AVR64DA64-I/MR

Overview

The AVR64DA64-I/MR is an 8-bit microcontroller from the AVR DA family, utilizing the AVR CPU with a hardware multiplier. It operates at a maximum clock frequency of 24 MHz and features 64 KB of Flash memory, 8 KB of SRAM, and 512 B of EEPROM. The device provides up to 55 programmable general-purpose I/O pins and includes advanced peripherals such as six USARTs, two SPI interfaces, two TWI/I2C interfaces, a 12-bit differential ADC with 22 channels, three analog comparators, one 10-bit DAC, and a Peripheral Touch Controller (PTC). It supports industrial temperature ranges (-40°C to +85°C) and is housed in a VQFN-64 package.

Feature Summary

• Features a flexible low-power architecture with an Event System for CPU-independent inter-peripheral signaling.
• Includes intelligent analog subsystems with a 12-bit differential ADC, window compare analog comparators, and a 10-bit DAC.
• Supports secure firmware upgrades via Program and Debug Interface Disable (PDID) mechanisms.
• Integrates a Peripheral Touch Controller (PTC) with Driven Shield+ technology for capacitive touch applications.

Applications

• Industrial control systems requiring real-time processing
• Smart home appliances with multi-voltage I/O capabilities
• IoT devices utilizing capacitive touch interfaces
• Automotive electronics operating within industrial temperature ranges

Procurement Notes

Verify the specific ordering suffix 'MR' corresponds to the VQFN-64 package style when sourcing components. Confirm that the 'I' suffix indicates the industrial temperature range of -40°C to +85°C. Ensure compatibility with existing designs by checking pin and feature compatibility within the AVR DA family for vertical migration without code modification. Validate that the required peripheral count matches the 64-pin variant specifications.

Selection Notes

Select this component when high pin counts and extensive peripheral integration are required within the AVR DA family. It is suitable for applications needing multiple communication interfaces like six USARTs and two SPIs. Consider this model over smaller variants if the design requires up to 55 I/O pins or 22 ADC channels. Verify power supply requirements fall within the 1.8V to 5.5V range for optimal operation across all peripherals.

Part Context

This device belongs to the AVR64DA28/32/48/64(S) series, which offers vertical migration capabilities without code changes. The AVR DA family utilizes latest Microchip technologies for low-power and flexible architectures. It shares core CPU features with other family members but scales peripheral availability based on pin count. The 64-pin variant provides the highest I/O density and peripheral set in the 64KB Flash segment of this family.

Replacement Considerations

AVR64DA48-I/MR

FAQ

What is the maximum number of ADC channels available on the AVR64DA64?

The AVR64DA64 provides 22 channels for its 12-bit differential Analog-to-Digital Converter (ADC).

Does the AVR64DA64 support simultaneous host and client operations on TWI?

Yes, the device includes two TWI interfaces that can operate simultaneously as host and client on different pins.

How many Zero-Cross Detectors (ZCD) are included in this package?

The 64-pin variant includes three Zero-Cross Detectors (ZCD).