AVR128DA48-E/PT

Overview

The AVR128DA48-E/PT is an 8-bit microcontroller from the AVR DA family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. The device operates within a voltage range of 1.8 V to 5.5 V and supports temperatures from -40°C to +125°C. Key peripherals include five USARTs, two SPIs, two TWIs/I2Cs, one 12-bit ADC with 18 channels, one 10-bit DAC, three analog comparators, and a Peripheral Touch Controller. It utilizes a TQFP-48 package.

Feature Summary

• Supports vertical migration across the AVR DA family without code modification due to full pin and feature compatibility.
• Integrates intelligent analog features including a 12-bit differential ADC, 10-bit DAC, and configurable custom logic.
• Features a flexible low-power architecture with an Event System for independent inter-peripheral signaling.
• Includes a Peripheral Touch Controller with Driven Shield+ technology for capacitive touch applications.

Applications

• IoT application prototyping
• Wired and wireless communication stacks
• High-precision design systems

Procurement Notes

Verify the 'E' suffix indicates extended temperature operation (-40°C to +125°C) and the 'PT' suffix denotes the TQFP package style. Confirm the specific revision level against the manufacturer's datasheet DS40002183B. Ensure the ordering suffix matches the required thermal and packaging specifications for the target environment.

Selection Notes

Select this component when high memory density and advanced analog peripherals are required in a compact 48-pin form factor. The device is suitable for designs needing multiple serial interfaces and capacitive touch capabilities. Consider the extended temperature rating if operating in harsh environments. Verify that the 1.8V to 5.5V supply range aligns with the system power architecture.

Part Context

This part belongs to the AVR128DA28/32/48/64 series, which shares a common core and peripheral set scaled by pin count and memory size. The AVR DA family represents Microchip's latest generation of 8-bit MCUs, combining the established AVR architecture with modern smart analog features and event-driven connectivity.

Replacement Considerations

AVR128DA48-I/PT (Industrial temperature variant)

FAQ

What does the 'E' suffix indicate in the part number?

The 'E' suffix specifies the Extended temperature range, supporting operation from -40°C to +125°C.

How many general-purpose I/O pins are available?

The AVR128DA48 provides up to 41 programmable general-purpose I/O pins.

Does the device support simultaneous master and slave I2C operations?

Yes, the TWI/I2C interface can operate simultaneously as master and slave on different pins.