AVR128DB48T-E/6LX

Overview

The AVR128DB48T-E/6LX is an 8-bit microcontroller from the AVR DB family, featuring a 128 KB Flash program memory, 16 KB SRAM, and 512 bytes of EEPROM. It operates at clock speeds up to 24 MHz using the AVR CPU with a hardware multiplier. The device includes a 12-bit differential ADC with 18 channels, a 10-bit DAC, three analog comparators, and three zero-cross detectors. It supports multi-voltage I/O on Port C and offers extensive connectivity via multiple USARTs, SPIs, and TWI interfaces.

Feature Summary

• Features Multi-Voltage I/O (MVIO) capability on specific ports for flexible voltage interfacing.
• Includes advanced analog subsystems such as a 12-bit differential ADC and configurable op-amps.
• Supports CPU-independent inter-peripheral signaling through the Event System.
• Provides Configurable Custom Logic (CCL) with programmable Look-up Tables.

Applications

• Industrial control systems requiring precise analog signal conditioning
• Smart metering applications with high pin count requirements
• Building automation and climate control units
• Power management devices utilizing zero-cross detection

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct suffix alignment. Confirm that the 'E' designation matches the required extended temperature range specifications. Ensure the package type corresponds to the intended PCB layout constraints. Cross-reference the datasheet revision to validate peripheral availability and electrical characteristics prior to procurement.

Selection Notes

Select this component when 128 KB of Flash memory and 16 KB of SRAM are required within a 48-pin footprint. Consider this device for designs needing multi-voltage I/O compatibility or extensive analog peripherals like the 12-bit ADC. Evaluate the trade-off between pin count and feature density compared to the 28-pin or 64-pin variants in the same family.

Part Context

This microcontroller belongs to the AVR DB family, which emphasizes low-power architecture and high-performance analog capabilities. It shares architectural similarities with other AVR devices but introduces enhanced event systems and configurable logic. The family supports vertical migration without code modification, allowing designers to scale features while maintaining software compatibility across different pin counts.

Replacement Considerations

AVR128DB48-I/PT serves as a direct industrial-grade alternative within the same package family. AVR128DB64T-E/PT offers increased I/O capacity in a larger 64-pin package. AVR64DB48T-E/PT provides a lower memory configuration option in the identical 48-pin form factor.