AVR32DA48ST-I/PT

Overview

The AVR32DA48-I/PT is an 8-bit microcontroller from Microchip Technology, featuring the AVR core. It provides 64 kB of program memory and 8 kB of SRAM data RAM within a TQFP-48 package. The device supports a maximum clock frequency of 24 MHz and operates on a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit ADC with multiple channels, a 10-bit DAC, three comparators, and zero-crossing detectors. Communication interfaces comprise six USARTs, two SPI modules, and TWI. It includes 41 I/O pins and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-resolution analog capabilities with a 12-bit ADC and 10-bit DAC for precise signal processing.
• Features configurable logic blocks (PTC) and multiple comparators for hardware-based control applications.
• Supports robust communication through extensive serial interfaces including multiple USARTs, SPI, and TWI.
• Includes zero-crossing detectors and programmable gain amplifiers for AC sensing and power management tasks.

Applications

• Smart metering and utility monitoring systems
• Industrial motor control and drive applications
• Building automation and HVAC controllers
• Power line communication interface nodes

Procurement Notes

Verify the exact part number suffix against official Microchip documentation, as variations such as tape-and-reel packaging may exist. Confirm the operating temperature grade and voltage specifications match your system requirements. Ensure compatibility with existing design tools and programming interfaces before procurement. Cross-reference datasheet revisions to account for any errata or feature updates.

Selection Notes

Select this component when an 8-bit AVR architecture is required with advanced analog features like ZCD and PGA. It is suitable for designs needing multiple serial interfaces and significant I/O count in a compact TQFP-48 package. Consider it for cost-sensitive applications requiring 64 kB of flash and robust peripheral integration without moving to a 32-bit core.

Part Context

This device belongs to the AVR32DA family, which combines traditional AVR 8-bit performance with enhanced analog and digital peripherals. The DA series is designed for applications requiring high integration, such as smart energy and industrial controls, offering features like PDID and MVIO for flexible interfacing.

Replacement Considerations

Check for pin-compatible alternatives within the AVR32DA or AVR32DD families depending on specific peripheral needs. Verify if higher-performance variants like the AVR64DB series are suitable for future-proofing. Consult Microchip's official cross-reference tools for validated substitutes.