AVR64DD20-I/SO

Overview

The AVR64DD20-I/SO is an 8-bit microcontroller from the Microchip AVR DD series, featuring a 24 MHz AVR CPU core. It integrates 64 kB of system programmable flash memory, 8 kB of SRAM, and 256 B of EEPROM. The device operates within a voltage range of 1.8 V to 5.5 V and supports up to 18 general-purpose I/O pins in its SOIC-20 package. Key peripherals include a 12-bit ADC with multiple channels, a 10-bit DAC, and comprehensive communication interfaces such as SPI, TWI, and USART.

Feature Summary

• Integrates intelligent analog peripherals including a high-resolution ADC and DAC for precise signal processing.
• Supports multi-voltage I/O (MVIO) to enable direct interfacing with devices operating at different supply voltages without external level shifters.
• Features a robust event system and configurable custom logic to reduce CPU intervention and minimize system latency.

Applications

• Industrial control systems requiring real-time processing and noise immunity.
• Smart home appliances utilizing multi-domain power management.
• IoT sensor nodes needing low-power operation and efficient data acquisition.

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pin count and peripheral availability. Cross-reference datasheet revisions to validate electrical characteristics and timing parameters before finalizing procurement specifications.

Selection Notes

Select this component when application requirements demand high integration of analog features alongside substantial program memory. The MVIO capability makes it suitable for designs interfacing with mixed-voltage sensors or actuators. Consider the 24 MHz performance ceiling and available I/O count relative to system complexity.

Part Context

This part belongs to the AVR DD family, which emphasizes intelligent analog capabilities and flexible I/O configurations. The series allows for vertical migration between pin counts while maintaining code compatibility. It targets applications requiring advanced control functions with reduced external component counts.

Replacement Considerations

AVR32DD20-I/SO: Offers similar functionality with reduced memory capacity (32 kB Flash).

FAQ

Does the AVR64DD20 support bidirectional level shifting?

Yes, the Multi-Voltage I/O (MVIO) feature enables true bidirectional communication with devices operating at different supply voltages without external level translators.

What is the maximum clock frequency of this MCU?

The AVR CPU core operates at a maximum frequency of 24 MHz.