AVR32DD28-E/STX

Overview

The AVR32DD28-E/STX is an 8-bit microcontroller from the AVR DD family, featuring a 32 KB Flash memory, 4 KB SRAM, and 256 bytes of EEPROM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC, 10-bit DAC, analog comparator, zero-cross detector, and multi-voltage I/O (MVIO). It utilizes a VQFN-28 package and supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Multi-Voltage I/O (MVIO) capability on PORT C for interfacing with different power domains without external level shifters
• Configurable Custom Logic (CCL) with four Look-up Tables for hardware logic implementation
• Event System (EVSYS) enabling CPU-independent peripheral signaling to reduce latency
• Integrated Brown-out Detector (BOD) and automated CRC Flash scan for system reliability

Applications

• Industrial control systems requiring real-time processing
• Smart home appliances with mixed-voltage sensor interfaces
• IoT devices utilizing low-power sleep modes
• Automotive applications meeting functional safety standards

Procurement Notes

Verify the ordering suffix 'E' confirms the extended temperature rating (-40°C to +125°C) and 'STX' specifies the VQFN-28 package. Confirm that the specific revision matches the required datasheet version DS40002315. Ensure compatibility with UPDI programming tools for development and production.

Selection Notes

Select this part when vertical migration within the AVR DD family is needed without code modification. Choose the extended temperature grade for harsh environments. Verify that the 32 KB Flash and 4 KB SRAM meet application requirements compared to the 16 KB or 64 KB variants in the same pin count.

Part Context

This component belongs to the AVR DD family, which offers full pin and feature compatibility across 14, 20, 28, and 32-pin packages. It shares the same architecture as the AVR64DD28 and AVR16DD28, allowing seamless upgrades or downgrades in memory size while maintaining identical pinouts.

Replacement Considerations

AVR32DD28-I/STX (Industrial temperature grade)

FAQ

What is the maximum operating frequency?

The AVR32DD28-E/STX supports clock speeds up to 24 MHz.

Does this device support multi-voltage I/O?

Yes, it features Multi-Voltage I/O (MVIO) on PORT C, allowing bidirectional communication with devices operating at different voltage levels.

How many general-purpose I/O pins are available?

The device provides up to 22 programmable I/O pins in the 28-pin configuration.