AVR64DA64S-E/PT

Overview

The AVR64DA64S-E/PT is an 8-bit microcontroller from the AVR DA(S) family, utilizing the AVR CPU with a hardware multiplier. It operates at up to 24 MHz and features 64 KB of Flash memory, 8 KB of SRAM, and 512 B of EEPROM. The device includes a 12-bit differential ADC with 22 channels, three analog comparators, one 10-bit DAC, and six USARTs. It supports UPDI for programming and debugging. The 'E' suffix indicates an extended temperature range of -40°C to +125°C, while 'S' denotes the inclusion of the Program and Debug Interface Disable (PDID) security feature.

Feature Summary

• Includes Program and Debug Interface Disable (PDID) to prevent unauthorized access to reprogrammable Flash memory over UPDI after activation.
• Features an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic (CCL) with programmable Look-up Tables.
• Supports vertical migration within the AVR DA(S) family without code modification due to full pin and feature compatibility.

Applications

• Secure firmware upgrades requiring protection against remote attacks
• Industrial control systems operating in extended temperature environments
• IoT devices needing authenticated application software updates

Procurement Notes

Verify that the ordering suffix 'S' is required for the specific Project and Debug Interface Disable (PDID) functionality. Confirm the 'E' suffix matches the operational temperature requirements of the target environment. Ensure the TQFP package style aligns with the PCB footprint design. Cross-reference the datasheet revision to confirm peripheral availability.

Selection Notes

Select this variant when both extended temperature operation (-40°C to +125°C) and enhanced security via PDID are necessary. Compare with non-S variants if PDID is not needed. Consider the 64-pin count for maximum I/O availability compared to smaller packages in the same family.

Part Context

This component belongs to the AVR DA(S) family, which offers flexible low-power architecture. The 'S' designation specifically identifies devices equipped with the PDID security mechanism. The 'E' rating extends the industrial temperature range to support harsher operating conditions compared to standard industrial parts.

Replacement Considerations

AVR64DA64-I/PT provides identical specifications except for the industrial temperature range (-40°C to +85°C). AVR64DA64S-I/PT offers the same security features but with the lower temperature rating. Verify package compatibility when substituting.

FAQ

What is the function of the 'S' suffix in the part number?

The 'S' suffix indicates that the device includes the Program and Debug Interface Disable (PDID) feature, which prevents external access to Flash memory via UPDI once activated.

How does the PDID feature affect device programming?

After activating PDID, the UPDI cannot erase or reprogram the device directly. Updates must be performed using software stored in the Boot Code section of the Flash memory.