AVR64DA28T-I/SO

Overview

The AVR64DA28T-I/SO is an 8-bit microcontroller from the AVR DA family, featuring a 28-pin SOIC package. It operates at up to 24 MHz with 64 KB Flash, 8 KB SRAM, and 512 B EEPROM. The device includes a 12-bit ADC, 10-bit DAC, three analog comparators, three zero-cross detectors, and a Peripheral Touch Controller. It supports UPDI programming and functions within a 1.8V to 5.5V supply range.

Feature Summary

• Supports vertical migration across the AVR DA(S) family without code modification due to full pin and feature compatibility.
• Integrates intelligent analog features including a 12-bit differential ADC, 10-bit DAC, and window compare analog comparators.
• Provides advanced digital peripherals such as Configurable Custom Logic (CCL), Event System, and multiple communication interfaces.
• Includes 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 low-power architecture and event-driven signaling
• Automotive electronics operating in industrial temperature ranges

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging when sourcing components. Confirm that the 'I' suffix corresponds to the industrial temperature range of -40°C to +85°C. Ensure the 'SO' designation matches the required SOIC-28 physical footprint for PCB layout compatibility.

Selection Notes

Select this component for designs requiring high peripheral density in a compact 28-pin form factor. The device offers significant memory resources relative to its pin count. Consider the integrated PTC if capacitive sensing is needed without external controllers.

Part Context

This part belongs to the AVR DA(S) family, which utilizes the latest Microchip technologies for flexible and low-power operation. The family supports horizontal migration to reduce pin counts or vertical migration to increase features while maintaining software compatibility.

Replacement Considerations

AVR64DA28-I/SS

FAQ

What is the maximum clock frequency of the AVR64DA28T-I/SO?

The device runs at up to 24 MHz using the High-Precision internal high-frequency Oscillator (OSCHF).

Does the AVR64DA28 support simultaneous host and client TWI operation?

Yes, the TWI/I2C interface can operate simultaneously as host and client on different pins.