AVR128DB64-I/PT

Overview

The AVR128DB64-I/PT is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device operates within a supply voltage range of 1.8V to 5.5V and utilizes a 64-pin TQFP package. Key peripherals include a 12-bit ADC, 10-bit DAC, three analog comparators, three zero-cross detectors, and up to six USARTs.

Feature Summary

• Multi-Voltage I/O (MVIO) on Port C allows selectable input voltage thresholds for flexible interfacing.
• Integrated Analog Signal Conditioning subsystem provides op amps with internal resistor ladders for complex configurations without external components.
• Event System enables CPU-independent inter-peripheral signaling for predictable system timing.

Applications

• Industrial control systems requiring robust analog signal processing
• Power management applications utilizing zero-cross detection
• Embedded devices needing multi-voltage logic level translation

Procurement Notes

Verify the specific datasheet revision DS40002247A against the manufacturer's official records before finalizing design specifications. Confirm that the industrial temperature grade (-40°C to +85°C) aligns with the operational environment requirements of the target application.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. Ensure the 64-pin TQFP footprint fits the PCB layout constraints. Verify that the 55 available I/O pins meet the interface count requirements for the specific system design.

Part Context

This part belongs to the AVR128DB28/32/48/64 series, which shares full pin and feature compatibility across the family. It represents the highest memory configuration in the 64-pin variant, offering maximum storage capacity while maintaining identical physical dimensions to lower-memory counterparts.

Replacement Considerations

AVR128DB64T-I/PT