AVR128DA64S-I/PT

Overview

The AVR128DA64S-I/PT is an 8-bit microcontroller from the AVR DA(S) family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. The device offers up to 55 I/O pins in a TQFP-64 package. Key peripherals include a 12-bit ADC with 22 channels, three analog comparators, three zero-cross detectors, a 10-bit DAC, and a Peripheral Touch Controller (PTC). It supports industrial temperature range (-40°C to +85°C) and features Program and Debug Interface Disable (PDID) for security.

Feature Summary

• Integrated Program and Debug Interface Disable (PDID) mechanism prevents unauthorized access to reprogrammable Flash memory over UPDI after activation.
• Supports vertical migration within the AVR DA(S) family without code modification due to full pin and feature compatibility.
• Includes intelligent analog features such as a 12-bit differential ADC, analog comparators with window compare functions, and zero-cross detectors.

Applications

• Secure firmware upgrades requiring authentication and protection against remote attacks
• Applications utilizing capacitive touch interfaces via the Peripheral Touch Controller
• Power control systems optimized by the 12-bit Timer/Counter type D

Procurement Notes

Verify that the ordering suffix 'S' confirms the inclusion of the PDID feature, as standard devices lack this capability. Ensure the 'I' suffix matches the required industrial temperature range of -40°C to +85°C. Confirm the 'PT' designation corresponds to the TQFP package style. Cross-reference the specific datasheet revision DS40002183E for accurate electrical characteristics and pinout details before finalizing procurement.

Selection Notes

Select this component when secure boot capabilities are mandatory, specifically requiring the PDID feature to lock the Boot Code section. Choose the 64-pin variant if the design requires up to 55 general-purpose I/O pins or the maximum number of ADC channels available in the DA series. Consider the TQFP-64 package if through-hole or standard surface-mount assembly processes are preferred over VQFN options.

Part Context

This device belongs to the AVR DA(S) family, which utilizes the latest Microchip technologies for low-power and flexible architectures. The 'S' suffix distinguishes it from standard DA devices by including the PDID security feature. It shares the same core architecture and peripheral set as other members of the AVR128DA28/32/48/64 series, allowing for scalable design transitions.

Replacement Considerations

AVR128DA64-E/PT provides extended temperature range but lacks PDID. AVR128DB64-I/PT belongs to the DB family with different peripheral sets. No direct pin-compatible substitutes with identical PDID functionality are listed in public documentation.