AVR64DD20T-I/SO

Overview

The AVR64DD20T-I/SO is an 8-bit microcontroller from the AVR DD family, featuring a 64 KB Flash memory, 8 KB SRAM, and 256 bytes of EEPROM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 12-bit ADC with 13 channels, a 10-bit DAC, two USARTs, SPI, TWI/I2C, and Multi-Voltage I/O (MVIO). It utilizes a SOIC-28 package and supports industrial temperature ranges.

Feature Summary

• Multi-Voltage I/O (MVIO) capability on PORT C for level shifting without external components
• Configurable Custom Logic (CCL) with four Look-up Tables for custom digital logic implementation
• Event System (EVSYS) enabling CPU-independent peripheral signaling to reduce latency
• Automated CRC Flash memory scan for enhanced data integrity verification

Applications

• Industrial control systems requiring robust noise immunity
• Smart home appliances with multi-voltage domain interfaces
• IoT devices utilizing low-power sleep modes and event-driven architectures
• Real-time control applications using hardware PWM and timers

Procurement Notes

Verify the specific ordering suffix 'T' corresponds to tape and reel packaging as defined in the datasheet nomenclature. Confirm the 'I' suffix indicates the industrial temperature range (-40°C to +85°C). Ensure the SOIC package style matches the required PCB footprint. Cross-reference the full part number against the manufacturer's current availability list to confirm production status.

Selection Notes

Select this component when 64 KB of program memory and 8 KB of RAM are required within a 28-pin form factor. The AVR64DD20 offers vertical migration compatibility with other AVR DD family members, allowing code reuse across different pin counts. Consider the MVIO feature if interfacing with peripherals operating at different voltage levels than the core logic.

Part Context

This device belongs to the AVR DD family, which integrates intelligent analog features and advanced digital peripherals. It shares architectural similarities with the AVR64DD28 and AVR64DD32, differing primarily in pin count and available I/O resources. The family emphasizes low power consumption and high performance through its RISC-based CPU architecture.

Replacement Considerations

AVR64DD28T-I/SO

FAQ

Does the AVR64DD20 support simultaneous host and client operation on its TWI interface?

Yes, the TWI/I2C module supports dual address match and can operate simultaneously as both host and client on different pins.

What is the maximum resolution of the Analog-to-Digital Converter (ADC)?

The device features a 12-bit differential ADC capable of sampling at up to 130 ksps.