AVR128DB32T-E/PT

Overview

The AVR128DB32T-E/PT 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 supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. It is housed in a 32-pin TQFP package and provides up to 26 general-purpose I/O pins.

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 differential ADC and op-amps
• Supports CPU-independent peripheral signaling via the Event System
• Integrates Configurable Custom Logic (CCL) Look-up Tables for custom digital functions

Applications

• Industrial control systems requiring robust analog signal conditioning
• Smart energy metering applications utilizing multi-voltage interfaces
• Motor control designs leveraging high-resolution PWM timers
• Low-power embedded devices operating across wide temperature ranges

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Industrial temperature grade (-40°C to +85°C) as specified in the official datasheet. Confirm the 'PT' suffix indicates the 32-pin Thin Quad Flat Package (TQFP). Ensure compatibility with your design's voltage requirements, which must fall between 1.8 V and 5.5 V. Cross-reference the specific revision letter in the datasheet title to ensure alignment with current errata and documentation updates.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. It is suitable for designs needing 128 KB of program memory and multiple analog peripherals. Consider this part if the application demands Multi-Voltage I/O capabilities or precise timing through the integrated Event System. It serves as a direct upgrade path for lower-memory variants like the AVR64DB32 while maintaining pin compatibility.

Part Context

This device belongs to the AVR128DB series, designed for next-generation 8-bit applications. It shares architectural similarities with other AVR DB parts but offers higher memory density. The family emphasizes low power consumption and high performance through its optimized CPU and peripheral set. It replaces older AVR architectures by providing enhanced analog features and flexible connectivity options in a compact footprint.

Replacement Considerations

AVR128DB32-I/PT

FAQ

Does the AVR128DB32T-E/PT support simultaneous master and slave operation on TWI?

Yes, the device includes Two-Wire Interface (TWI) modules capable of independent master and slave operation simultaneously on different pins.

What is the maximum clock frequency for the internal oscillator?

The high-precision internal oscillator (OSCHF) can be configured to run at frequencies up to 24 MHz.

How many channels does the differential ADC support?

The AVR128DB32 variant supports one 12-bit differential Analog-to-Digital Converter with 13 available channels.