AVR32EA32-I/PT

Overview

The AVR32EA32-I/PT is an 8-bit microcontroller from the AVR EA series, featuring a 32 kB flash memory with true read-while-write capability and 4 kB SRAM. It operates at a maximum clock frequency of 20 MHz within a voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with PGA, a 10-bit DAC, two analog comparators, and multiple communication interfaces including three USARTs, SPI, and TWI. Packaged in TQFP-32, it supports temperatures from -40°C to +85°C.

Feature Summary

• Features true read-while-write flash memory for uninterrupted code execution during self-programming operations.
• Integrates a 12-bit ADC with programmable gain amplifier for high-resolution signal acquisition.
• Includes configurable custom logic blocks for hardware-based peripheral interconnection.
• Supports event system for independent peripheral-to-peripheral signal transmission.

Applications

• Industrial control systems requiring reliable data logging
• Smart metering applications with low power requirements
• Consumer electronics utilizing analog sensor inputs
• Battery-powered devices needing extended operational life

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts for TQFP-32 footprint. Confirm supply chain authenticity through authorized distributors to avoid counterfeit components. Check for any recent lifecycle notices regarding production status or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when simultaneous code execution and data storage updates are critical. Choose based on the requirement for integrated analog peripherals like PGA and DAC. Consider the 20 MHz processing speed relative to application latency needs. Evaluate pin count availability against interface requirements for USART, SPI, and TWI connections.

Part Context

This part belongs to the AVR32EA28/32/48 family, designed for cost-sensitive applications requiring enhanced analog performance. It utilizes the AVR CPU core with hardware multiplication capabilities. The series emphasizes flexibility through event-driven architectures and customizable logic, targeting modern embedded control tasks efficiently.

Replacement Considerations

Consult official cross-reference guides for compatible alternatives. Verify pinout and register compatibility if substituting within the same family. Ensure electrical specifications match original design constraints.