AVR32DA28S-E/SP

Overview

The AVR32DA28S-E/SP is an 8-bit microcontroller from Microchip Technology, featuring the AVR core. It includes 32 kB of Flash program memory and 4 kB of SRAM data memory. The device operates at a maximum clock frequency of 24 MHz and supports a supply voltage range of 1.8 V to 5.5 V. It provides 23 I/O pins in an SPDIP-28 package. Peripheral interfaces include three USARTs, two SPI modules, and one TWI interface. Analog capabilities consist of a 12-bit ADC with multiple channels, a 10-bit DAC, and comparators.

Feature Summary

• Integrates high-performance analog peripherals including a 12-bit ADC and 10-bit DAC for signal processing applications.
• Supports flexible communication through multiple serial interfaces such as USART, SPI, and TWI.
• Features robust safety mechanisms including error correction code (ECC) protection for program memory.

Applications

• Industrial control systems requiring reliable data acquisition
• Smart sensor nodes with analog input processing
• Embedded devices needing secure code execution with ECC

Procurement Notes

Verify the specific suffix 'S' against official Microchip documentation to confirm pinout or electrical characteristics distinct from standard variants. Ensure compatibility with existing PCB footprints and voltage levels before integration. Cross-reference the datasheet revision date to ensure all errata and updates are accounted for during design validation.

Selection Notes

Select this component when a balance of moderate memory capacity and rich analog peripheral sets is required. It is suitable for designs needing precise analog-to-digital conversion alongside robust digital communication interfaces. Consider the SPDIP package for prototyping or applications requiring through-hole mounting capabilities.

Part Context

This part belongs to the AVR32DA family, which emphasizes safety and analog integration within 8-bit architecture. It shares architectural similarities with other DA series members but offers specific memory and I/O configurations tailored for compact embedded solutions. The inclusion of ECC distinguishes it in contexts where data integrity is critical.

Replacement Considerations

AVR32DA28-E/SP is a direct equivalent variant within the same product line. Verify package tolerance and marking differences if substituting between SOIC and SPDIP formats. No cross-family replacement is recommended without significant redesign due to peripheral differences.