AVR32DD14-E/SL

Overview

The AVR32DD14-E/SL is an 8-bit microcontroller from the AVR DD family, featuring a 32 KB Flash memory and 4 KB SRAM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 12-bit differential ADC, 10-bit DAC, ZCD, and multiple communication interfaces including USART, SPI, and TWI. It utilizes Multi-Voltage I/O (MVIO) for flexible interfacing. The -E suffix indicates an extended temperature range of -40°C to +125°C, while the -SL suffix denotes a 14-pin SSOP package.

Feature Summary

• Multi-Voltage I/O (MVIO) capability on PORTC allows direct connection to different voltage domains without external level shifters.
• Configurable Custom Logic (CCL) provides four programmable Look-up Tables for custom digital logic implementation independent of CPU load.
• Event System enables predictable inter-peripheral signaling and reduces system latency by allowing peripherals to communicate directly.
• Integrated Zero-Cross Detector (ZCD) supports AC power control applications by detecting mains zero-crossing points.

Applications

• Industrial control systems requiring multi-voltage interface compatibility
• Smart home appliances with AC power control features
• IoT nodes operating in extended temperature environments
• Battery-powered devices utilizing low-power sleep modes

Procurement Notes

Verify the specific ordering suffixes against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the design accounts for the 14-pin SSOP footprint dimensions and thermal characteristics. Confirm that the required peripheral count fits within the constraints of the 14-pin variant compared to higher pin-count models in the same family.

Selection Notes

Select this model when 32 KB of program memory and 4 KB of RAM are sufficient for the application logic. Choose the -E variant if the operational environment exceeds standard industrial temperatures. Verify that the 14-pin package provides enough General Purpose I/O pins for all required connections, noting that higher pin counts in the DD family offer additional peripherals.

Part Context

This component belongs to the AVR DD family of 8-bit microcontrollers, which share a common architecture and software compatibility. Devices within this family allow for vertical migration between different memory sizes and horizontal migration between different pin counts without code modification. The AVR32DD14 represents the entry-level pin count option with 32 KB Flash capacity.

Replacement Considerations

AVR32DD14-I/SS: Same specifications but with Industrial temperature range (-40°C to +85°C).

FAQ

What is the difference between the -E and -I temperature grades?

The -E suffix indicates an Extended temperature range of -40°C to +125°C, suitable for harsher environments, while the -I suffix indicates an Industrial temperature range of -40°C to +85°C.

Does the 14-pin version support all peripherals found in the 28-pin version?

No, the 14-pin version has fewer General Purpose I/O pins and may have reduced channel counts for certain peripherals like the ADC compared to the 28-pin or 32-pin variants.

Can the MVIO feature be disabled?

Yes, the Multi-Voltage I/O feature can be disabled via the SYSCFG1.MVSYSCFG fuse setting, allowing ADC inputs to be available on PORTC pins as standard digital I/O.