AVR32EA28-I/SP

Overview

The AVR32EA28-I/SP is an 8-bit microcontroller from the AVR EA family, featuring a CPU with hardware multiplier running at up to 20 MHz. It includes 32 KB of in-system programmable Flash memory with read-while-write capability, 4 KB of SRAM, and 512 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperature ranges (-40°C to +85°C). Key peripherals include two 16-bit Timer/Counter Type A units, four 16-bit Timer/Counter Type B units, three USARTs, one SPI, one TWI/I2C interface, a 12-bit differential ADC, a 10-bit DAC, and two analog comparators.

Feature Summary

• AVR CPU with single-cycle I/O register access and two-cycle hardware multiplier
• Event System for CPU-independent inter-peripheral signaling
• Configurable Custom Logic (CCL) with programmable Look-up Tables
• Single pin Unified Program and Debug Interface (UPDI)

Applications

• Closed-loop control systems
• Sensor nodes
• Secondary safety monitoring applications

Procurement Notes

Verify the datasheet revision status, as the provided source indicates preliminary data. Confirm that the SPDIP package variant matches the specific -I/SP suffix requirements for your manufacturing process. Ensure compatibility with the UPDI programming interface during integration planning.

Selection Notes

Select this component for designs requiring vertical migration within the AVR EA family without code modification. It is suitable for applications needing flexible low-power architectures and advanced digital peripherals. Consider the 28-pin footprint when optimizing board layout for feature availability.

Part Context

This part belongs to the AVR EA family, which utilizes Microchip's latest technologies for flexible low-power operation. The family offers vertical migration capabilities across different pin counts and memory sizes while maintaining full pin and feature compatibility.

Replacement Considerations

AVR32EA28-I/SS

FAQ

What are the available sleep modes?

The device supports Idle mode with all peripherals running, Standby mode with configurable selected peripherals, and Power-Down mode with full data retention.

Does the device support simultaneous host and client operations on the TWI interface?

Yes, the TWI/I2C interface can operate simultaneously as a host and client on different pins, supporting independent dual-mode operation.