AVR128DB28-E/SS

Overview

The AVR128DB28-E/SS is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device operates within a voltage range of 1.8 V to 5.5 V and supports up to 22 I/O pins in its 28-pin SSOP package.

Feature Summary

• Features multi-voltage I/O (MVIO) on Port C for flexible logic level interfacing.
• Includes advanced analog subsystems such as a 12-bit ADC, DAC, op amps, and zero-cross detectors.
• Supports CPU-independent peripheral signaling via the Event System.
• Provides automated cyclic redundancy check (CRC) scanning for Flash program memory.

Applications

• Industrial control systems requiring robust analog signal conditioning
• Power management applications utilizing zero-cross detection
• General-purpose embedded controllers needing high-speed I/O access

Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's latest documentation to ensure compatibility with design requirements.

Selection Notes

Select this model when 128 KB of Flash and 16 KB of SRAM are necessary. Ensure the application requires the extended temperature range and the specific 28-pin SSOP footprint provided by this variant.

Part Context

This component belongs to the AVR DB family, which offers vertical migration without code modification across different pin counts and memory sizes. It shares architectural features with other devices in the series while providing distinct storage capacities.

Replacement Considerations

AVR128DB32-E/SS

FAQ

What is the maximum operating frequency?

The AVR CPU runs at clock speeds up to 24 MHz.

Does the device support simultaneous master and slave operation?

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