AVR128DB64-E/MR

Overview

The AVR128DB64-E/MR is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. The device operates within a 1.8 V to 5.5 V supply range and supports extended temperatures up to 125°C. Key peripherals include a 12-bit ADC with 22 channels, three analog comparators, three zero-cross detectors, and a 10-bit DAC. It utilizes a QFN-64 package.

Feature Summary

• Multi-Voltage I/O (MVIO) on Port C allows selectable input voltage thresholds for flexible interfacing.
• Configurable Custom Logic (CCL) provides up to six programmable Look-up Tables for complex digital logic without CPU intervention.
• Analog Signal Conditioning features include op amps with internal resistor ladders for versatile configurations.
• Event System enables CPU-independent and predictable inter-peripheral signaling.

Applications

• Industrial control systems requiring multi-voltage I/O compatibility
• Power control applications utilizing optimized PWM timers and zero-cross detection
• Sensor nodes leveraging high-resolution differential ADCs and low-power sleep modes

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range (-40°C to +125°C) as defined in the official datasheet. Confirm the '/MR' designation corresponds to the QFN-64 package type. Ensure compliance with RoHS requirements by checking the manufacturer's detailed documentation prior to final procurement decisions.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. It is suitable for designs needing high pin counts (up to 55/54 I/Os) and advanced analog signal conditioning. Consider its multi-voltage I/O capabilities if interfacing with mixed-voltage peripherals is necessary.

Part Context

This part belongs to the AVR128DB28/32/48/64 series, which shares full pin and feature compatibility for vertical migration. The AVR DB family integrates accurate analog subsystems and advanced digital peripherals, distinguishing it from previous AVR generations through its flexible low-power architecture and event-driven processing capabilities.

Replacement Considerations

AVR128DB64-I/MR serves as a verified substitute offering identical functionality but restricted to the industrial temperature range (-40°C to +85°C). Verify that the application environment remains within these thermal limits before substituting.

FAQ

What is the maximum operating frequency of the AVR128DB64-E/MR?

The device runs at clock speeds up to 24 MHz using the high-precision internal oscillator.

Does the AVR128DB64-E/MR support simultaneous master and slave TWI operations?

Yes, the TWI/I2C peripheral supports independent master and slave operation in dual mode on different pins.

How many general-purpose I/O pins are available on this 64-pin device?

The device provides up to 55/54 programmable I/O pins, depending on the specific pin configuration.