AVR64DA32S-E/PT

Overview

The AVR64DA32S-E/PT is an 8-bit microcontroller from the Microchip AVR DA series, featuring a 24 MHz CPU core. It integrates 64 kB of Flash program memory and 8 kB of SRAM data memory. The device includes a 12-bit ADC with 14 channels, a 10-bit DAC, three comparators, and three Zero-Crossing Detectors (ZCD). Communication interfaces include six UARTs, two SPI modules, and TWI. It operates within a voltage range of 1.8 V to 5.5 V and supports temperatures up to +125 °C in a TQFP-32 package.

Feature Summary

• Integrates multiple communication peripherals including six UARTs, two SPI modules, and TWI for versatile connectivity.
• Features high-resolution analog capabilities with a 12-bit ADC, 10-bit DAC, and three dedicated comparators.
• Includes specialized signal processing blocks such as three Zero-Crossing Detectors (ZCD) and a Programmable Temperature Comparator (PTC).

Applications

• Industrial control systems requiring robust analog sensing and multiple serial interfaces.
• Smart metering applications utilizing zero-crossing detection for AC line monitoring.
• Temperature monitoring solutions leveraging the integrated programmable temperature comparator.

Procurement Notes

Verify the specific suffix 'S' against official Microchip documentation to confirm if it denotes a specific tape-and-reel configuration or variant distinct from standard tray packaging. Ensure the operating temperature grade matches the '-E' designation requirements for your application environment. Cross-reference the datasheet revision history to confirm pinout and feature availability for this exact part number.

Selection Notes

Select this component when high I/O count and extensive serial communication are required in a compact 32-pin form factor. The inclusion of six UARTs makes it suitable for complex multi-device networks. Consider the -E temperature rating for industrial environments exceeding standard commercial limits. Evaluate the 12-bit ADC resolution against sensor accuracy needs before finalizing the design.

Part Context

This MCU belongs to the AVR DA family, designed for cost-sensitive applications requiring enhanced peripheral density. It shares architectural similarities with other AVR DA devices but offers specific pin counts and interface combinations. The family emphasizes low power consumption while maintaining high performance through optimized instruction sets and hardware accelerators.

Replacement Considerations

Check for direct pin-compatible upgrades within the AVR DA series, such as the AVR64DA28 or AVR64DA48, depending on I/O requirements. Verify that alternative packages like SSOP or QFN meet mechanical constraints. Ensure software compatibility remains intact when migrating between different pin counts within the same family.