AVR128DB48-E/PT

Overview

The AVR128DB48-E/PT is an 8-bit microcontroller from the AVR DB family, utilizing the AVR CPU with a hardware multiplier. It features 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device operates at clock speeds up to 24 MHz within a supply voltage range of 1.8V to 5.5V. It includes a 12-bit ADC with 18 channels, three analog comparators, a 10-bit DAC, and three zero-cross detectors. The component is housed in a 48-pin TQFP package and supports industrial temperature ranges.

Feature Summary

• Multi-voltage I/O capability on Port C allows for flexible interface configurations across different voltage domains.
• Integrated analog signal conditioning subsystem includes op amps with internal resistor ladders for complex circuit implementations without external components.
• Advanced digital peripherals feature Configurable Custom Logic (CCL) Look-up Tables for implementing custom logic functions independently of the CPU.

Applications

• Industrial control systems requiring robust analog signal processing
• Home appliance products needing multi-voltage operation
• Automotive applications demanding high reliability and wide temperature tolerance
• Internet of Things (IoT) devices utilizing low-power architectures

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the extended temperature range (-40°C to +125°C) as specified in the official datasheet. Confirm the package type is TQFP-48 and ensure compatibility with the AVR DB family pinout for vertical migration projects. Cross-reference the specific revision level DS40002247A to guarantee accurate peripheral documentation.

Selection Notes

Select this component when project requirements demand high-performance analog capabilities alongside standard 8-bit MCU functionality. The inclusion of multiple timers, event systems, and configurable logic reduces the need for external discrete components. Ensure the application benefits from the multi-voltage I/O feature if interfacing with mixed-signal environments.

Part Context

This part belongs to the AVR128DB series, which offers horizontal and vertical migration paths within the AVR DB family. Devices share compatible pinouts and features, allowing code reuse across variants with different memory sizes or pin counts. The AVR128DB48 provides a balance of memory capacity and peripheral density suitable for mid-range embedded applications.

Replacement Considerations

AVR128DB48-I/PT serves as a direct substitute with identical specifications but differs in the operating temperature range, supporting industrial limits instead of extended limits.

FAQ

What is the maximum clock frequency supported by the AVR128DB48-E/PT?

The device supports clock speeds up to 24 MHz using the high-precision internal oscillator.

Does the AVR128DB48-E/PT support simultaneous master and slave TWI operations?

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

How many general-purpose I/O pins are available on the 48-pin variant?

The 48-pin package provides up to 41 programmable general-purpose I/O pins.