AVR64DA64T-I/PT

Overview

The AVR64DA64T-I/PT is an 8-bit microcontroller from the AVR DA family, featuring a 64 KB Flash memory, 8 KB SRAM, and 512 B EEPROM. It operates at a maximum clock frequency of 24 MHz and provides up to 55 programmable I/O pins in a TQFP package. The device includes a 12-bit differential ADC with 22 channels, three analog comparators, one 10-bit DAC, and three zero-cross detectors. Communication interfaces include six USARTs, two SPIs, and two TWI/I2C modules. It supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Features a Peripheral Touch Controller (PTC) supporting up to 46 self-capacitance and 529 mutual capacitance channels for capacitive touch applications.
• Includes Configurable Custom Logic (CCL) with up to six programmable Look-up Tables (LUT) for hardware-based logic implementation.
• Supports automated Cyclic Redundancy Check (CRC) scanning for Flash memory integrity verification.

Applications

• Capacitive touch interface implementations using buttons, sliders, wheels, or 2D surfaces.
• Industrial control systems requiring robust communication via multiple USART and TWI interfaces.
• Power control applications utilizing the dedicated 12-bit Timer/Counter type D (TCD).

Procurement Notes

Verify that the ordering suffix 'T' corresponds to Tape & Reel packaging as specified in the datasheet designation table. Confirm the 'I' suffix indicates the Industrial temperature range (-40°C to +85°C). Ensure the 'PT' suffix matches the required TQFP package style. Cross-reference the full part number against official Microchip documentation to confirm availability and specific revision details.

Selection Notes

Select this component when vertical migration within the AVR DA(S) family is required without code modification. Choose this model if the application demands high pin counts (up to 55 I/O) and extensive peripheral resources such as six USARTs and 22 ADC channels. Consider this device for designs needing integrated capacitive touch sensing capabilities alongside standard digital peripherals.

Part Context

This device belongs to the AVR64DA28/32/48/64(S) series, which shares a common architecture with varying pin counts and peripheral quantities. It offers horizontal migration options to lower pin count variants like the AVR64DA48, reducing available features while maintaining software compatibility. The family utilizes the latest AVR CPU technology with a hardware multiplier running up to 24 MHz.

Replacement Considerations

AVR64DA64ST-E/PT