AVR32DD20T-I/SO

Overview

The AVR32DD20T-I/SO is an 8-bit microcontroller from the AVR DD Family, manufactured by Microchip Technology. It features a 32 KB Flash memory, 4 KB SRAM, and 256 bytes of EEPROM. The device operates at a maximum clock frequency of 24 MHz with a supply voltage range of 1.8 V to 5.5 V. It includes a 12-bit ADC with 13 channels, a 10-bit DAC, two USARTs, one SPI, and one TWI interface. The component is housed in a 20-pin SOIC package and supports an industrial temperature range of -40°C to +85°C.

Feature Summary

• AVR CPU running up to 24 MHz with hardware multiplier
• Multi-Voltage I/O (MVIO) support on PORTC
• Integrated Event System for inter-peripheral signaling
• Configurable Custom Logic (CCL) with Look-up Tables

Applications

• Industrial control systems
• Smart energy metering
• Sensor interfaces
• General-purpose embedded applications

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and temperature rating. Ensure compatibility with existing design constraints regarding pin count and peripheral availability. Cross-reference part numbers with manufacturer documentation to avoid substitution errors.

Selection Notes

Select this model for designs requiring vertical migration within the AVR DD family without code modification. Consider the 20-pin form factor for space-constrained applications needing 13 ADC channels and dual communication interfaces. Evaluate power requirements against the 1.8V to 5.5V operating range.

Part Context

Part of the AVR DD Family, offering horizontal migration options to reduce pin counts while maintaining architectural compatibility. Designed for low-power applications with advanced analog features and flexible digital peripherals.

Replacement Considerations

AVR32DD20-I/SS provides the same electrical specifications in an SSOP package. AVR32DD28 variants offer increased I/O pins but require PCB layout adjustments.