AVR128DA32ST-I/PT

Overview

The AVR128DA32ST-I/PT is an 8-bit microcontroller from the AVR DA(S) family, featuring a 32-pin TQFP package with the 'S' suffix indicating integrated Program and Debug Interface Disable (PDID) security. It operates at up to 24 MHz and includes 128 KB of Flash memory, 16 KB of SRAM, and 512 B of EEPROM. The device supports a supply voltage range of 1.8 V to 5.5 V and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated Program and Debug Interface Disable (PDID) for secure firmware protection against unauthorized access
• Peripheral Touch Controller (PTC) supporting capacitive touch buttons, sliders, wheels, and 2D surfaces
• Advanced analog signal conditioning including a 12-bit ADC, three analog comparators, and zero-cross detectors
• Flexible event system enabling CPU-independent inter-peripheral signaling

Applications

• Secure embedded systems requiring protected firmware updates
• Industrial control applications utilizing capacitive user interfaces
• Power management devices with AC line monitoring capabilities
• General-purpose IoT nodes needing robust I/O and communication peripherals

Procurement Notes

Verify that the specific part number includes the 'S' designation to confirm the presence of the PDID feature. Ensure the ordering suffix matches the required package style and temperature grade. Confirm compatibility with existing design files as the device maintains pin and feature compatibility across the AVR DA(S) family.

Selection Notes

Select this component when hardware-level security via PDID is mandatory for the application. The 32-pin form factor offers a balance between peripheral count and board space. Consider the 128 KB Flash capacity for complex logic requirements and verify that the 1.8 V to 5.5 V operating range aligns with the system power architecture.

Part Context

This device belongs to the AVR128DA28/32/48/64(S) series, which provides vertical migration capabilities without code modification. The 'S' variant specifically enhances the standard AVR DA architecture with security features. It shares the same core CPU and peripheral set as other members in the DA family, differing primarily in pin count and memory size.

Replacement Considerations

AVR128DA32-I/PT serves as the non-security equivalent within the same package.