AVR128DB48-I/PT

Overview

The AVR128DB48-I/PT is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device provides up to 55 programmable I/O pins in a 48-pin TQFP package. Key peripherals include a 12-bit differential ADC with 18 channels, three analog comparators, one 10-bit DAC, and multiple timer/counters. It supports industrial temperature ranges (-40°C to 85°C) and operates within a supply voltage range of 1.8V to 5.5V.

Feature Summary

• Features a flexible low-power architecture with an Event System for CPU-independent inter-peripheral signaling.
• Includes accurate analog subsystems such as a 12-bit differential ADC and Analog Signal Conditioning (OPAMP) peripheral.
• Supports multi-voltage I/O on Port C with selectable input voltage thresholds.
• Integrates advanced digital peripherals including Configurable Custom Logic Look-up Tables and Zero-Cross Detectors.

Applications

• Industrial control systems requiring robust analog signal conditioning
• Battery-powered applications needing fast wake-up and low sleep current
• Smart metering devices utilizing high-precision internal oscillators
• Building automation and climate control units

Procurement Notes

Verify the specific suffix 'I' indicates the Industrial temperature grade (-40°C to 85°C). Confirm the '/PT' designation corresponds to the TQFP package type. Ensure compatibility with existing AVR DB family designs due to pin and feature compatibility across the series. Check for any specific ordering requirements regarding programming interfaces or firmware locking mechanisms.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. Choose this model for applications needing 128 KB of Flash and 16 KB of SRAM in a 48-pin form factor. Consider this part for designs requiring multi-voltage I/O capabilities and precise analog performance with integrated op-amps and comparators.

Part Context

This device belongs to the AVR DB family, which offers full pin and feature compatibility for vertical migration. It shares architectural similarities with other AVR DB variants but distinguishes itself through its specific memory size and pin count configuration. The family utilizes Microchip's picoPower technology to scale low-power characteristics across different memory sizes.

Replacement Considerations

AVR128DB32-I/PT

FAQ

Is the AVR128DB48 fully compatible with other AVR DB family members?

Yes, the AVR128DB48 is fully pin and feature compatible with other devices in the AVR DB family, allowing for vertical migration without code modification.

What is the maximum operating frequency of the AVR128DB48?

The AVR128DB48 features an AVR CPU with a hardware multiplier that can run at clock speeds up to 24 MHz.

Does the AVR128DB48 support simultaneous master and slave operation on TWI/I2C?

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