized for highly integrated applications.
We then spent some time with Atmel’s AVR XMEGA, an MCU designed for real-time performance, high integration and ultra-low power. And today we want to properly acquaint our readers with Atmel’s megaAVR microcontroller, which is well known for both capacity and performance.
“When your designs need some extra muscle, you need the megaAVR. Ideal for applications requiring large amounts of code, the megaAVR offers substantial program and data memories with performance up to 20 MIPS, with picoPower technology minimizing power consumption,” an Atmel engineering rep told Bits & Pieces. “All megaAVRs offer self-programmability for fast, secure, cost-effective in-circuit upgrades. You can even upgrade the flash while running your application.”
Indeed, the megaAVR family offers Atmel’s widest selection of devices in terms of memories, pin counts and peripherals. Meaning, engineers can choose from general-purpose devices to models with specialized peripherals like USB, or LCD controllers, or CAN, LIN and Power Stage Controllers.
More specifically, Atmel’s megaAVR family is equipped with on-chip flash, SRAM, internal EEPROM, SPI, TWI, USART, USB, CAN, LIN, watchdog timer, a choice of internal or external precision oscillator and general purpose I/O pins.
In terms of analog functions, the megaAVR boasts advanced analog capabilities, such as ADC, DAC, built-in temperature sensor and internal voltage reference, brown out detector, a fast analog comparator and a programmable analog gain amplifier. Simply put, the high level of integration allows designs with fewer external analog components.
And last, but certainly not least, megaAVR microcontrollers help accelerate the development process with advanced in-system programming and on-chip debug, while in-system programming works to simplify production line programming and field upgrades.
Interested in learning more? A full breakdown of our AVR portfolio is available here.