AVR128DA32T-E/RXB

Overview

The AVR128DA32T-E/RXB is an 8-bit microcontroller from the AVR DA family, featuring a 24 MHz CPU with hardware multiplier. It includes 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. The device operates between 1.8 V and 5.5 V across -40°C to +125°C. It provides 27 I/O pins in a 32-pin VQFN package (RXB). Peripherals include one 12-bit ADC, one 10-bit DAC, three analog comparators, three zero-cross detectors, and a Peripheral Touch Controller.

Feature Summary

• Supports vertical migration within the AVR DA family without code modification due to full pin and feature compatibility.
• Integrates a Peripheral Touch Controller with Driven Shield+ and Boost Mode technologies for capacitive touch applications.
• Features an Event System for CPU-independent inter-peripheral signaling and Configurable Custom Logic with programmable Look-up Tables.

Applications

• Capacitive touch interfaces using buttons, sliders, wheels, or 2D surfaces
• Power control systems utilizing the 12-bit Timer/Counter type D
• Zero-cross detection for AC power switching applications

Procurement Notes

Verify the ordering suffix 'T' indicates tape and reel packaging and 'RXB' specifies the 32-pin VQFN form factor. Confirm the 'E' suffix denotes the extended temperature range of -40°C to +125°C. Ensure the component matches the specific datasheet revision DS40002183B for accurate peripheral specifications.

Selection Notes

Select this model when 128 KB of program memory and 16 KB of RAM are required alongside extensive analog peripherals. The 32-pin VQFN package suits designs needing up to 27 general-purpose I/Os. Consider the extended temperature rating for harsh environments requiring operation up to +125°C.

Part Context

This component belongs to the AVR128DA series, which shares architectural similarities with the AVR32DA and AVR64DA families. These devices utilize the latest AVR CPU technology and offer flexible low-power architectures. The DA family emphasizes intelligent analog features and advanced digital peripherals for modern embedded control.

Replacement Considerations

AVR128DA28T-E/RXB: Reduces pin count and available features while maintaining memory size.

FAQ

What does the RXB suffix indicate for this part?

The RXB suffix designates the 32-pin VQFN 5x5 mm package style.

How many self-capacitance channels does the PTC support?

The Peripheral Touch Controller supports up to 22 self-capacitance channels.

Is the device compatible with the UPDI interface?

Yes, it features a single-pin Unified Program and Debug Interface (UPDI) for programming and debugging.