AVR64DB32-I/RXB

Overview

The AVR64DB32-I/RXB is an 8-bit microcontroller from the AVR DB family, featuring a 32-pin VQFN package. It includes 64 KB of self-programmable Flash memory, 8 KB of SRAM, and 512 bytes of EEPROM. The device operates at clock speeds up to 24 MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include a 12-bit differential ADC with 13 channels, a 10-bit DAC, three analog comparators, and three zero-cross detectors. Communication interfaces consist of USART, SPI, and TWI/I2C modules.

Feature Summary

• Supports vertical migration within the AVR DB family without code modification due to full pin and feature compatibility across variants.
• Integrates Multi-Voltage I/O (MVIO) on Port C for selectable input voltage thresholds.
• Features an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic (CCL).
• Includes automated cyclic redundancy check (CRC) scanning for Flash program memory integrity verification.

Applications

• Industrial control systems requiring robust peripheral integration.
• Sensor applications utilizing high-resolution analog signal conditioning.
• IoT terminal nodes operating within industrial temperature ranges.

Procurement Notes

Verify the specific ordering suffix 'RXB' corresponds to the VQFN32 package style and 'I' indicates the -40°C to +85°C industrial temperature range. Confirm that the required pin count and peripheral set align with the AVR64DB32 variant specifications before finalizing procurement orders.

Selection Notes

Select this component when a 32-pin footprint is required alongside 64 KB of program memory. Ensure the design utilizes the 1.8V to 5.5V operating range. Consider the availability of the VQFN32 package if surface-mount assembly is preferred over TQFP or other package styles offered in the same family.

Part Context

This device belongs to the AVR DB family, which emphasizes low-power architecture and advanced digital peripherals. It shares architectural similarities with AVR32DB and AVR128DB series devices, allowing for scalable development paths based on memory and pin requirements while maintaining software compatibility.

Replacement Considerations

AVR64DB32-PT: Identical core specifications but housed in a TQFP32 package instead of VQFN32.