AVR32DD28-I/SP

Overview

The AVR32DD28-I/SP is an 8-bit microcontroller from the AVR DD family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 32 KB of in-system self-programmable Flash memory, 4 KB of SRAM, and 256 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. It is housed in a 28-pin SPDIP package.

Feature Summary

• Multi-Voltage I/O (MVIO) on Port C enables bidirectional communication with devices operating at different voltage levels without external level shifters.
• Configurable Custom Logic (CCL) provides four programmable Look-up Tables for implementing custom digital logic functions independently of the CPU.
• Event System allows direct inter-peripheral signaling to reduce CPU intervention and system latency during data transfers or triggers.

Applications

• Industrial control systems requiring robust noise immunity and multi-voltage domain interfacing
• Smart home appliances utilizing low-power architectures and intelligent analog features
• IoT nodes leveraging integrated wireless-ready peripherals and event-driven processing

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the 'SP' suffix indicates the 28-lead Shrink Package Dual In-line (SPDIP) form factor. Ensure compatibility with existing designs by checking pinout alignment against other AVR DD family members if migrating from different pin counts.

Selection Notes

Select this component when 32 KB of program memory and 4 KB of RAM are required alongside Multi-Voltage I/O capabilities. It is suitable for applications needing precise analog measurements via the 12-bit ADC and waveform generation through TCA/TCD timers. Consider vertical migration paths within the AVR DD family for future scalability without code changes.

Part Context

This part belongs to the AVR DD family, which emphasizes low power consumption and advanced peripheral integration. The series supports seamless vertical migration between devices with varying pin counts and memory sizes while maintaining full pin and feature compatibility.

Replacement Considerations

AVR16DD28-I/SP offers identical pinouts but with reduced 16 KB Flash and 2 KB SRAM. AVR64DD28-I/SP provides increased 64 KB Flash and 8 KB SRAM with the same footprint. Both maintain functional equivalence for code portability.