AVR16DD28T-E/SS

Overview

The AVR16DD28T-E/SS is an 8-bit microcontroller from the AVR DD family, featuring a 16 KB Flash program memory, 2 KB SRAM, and 256 bytes of EEPROM. It operates at a maximum clock frequency of 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 PORTC and offers Zero-Cross Detection (ZCD). Packaged in SSOP-28, it supports extended temperature operation from -40°C to +125°C.

Feature Summary

• Multi-Voltage I/O (MVIO) capability allows flexible interfacing with different voltage domains.
• Integrated analog peripherals include a 12-bit differential ADC and a 10-bit DAC for signal processing.
• Hardware acceleration provided by a two-cycle multiplier and single-cycle I/O access.
• Advanced digital features such as Configurable Custom Logic (CCL) and Event System enable complex logic without CPU intervention.

Applications

• Industrial control systems requiring multi-voltage I/O compatibility
• Smart home appliances and IoT devices needing low-power operation
• Motor control applications utilizing PWM timers and zero-cross detection
• Sensor interface circuits leveraging high-resolution ADC and DAC capabilities

Procurement Notes

Verify the ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'T' indicates tape and reel packaging. Ensure the specific pinout matches the SSOP-28 package requirements for your PCB layout. Cross-reference the datasheet DS40002315 for complete electrical characteristics and timing diagrams before finalizing component selection.

Selection Notes

Select this model when 16 KB of Flash is sufficient for application code and 2 KB RAM meets data storage needs. Choose the extended temperature grade ('E') if operating environments exceed standard industrial limits. Verify that the 28-pin count provides adequate General Purpose I/O pins for all required connections, considering the MVIO configuration options available on PORTC.

Part Context

This component belongs to the AVR DD family, which emphasizes vertical migration compatibility within the series. It shares architectural similarities with higher-memory variants like the AVR32DD28 and AVR64DD28, allowing for potential code reuse across different memory sizes while maintaining pin compatibility.

Replacement Considerations

AVR16DD28-I/SS: Identical specifications but limited to industrial temperature range (-40°C to +85°C).

FAQ

What is the function of the MVIO feature?

Multi-Voltage I/O (MVIO) allows PORTC pins to operate at a voltage level independent of the core supply voltage, facilitating direct connection to external components running at different voltages.

How many analog input channels are available?

The device provides 19 channels for the 12-bit differential Analog-to-Digital Converter (ADC).

Does the device support simultaneous host and client operations on I2C?

Yes, the TWI/I2C interface supports dual mode operation, allowing it to act as both a host and a client simultaneously on different pins.