AVR64EA32-E/PT

Overview

The AVR64EA32-E/PT is an 8-bit microcontroller from the AVR EA family, featuring a 32-pin TQFP package. It operates at clock speeds up to 20 MHz and includes 64 KB of Flash memory with read-while-write capability, 6 KB of SRAM, and 512 bytes of EEPROM. The device supports a supply voltage range of 1.8 V to 5.5 V and offers 27 general-purpose I/O pins. 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

• AVR CPU with hardware multiplier running at up to 20 MHz
• Integrated Event System for CPU-independent peripheral signaling
• Configurable Custom Logic (CCL) with programmable Look-up Tables
• Extended temperature operation range (-40°C to +125°C)

Applications

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

Procurement Notes

Verify the 'E' suffix indicates extended temperature range (-40°C to +125°C) and '/PT' denotes the TQFP-32 package. Confirm datasheet revision DS40002443A applies to this specific part number. Ensure compatibility with UPDI programming interfaces and check for any preliminary status notes in official documentation before finalizing procurement.

Selection Notes

Select this component when extended industrial temperature ratings are required alongside high-performance analog features. The 32-pin form factor balances pin count with compact footprint requirements. Consider the integrated PGA and differential ADC for precision signal acquisition applications where external amplification would otherwise be necessary.

Part Context

This MCU belongs to the AVR EA family, designed for flexible low-power architectures. It shares pin and feature compatibility within the series, allowing vertical migration without code modification. The device integrates advanced digital peripherals and accurate analog subsystems suitable for demanding embedded environments.

Replacement Considerations

AVR64EA32-I/PT serves as a direct functional substitute with identical specifications except for the reduced operating temperature range (-40°C to +85°C). Verify thermal constraints of the target application before substituting the industrial grade variant.