AVR32DU32T-I/PT

Overview

The AVR32DU32T-I/PT 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 bytes of EEPROM. It operates at a maximum clock frequency of 24 MHz and supports 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, and one TWI/I2C module. It houses a 10-bit ADC with 21 channels, one analog comparator, and four Configurable Custom Logic (CCL) look-up tables. Packaged in a TQFP-32, it functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated USB 2.0 full-speed device interface for communication applications
• Configurable Custom Logic (CCL) with programmable look-up tables for custom digital logic implementation
• Read-While-Write (RWW) Flash memory allowing continuous code execution during self-programming
• Single-pin Unified Program and Debug Interface (UPDI) for programming and debugging

Applications

• USB-enabled peripheral devices
• Industrial control systems requiring real-time processing
• Smart sensors with analog signal conditioning
• Communication gateways using serial interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature grade. Confirm that the 'T' suffix indicates tape and reel packaging if required for automated assembly. Check for any preliminary status updates or errata sheets associated with the DS40002576 document before finalizing procurement specifications.

Selection Notes

Select this component when a balance of 8-bit simplicity and USB connectivity is required. The 32 KB Flash size suits moderate application complexity. Ensure the design accommodates the 1.8 V to 5.5 V operating range. Consider the TQFP-32 package dimensions for PCB layout constraints. Verify that the 21 ADC channels meet the input requirements without needing external multiplexers.

Part Context

This part belongs to the AVR DU family, which shares pin compatibility across different memory sizes and pin counts. It utilizes the AVR CPU core with a hardware multiplier. The family emphasizes low power consumption and flexible peripheral integration. The AVR32DU32 variant specifically offers 32 KB of program memory, positioning it between the smaller 16 KB and larger 64 KB options in the series.

Replacement Considerations

AVR32DU28T-I/PT offers similar features with fewer pins and ADC channels. AVR32DU48 variants provide increased memory but require different packages. Direct pin-compatible upgrades within the DU family are possible by changing the middle digits for memory size, provided the pin count remains compatible.