AVR64DD28-E/SS

Overview

The AVR64DD28-E/SS is an 8-bit microcontroller from the AVR DD family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 64 KB Flash, 8 KB SRAM, and 256 B EEPROM. The device operates within a 1.8 V to 5.5 V supply range and supports -40°C to +125°C temperatures. Key peripherals include a 12-bit ADC, 10-bit DAC, three USARTs, SPI, TWI, TCA, TCB, TCD timers, RTC, Event System, CCL, ZCD, AC, and UPDI.

Feature Summary

• Multi-Voltage I/O (MVIO) on PORTC enables bidirectional communication across different voltage domains without external level shifters.
• Configurable Custom Logic (CCL) provides four programmable Look-up Tables for custom digital logic implementation independent of the CPU.
• Event System allows predictable inter-peripheral signaling and CPU-independent operation to reduce system latency.
• Integrated analog subsystem includes a 12-bit differential ADC with PGA, 10-bit DAC, Analog Comparator, and Zero-Cross Detector.

Applications

• Industrial control systems requiring robust noise immunity and multi-voltage domain interfacing
• Smart home appliances utilizing low-power architectures and precise analog sensing
• IoT devices needing efficient real-time processing and versatile connectivity options

Procurement Notes

Verify the 'E' suffix confirms the extended temperature range (-40°C to +125°C). Confirm the 'SS' suffix indicates the SSOP-28 package style. Ensure the specific part number matches the required memory configuration and peripheral set defined in the official datasheet before finalizing procurement.

Selection Notes

Select this component when vertical migration within the AVR DD family is required without code modification. Choose this MCU for applications demanding high-speed 24 MHz processing combined with advanced analog features like MVIO and event-driven architecture. Consider the 28-pin SSOP package constraints regarding board space and thermal dissipation requirements.

Part Context

This device belongs to the AVR DD family, which emphasizes intelligent analog capabilities and flexible low-power architecture. It shares pin and feature compatibility with other members of the series, allowing for easy horizontal or vertical migration. The family utilizes the latest Microchip technologies to support complex designs with multiple power domains.

Replacement Considerations

AVR32DD28-E/SS: Reduced memory size (32 KB Flash, 4 KB SRAM). AVR16DD28-E/SS: Further reduced memory (16 KB Flash, 2 KB SRAM). AVR64DD32-E/SS: Increased pin count (32 pins) with additional I/O and ADC channels while maintaining identical core functionality and software compatibility.