AVR128DA64T-E/MR

Overview

The AVR128DA64T-E/MR is an 8-bit microcontroller from the AVR DA family, featuring a 128 KB Flash program memory, 16 KB SRAM, and 512 B EEPROM. It operates at a maximum clock frequency of 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit differential ADC with 22 channels, a 10-bit DAC, three analog comparators, and three zero-cross detectors. It utilizes a QFN-64 package (MR) and is supplied in tape and reel format (T). The extended temperature rating covers -40°C to +125°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 an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic (CCL) with programmable Look-up Tables.
• Integrates intelligent analog peripherals including a 12-bit differential ADC, three analog comparators with window compare functions, and three zero-cross detectors.

Applications

• Capacitive touch interfaces such as buttons, sliders, wheels, and 2D surfaces
• Power control systems utilizing the 12-bit Timer/Counter type D
• Industrial monitoring requiring high-precision analog signal conditioning

Procurement Notes

Verify the 'E' suffix indicates the extended temperature range (-40°C to +125°C) and the 'T' suffix confirms tape and reel packaging. Confirm the 'MR' designation corresponds to the VQFN-64 package style. Ensure compatibility with the specific pinout requirements for the 64-pin variant within the AVR DA family.

Selection Notes

Select this component when vertical migration within the AVR DA family is required without code modification. Choose this part for designs needing 128 KB Flash and 16 KB SRAM in a 64-pin package. Consider the extended temperature rating for harsh environments and the PTC capabilities for touch-sensitive user interfaces.

Part Context

This device belongs to the AVR128DA series, which offers horizontal and vertical migration options across 28-, 32-, 48-, and 64-pin packages. It shares architectural similarities with other AVR DA members but provides the highest peripheral count and I/O availability in the 64-pin configuration.

Replacement Considerations

AVR128DA64-I/MR

FAQ

What does the 'T' suffix indicate in the part number?

The 'T' suffix denotes that the device is packaged in tape and reel format for automated assembly.

How many general-purpose I/O pins are available on this device?

The AVR128DA64T-E/MR provides up to 55 programmable general-purpose I/O pins.

Is the device compatible with standard I2C protocols?

Yes, the integrated TWI interface is Philips I2C compatible, supporting Standard, Fast, and Fast mode plus speeds.