AVR64DD32-I/RXB

Overview

The AVR64DD32-I/RXB is an 8-bit microcontroller from the AVR DD family, featuring a 32-VQFN package. It integrates 64KB of self-programming flash memory, 8KB of SRAM, and 256 bytes of EEPROM. The device operates on a supply voltage range of 1.8V to 5.5V with a maximum clock frequency of 24MHz. Key peripherals include a 12-bit ADC with 23 channels, a 10-bit DAC, multiple timers (TCA, TCB, TCD), and communication interfaces such as USART, SPI, and I2C.

Feature Summary

• Supports multi-voltage I/O (MVIO) for direct interfacing with different power domains without external level shifters.
• Includes intelligent analog features like a zero-crossing detector (ZCD) and output-buffered DAC for signal conditioning.
• Features configurable custom logic (CCL) and an event system (EVSYS) to reduce system latency and CPU load.
• Provides functional safety compliance suitable for industrial and automotive applications under IEC 60730 Class B.

Applications

• Industrial control systems requiring real-time processing and noise immunity.
• Smart home appliances and consumer electronics with multi-voltage requirements.
• Internet of Things (IoT) terminal nodes utilizing low-power modes.
• Automotive body electronics and sensor interface modules.

Procurement Notes

Verify the specific suffix -I/RXB against official Microchip documentation to confirm the industrial temperature range (-40°C to +85°C or +125°C depending on exact revision) and VQFN-32 packaging. Ensure compatibility with UPDI programming tools. Cross-reference datasheet revisions for any pinout or electrical characteristic updates prior to final design approval.

Selection Notes

Select this component when designing 8-bit embedded systems requiring high peripheral density in a compact 32-pin package. It is ideal for applications needing MVIO capabilities to simplify board design across mixed-voltage domains. Consider the AVR DD family for its vertical migration path to other members within the series without code modifications.

Part Context

This part belongs to the AVR DD series, which emphasizes intelligent analog performance and functional safety. Unlike standard AVR devices, the DD series integrates advanced peripherals like ZCD and CCL, targeting complex control applications in industrial and automotive sectors while maintaining backward compatibility with existing AVR development ecosystems.

Replacement Considerations

AVR64DD32T-I/PT: Same core specifications but in a TQFP-32 package instead of VQFN-32. Verify footprint compatibility if mechanical constraints allow. Other AVR DD family members may offer pin-compatible alternatives with varying memory sizes.