AVR64DU28T-I/SS

Overview

The AVR64DU28T-I/SS is an 8-bit microcontroller from the AVR DU family, featuring a 64 KB Flash memory, 8 KB SRAM, and 256 B EEPROM. 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 USB 2.0 full-speed interface, one TCA, two TCBs, an RTC, two USARTs, SPI, TWI, a 10-bit ADC, and an Analog Comparator. It utilizes a single-pin UPDI for programming and debugging.

Feature Summary

• Integrates a hardware multiplier and supports read-while-write operations in Flash memory.
• Includes a USB 2.0 full-speed device interface with optional internal voltage regulator.
• Features Program and Debug Interface Disable (PDID) for enhanced firmware security.
• Supports low-power operation through multiple sleep modes and automated CRC scanning.

Applications

• USB-enabled embedded control systems
• Industrial monitoring devices requiring secure firmware updates
• Low-voltage portable electronics

Procurement Notes

Verify the specific package variant matches the required form factor, as the SS suffix indicates SSOP packaging. Confirm that the industrial temperature rating aligns with operational requirements. Ensure design compliance with the preliminary status specifications before finalizing production integration.

Selection Notes

Select this model for applications requiring integrated USB connectivity within a compact 28-pin footprint. Consider the 64 KB Flash capacity for complex logic or data storage needs. Evaluate the power consumption characteristics against battery-operated constraints if applicable.

Part Context

This component belongs to the AVR DU family, which emphasizes vertical migration compatibility across pin counts. It shares architectural similarities with other AVR series but introduces advanced digital peripherals like the Event System and Configurable Custom Logic for efficient peripheral signaling.

Replacement Considerations

AVR32DU28T-I/SS

FAQ

What is the maximum operating frequency?

The device runs at clock speeds up to 24 MHz.

Does the device support read-while-write operations?

Yes, it features genuine read-while-write capability in its Flash memory.