AVR128DA64ST-E/PT

Overview

The AVR128DA64ST-E/PT is an 8-bit microcontroller from the AVR® DA family, featuring a 24 MHz CPU with hardware multiplier. It includes 128 KB of self-programmable Flash memory, 16 KB of SRAM, and 512 B of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports extended industrial temperatures (-40°C to +125°C). Key peripherals include a 12-bit differential ADC, three analog comparators, a 10-bit DAC, up to six USARTs, two SPI interfaces, and two TWI/I²C controllers. It utilizes a single-pin Unified Program and Debug Interface (UPDI) for programming.

Feature Summary

• Supports vertical migration without code modification across the AVR® DA(S) family due to full pin and feature compatibility.
• Integrates intelligent analog features including a Peripheral Touch Controller (PTC) with Driven Shield+ technology for capacitive touch applications.
• Provides advanced digital peripherals such as Configurable Custom Logic (CCL) and an Event System for CPU-independent inter-peripheral signaling.
• Includes security features like Program and Debug Interface Disable (PDID) to protect against remote attacks and unauthorized firmware modifications.

Applications

• Applications requiring secure firmware upgrades and authentication using PDID mechanisms.
• Systems utilizing capacitive touch interfaces such as buttons, sliders, wheels, or 2D surfaces via the PTC.
• Power control circuits optimized by the 12-bit Timer/Counter type D (TCD).
• Communication stacks requiring multiple serial interfaces including USART, SPI, and TWI/I²C.

Procurement Notes

Verify that the ordering suffix 'ST' correctly indicates Tape & Reel packaging and 'E' denotes the Extended temperature range. Confirm the 'S' suffix requirement if the specific application necessitates the Program and Debug Interface Disable (PDID) feature. Ensure the TQFP package style matches the PCB footprint requirements for the 64-pin variant.

Selection Notes

Select this component when high I/O count (up to 55 pins) and extensive memory are required in an 8-bit architecture. Consider the AVR128DA64ST-E/PT for designs needing robust analog capabilities alongside standard digital peripherals. Evaluate the need for the PDID security feature; if not required, standard variants without the 'S' suffix may be sufficient.

Part Context

This part belongs to the AVR® DA(S) family, which combines low-power performance with real-time control functions. The family offers horizontal migration options to reduce pin counts and vertical migration for increased features without code changes. The AVR128DA64 represents the highest pin count and memory density option within this specific series.

Replacement Considerations

AVR128DA64-E/MR