AVR16DD28-E/SS

Overview

The AVR16DD28T-E/SS is an 8-bit microcontroller from the AVR DD family, featuring a 16 KB Flash program memory and 2 KB SRAM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with 19 channels, a 10-bit DAC, two USARTs, SPI, and TWI interfaces. It utilizes Multi-Voltage I/O (MVIO) on Port C and supports extended temperature operation from -40°C to +125°C in an SSOP-28 package.

Feature Summary

• Multi-Voltage I/O (MVIO) capability enables direct bidirectional communication between different power domains without external level shifters.
• Integrated intelligent analog peripherals include a 12-bit differential ADC, 10-bit DAC, Analog Comparator, and Zero-Cross Detector for signal conditioning.
• Configurable Custom Logic (CCL) provides four Look-up Tables to implement custom digital logic functions independently of the CPU.
• Event System allows peripheral-to-peripheral signaling to reduce CPU intervention and system latency.

Applications

• Industrial control systems requiring real-time processing
• Smart home appliances with multi-voltage domain requirements
• IoT sensor nodes utilizing low-power sleep modes
• Automotive applications supporting safety-critical functions

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging and 'E' denotes the extended industrial temperature range (-40°C to +125°C). Confirm that the 'SS' suffix corresponds to the SSOP package style. Ensure compatibility with the Unified Program and Debug Interface (UPDI) for programming and debugging needs.

Selection Notes

Select this component when 16 KB of Flash and 2 KB of SRAM are sufficient for the application logic. The presence of MVIO makes it suitable for designs interfacing with 3.3V or 5V peripherals directly. Consider the 12-bit ADC resolution and 19 available channels if high-precision analog sensing is required.

Part Context

This part belongs to the AVR DD family, which emphasizes vertical migration compatibility within the series. Devices in this family share pinouts and features across varying memory sizes, allowing designers to scale storage capacity without modifying hardware layouts or software code.

Replacement Considerations

AVR16DD28T-I/SS offers the same specifications but with an industrial temperature range (-40°C to +85°C). AVR32DD28T-E/SS and AVR64DD28T-E/SS provide increased memory while maintaining pin and feature compatibility.