AVR32DA32S-E/PT

Overview

The AVR32DA32S-E/PT is an 8-bit microcontroller from the AVR DA(S) family, featuring a 32 KB Flash memory, 4 KB SRAM, and 512 B EEPROM. It operates at a maximum frequency of 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC, three analog comparators, a DAC, six USARTs, two SPI interfaces, and two TWI/I2C modules. It supports Peripheral Touch Controller (PTC), Configurable Custom Logic (CCL), and Program and Debug Interface Disable (PDID). The component is housed in a TQFP-32 package and functions within an extended temperature range of -40°C to +125°C.

Feature Summary

• Integrated Program and Debug Interface Disable (PDID) for secure firmware protection against unauthorized access.
• Supports vertical migration across the AVR DA(S) family without code modification due to pin and feature compatibility.
• Includes intelligent analog features such as a 12-bit differential ADC, zero-cross detectors, and a Peripheral Touch Controller.

Applications

• Secure embedded control systems requiring firmware authentication
• Industrial automation devices operating in extended temperature environments
• Applications utilizing capacitive touch interfaces via the Peripheral Touch Controller

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the extended temperature range (-40°C to +125°C) and 'S' indicates the inclusion of the PDID security feature. Confirm the package style 'PT' matches the required TQFP-32 footprint. Ensure the specific revision DS40002233C aligns with your design documentation requirements before finalizing procurement.

Selection Notes

Select this component when extended temperature operation is required alongside hardware-level security features. The 'S' variant provides PDID support, which is essential for preventing unauthorized reprogramming via UPDI. Compare memory sizes and peripheral counts against other AVR DA(S) family members to ensure optimal resource allocation for the specific application constraints.

Part Context

This part belongs to the AVR64DA28/32/48/64(S) family, which utilizes the latest AVR CPU technology with a hardware multiplier. The family emphasizes low-power architecture, event-driven processing, and flexible I/O configurations. Devices within this series are designed for seamless migration between different pin counts and memory capacities while maintaining software compatibility.

Replacement Considerations

AVR32DA32-I/PT serves as a functional substitute but lacks the extended temperature rating and PDID security feature found in the 'S-E' variant. Verify that the target application does not require the specific security protections or thermal performance provided by the original part number.

FAQ

What is the function of the 'S' suffix in the model name?

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

How does the AVR32DA32S-E/PT support vertical migration?

It is fully pin and feature compatible with other devices in the AVR DA(S) family, allowing code to be migrated vertically to devices with higher Flash and SRAM capacities without modification.

What is the purpose of the Event System in this microcontroller?

The Event System enables CPU-independent and predictable inter-peripheral signaling, allowing peripherals to communicate directly without consuming CPU cycles.