AVR128DB28-E/SP

Overview

The AVR128DB28-E/SP 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 supports up to 22 I/O pins in its 28-pin SPDIP package.

Feature Summary

• Features an advanced analog subsystem including a 12-bit differential ADC, op amps, and configurable custom logic for signal processing without external components.
• Supports multi-voltage I/O (MVIO) on Port C with selectable input thresholds for flexible interfacing.
• Integrates an event system for CPU-independent peripheral signaling and sleepwalking capabilities to reduce power consumption.

Applications

• Industrial control systems requiring precise analog signal conditioning
• Smart sensors utilizing internal op amps and comparators
• Battery-powered devices leveraging low-power architecture and sleep modes

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the industrial temperature range (-40°C to +85°C) as specified in the official datasheet. Confirm the 'SP' suffix indicates the SPDIP package type. Ensure compatibility with UPDI programming interfaces for development.

Selection Notes

Select this model when 128 KB of program memory and 16 KB of RAM are required alongside a 28-pin through-hole package. It is suitable for applications needing high-precision analog peripherals and multi-voltage I/O flexibility within the AVR DB family ecosystem.

Part Context

This component belongs to the AVR DB family, which offers vertical migration compatibility across pin counts. It shares architectural features with other AVR DB devices but provides specific memory and I/O configurations tailored for compact embedded designs.

Replacement Considerations

AVR128DB28-I/SP serves as a direct replacement variant differing only in temperature rating. Other AVR128DB series members offer horizontal migration options with different pin counts and feature sets.

FAQ

What is the maximum operating frequency of the AVR128DB28-E/SP?

The device runs at clock speeds up to 24 MHz using the AVR CPU with a two-cycle hardware multiplier.

Does the AVR128DB28 support multi-voltage I/O?

Yes, it features Multi-Voltage I/O (MVIO) on Port C with selectable input voltage thresholds.

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

The 28-pin variant provides up to 22 programmable I/O pins.