AVR64EA32-I/RXB

Overview

The AVR64EA32-I/RXB is an 8-bit microcontroller from the AVR EA family, featuring a 32-pin VQFN package. It includes 64 KB of Flash memory with read-while-write capability, 6 KB of SRAM, and 512 bytes of EEPROM. The device operates at clock speeds up to 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit differential ADC with PGA, a 10-bit DAC, two analog comparators, three USARTs, one SPI, and one TWI interface.

Feature Summary

• Features a flexible low-power architecture with Event System for CPU-independent inter-peripheral signaling
• Includes accurate analog subsystems such as a 12-bit differential ADC with programmable gain amplifier and window compare functions
• Supports vertical migration without code modification due to full pin and feature compatibility within the family

Applications

• Real-time control systems
• Sensor nodes
• Secondary safety monitoring applications

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature rating. Ensure the component matches the required industrial temperature range specifications before integration into the design.

Selection Notes

Select this model for designs requiring high peripheral density in a compact 32-pin footprint. Consider the extended I/O count and advanced analog features compared to lower-memory variants in the same series.

Part Context

This part belongs to the AVR64EA28/32/48 series, which utilizes the AVR CPU with a hardware multiplier. The series offers scalable memory options across different pin counts while maintaining architectural consistency.

Replacement Considerations

AVR64EA32-A/RXB