AVR16DU32-I/RXB

Overview

The AVR16DU32-I/RXB is an 8-bit microcontroller from the AVR DU family, featuring a 32 KB Flash memory with read-while-write capability, 4 KB SRAM, and 256 B EEPROM. It operates at a maximum clock frequency of 24 MHz within a supply voltage range of 1.8 V to 5.5 V. The device includes a 10-bit ADC with 21 channels, two USARTs, one SPI, one TWI/I2C interface, and a USB 2.0 full-speed device interface. It utilizes a 32-pin VQFN package and supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates a hardware multiplier and single-cycle I/O access for efficient processing.
• Supports secure firmware upgrades via Program and Debug Interface Disable (PDID) mechanisms.
• Features an Event System for CPU-independent inter-peripheral signaling.
• Includes Configurable Custom Logic (CCL) with programmable Look-up Tables.

Applications

• USB-enabled embedded systems requiring full-speed data transfer.
• Industrial control applications utilizing RS-485 or LIN client modes.
• Sensor interfaces leveraging the high channel count ADC.
• Low-power designs utilizing multiple sleep modes and auto-tuning oscillators.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature range. Ensure compatibility with existing design constraints regarding pinout and memory allocation. Confirm that the component meets all required regulatory standards for the intended deployment environment before finalizing procurement decisions.

Selection Notes

Select this model when a balance of moderate Flash capacity and extensive peripheral connectivity is required. The 32-pin VQFN package suits space-constrained designs needing multiple I/O lines. Consider the USB interface availability if communication capabilities are essential, noting that USB functionality requires VDD above 3.0V.

Part Context

This component belongs to the AVR DU family, which offers vertical migration without code modification across different pin counts and memory sizes. It shares architectural similarities with other devices in the series, allowing for flexible design scaling while maintaining feature compatibility within the same footprint constraints.

Replacement Considerations

AVR32DU32-I/RXB

FAQ

What is the maximum operating frequency of the AVR16DU32-I/RXB?

The device runs at clock speeds up to 24 MHz using the internal high-frequency oscillator.

Does the AVR16DU32-I/RXB support simultaneous host and client operation on its I2C interface?

Yes, the TWI/I2C interface supports dual address match, allowing simultaneous host and client operation on different pins.