AVR64DU32-I/RXB

Overview

The AVR64DU32-I/RXB is an 8-bit microcontroller from the AVR DU family, featuring a 32-pin VQFN package. It includes 64 KB of in-system self-programmable Flash memory with read-while-write capability, 4 KB of SRAM, and 256 bytes of EEPROM. The device operates at clock speeds up to 24 MHz within a supply voltage range of 1.8V to 5.5V. Key peripherals include a USB 2.0 full-speed interface, two USARTs, one SPI, one TWI/I2C, a 10-bit ADC with 21 channels, and an analog comparator.

Feature Summary

• Integrates a USB 2.0 full-speed device-compliant interface for communication applications.
• Features a high-performance AVR CPU with hardware multiplier and single-cycle I/O access.
• Includes advanced security mechanisms such as Program and Debug Interface Disable (PDID) for firmware protection.
• Supports flexible power management with multiple sleep modes and low-power operation.

Applications

• USB-enabled embedded systems
• Industrial control logic
• Sensor interfaces
• IoT terminal nodes

Procurement Notes

Verify that the ordering suffix RXB corresponds to the VQFN32 package and I indicates the industrial temperature range (-40°C to +85°C). Confirm the datasheet revision matches the specific production lot requirements. Ensure compatibility with existing design constraints regarding pinout and peripheral availability before finalizing procurement.

Selection Notes

Select this component when a 32-pin form factor with integrated USB functionality is required. It is suitable for designs needing moderate Flash capacity and multiple communication interfaces. Consider vertical migration within the AVR DU family if future scalability is needed without code modification.

Part Context

This part belongs to the AVR DU family, which shares pin and feature compatibility across different memory sizes. It utilizes the latest Microchip technologies, including an Event System and intelligent analog features. The device is designed for general-purpose applications requiring robust performance and security features.

Replacement Considerations

AVR64DU32T-I/RXB offers the same specifications in tape and reel packaging. AVR64DU32-I/PT provides identical functionality in a TQFP package. Vertical migration within the AVR DU family allows for changes in Flash or RAM size without altering the codebase.

FAQ

What is the maximum operating frequency of the AVR64DU32?

The AVR64DU32 supports clock speeds up to 24 MHz.

Does the device support simultaneous host and client operation on the TWI interface?

Yes, the TWI/I2C interface can operate simultaneously as both host and client on different pins.

How does the PDID feature enhance security?

PDID prevents access to the device's reprogrammable Flash memory over the UPDI, protecting against unauthorized modifications after activation.