AVR64DA28-I/SP

Overview

The AVR64DA28-I/SP is an 8-bit microcontroller from the AVR DA family, featuring a 28-pin SPDIP package. It operates at a maximum frequency of 24 MHz with a supply voltage range of 1.8V to 5.5V. The device includes 64 KB of in-system self-programmable Flash memory, 8 KB of SRAM, and 512B of EEPROM. Key peripherals include one 12-bit differential ADC, one 10-bit DAC, three analog comparators, up to six USARTs, two SPI interfaces, and one TWI interface. It supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Features a flexible low-power architecture with an Event System for CPU-independent inter-peripheral signaling.
• Includes intelligent analog subsystems such as a 12-bit differential ADC and a 10-bit DAC.
• Supports secure firmware upgrades through Program and Debug Interface Disable (PDID) mechanisms.
• Integrates advanced digital peripherals including Configurable Custom Logic (CCL) and Peripheral Touch Controller (PTC).

Applications

• Industrial control systems requiring real-time processing
• Home appliance products needing multi-voltage I/O operation
• Internet of Things (IoT) devices utilizing low-power architectures

Procurement Notes

Verify the specific ordering suffix 'SP' confirms the SPDIP package style and 'I' indicates the industrial temperature range. Ensure compatibility with existing PCB footprints designed for 28-pin dual in-line packages. Confirm that the required peripheral count matches the 28-pin variant specifications within the AVR DA family.

Selection Notes

Select this component when vertical migration within the AVR DA family is required without code modification. Choose this part if 64 KB of Flash and 8 KB of SRAM are sufficient for the application. Consider the SPDIP package only if through-hole mounting is necessary for the design constraints.

Part Context

This device belongs to the AVR DA(S) family, which offers full pin and feature compatibility across different memory sizes and pin counts. It shares the same core architecture and peripheral sets as other variants in the series, allowing for horizontal or vertical migration depending on memory and I/O requirements.

Replacement Considerations

AVR64DA28T-I/SS

FAQ

What is the function of the PDID feature?

Program and Debug Interface Disable (PDID) prevents access to the device's reprogrammable Flash memory over the UPDI, protecting against remote attacks and unauthorized code modifications.

Can the AVR64DA28 be migrated to other devices in the family?

Yes, vertical migration is possible without code modification as these devices are fully pin and feature compatible.