AVR64DB28-E/SO

Overview

The AVR64DB28-E/SO is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier and operating at clock speeds up to 24 MHz. It includes 64 KB of Flash memory, 8 KB of SRAM, and 512 bytes of EEPROM. The device provides 22 general-purpose I/O pins in a 28-pin SOIC package. Key peripherals include a 12-bit differential ADC with 13 channels, three analog comparators, one 10-bit DAC, and three zero-cross detectors. It supports multiple communication interfaces such as USART, SPI, and TWI/I2C.

Feature Summary

• Features Multi-Voltage I/O (MVIO) on Port C for flexible voltage threshold selection.
• Includes an Analog Signal Conditioning peripheral with op amps and internal resistor ladders.
• Supports CPU-independent inter-peripheral signaling via the Event System.
• Provides automated cyclic redundancy check scanning for Flash program memory.

Applications

• Industrial control systems requiring precise analog signal conditioning
• Power control applications utilizing optimized PWM timers and zero-cross detection
• Sensor nodes leveraging low-power architecture and event-driven processing

Procurement Notes

Verify that the ordering suffix 'E' confirms the extended temperature range specification (-40°C to +125°C). Confirm the '/SO' designation matches the required 28-pin SOIC package style. Ensure the component source aligns with Microchip Technology manufacturing standards.

Selection Notes

Select this variant when extended industrial temperature operation is required alongside high-performance analog features. The 28-pin configuration offers a compact footprint while retaining access to the full 64 KB Flash capacity and extensive peripheral set available in the AVR DB family.

Part Context

This component belongs to the AVR DB family, which emphasizes vertical migration compatibility without code modification. It shares architectural similarities with other devices in the series but is distinguished by its specific 64 KB memory size and 28-pin physical form factor.

Replacement Considerations

AVR64DB28-I/SO: Identical specifications except for the Industrial temperature range (-40°C to +85°C).