AVR32DA48ST-E/PT

Overview

The AVR32DA48T-E/PT is an 8-bit microcontroller from the Microchip AVR DA series, featuring a 48-pin TQFP package. It integrates 128 kB of in-system programmable Flash memory and 16 kB of SRAM. The device operates at a maximum clock frequency of 24 MHz with a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit ADC with 18 channels, three analog comparators, a 10-bit DAC, and multiple communication interfaces such as UART, SPI, and TWI.

Feature Summary

• Integrates high-density non-volatile memory with 128 kB Flash and 16 kB SRAM for complex application storage.
• Features advanced analog capabilities including a 12-bit ADC with programmable gain amplifier and multiple comparators.
• Supports versatile digital connectivity through multiple USART, SPI, and TWI interface modules.
• Includes dedicated zero-crossing detection circuits and pulse train control for motor control applications.

Applications

• Motor control systems utilizing zero-crossing detection
• Industrial automation controllers requiring robust I/O
• Smart energy metering devices
• Battery-powered equipment with low voltage operation

Procurement Notes

Verify the exact part number suffix against official Microchip documentation, as variations exist between tape-and-reel and tube packaging. Confirm the temperature grade (Extended or Industrial) matches your environmental requirements. Ensure the specific pinout and peripheral configuration align with your schematic design before finalizing procurement orders.

Selection Notes

Select this component when high code capacity and extensive RAM are required within a compact 48-pin footprint. It is suitable for designs needing precise analog signal processing alongside multiple serial communication links. Consider the 24 MHz performance limit and 1.8 V to 5.5 V operating range during system power budgeting.

Part Context

This device belongs to the AVR DA family, which combines standard AVR architecture with enhanced peripheral sets. It shares architectural similarities with other AVR DB and EA series members but offers higher memory density. The DA series targets cost-sensitive applications requiring extended temperature ranges and integrated analog features.

Replacement Considerations

Check Microchip's official cross-reference tools for direct pin-compatible alternatives within the AVR DA or DB families. Verify that any substitute maintains the same package type and peripheral count to ensure hardware compatibility without redesign.

FAQ

What is the maximum operating frequency of the AVR32DA48T-E/PT?

The device supports a maximum clock frequency of 24 MHz.

Does this MCU support simultaneous read and write operations?

Yes, the AVR DA series typically includes Read-While-Write (RWW) capabilities for its Flash memory.

How many analog-to-digital converter channels are available?

The device provides 18 channels for the 12-bit ADC module.