AVR32DU14-I/SL

Overview

The AVR32DU14-I/SL is an 8-bit microcontroller from the AVR DU family, featuring a 16 KB Flash memory, 4 KB SRAM, and 256 bytes of 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, two USARTs, one SPI, one TWI/I2C, a 10-bit ADC, and four CCL LUTs. It is housed in a 14-pin SOIC package and supports industrial temperatures from -40°C to +85°C.

Feature Summary

• Integrates a USB 2.0 full-speed device interface for communication without external transceivers.
• Includes Configurable Custom Logic (CCL) with four Look-up Tables for custom digital logic implementation.
• Features Program and Debug Interface Disable (PDID) to secure firmware against unauthorized access.
• Supports read-while-write operations on Flash memory for uninterrupted code execution during updates.

Applications

• USB-enabled peripheral devices
• Industrial control systems requiring secure firmware updates
• Low-power consumer electronics
• Smart sensors with analog signal processing

Procurement Notes

Verify the specific ordering suffix matches the required package style and temperature grade. Confirm that the 'I' designation corresponds to the industrial temperature range (-40°C to +85°C). Ensure the 'SL' suffix aligns with the SOIC-14 package requirements for your PCB layout. Check for preliminary status indicators if early adoption is planned.

Selection Notes

Select this component when a compact 14-pin solution with integrated USB functionality is required. It is suitable for applications needing moderate Flash capacity and multiple serial interfaces. Consider vertical migration within the AVR DU family if future pin count expansion is anticipated without code changes.

Part Context

This part belongs to the AVR DU family, which shares architectural compatibility across different pin counts and memory sizes. It utilizes the AVR CPU core with a hardware multiplier. The family emphasizes low power consumption and flexible I/O configurations, making it versatile for various embedded control tasks.

Replacement Considerations

AVR16DU14-I/SL

FAQ

What is the maximum operating frequency of the AVR32DU14?

The AVR32DU14 supports clock speeds up to 24 MHz using its internal high-frequency oscillator or external crystal sources.

Does the AVR32DU14 support simultaneous host and client operation on TWI?

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