AVR64DB48T-I/6LX

Overview

The AVR64DB48T-I/6LX is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 64 KB Flash, 8 KB SRAM, and 512 B EEPROM. The device operates between 1.8 V and 5.5 V within an industrial temperature range of -40°C to +85°C. It utilizes a 48-pin VQFN package (suffix 6LX) in tape and reel format (suffix T). Key peripherals include a 12-bit ADC, three op amps, three zero-cross detectors, and multi-voltage I/O.

Feature Summary

• Multi-Voltage I/O (MVIO) on Port C enables direct bidirectional communication across different power domains without external level shifters.
• Integrated analog subsystems include three operational amplifiers with internal resistor ladders and three zero-cross detectors for power control applications.
• Configurable Custom Logic (CCL) provides up to six programmable Look-Up Tables for complex digital logic implementation independent of the CPU.
• Event System allows predictable inter-peripheral signaling and CPU-independent operation to reduce system latency.

Applications

• Industrial control systems requiring real-time processing and noise immunity
• Smart energy meters and IoT devices utilizing low-power architectures
• Motor control applications leveraging zero-cross detectors and PWM timers
• Complex designs involving multiple voltage domains

Procurement Notes

Verify the specific ordering suffixes against official Microchip documentation to ensure correct package type and carrier configuration. Confirm that the 'I' designation matches the required industrial temperature range and that the 'T' indicates tape and reel packaging. Cross-reference the datasheet revision to validate peripheral availability and electrical characteristics prior to finalizing procurement specifications.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. Choose this part if the design demands multi-voltage I/O capabilities or advanced analog features like op amps and zero-cross detection. Ensure the 48-pin VQFN footprint aligns with the PCB layout constraints and that the 64 KB memory capacity meets application requirements.

Part Context

This device belongs to the AVR64DB28/32/48/64 series, which shares pin and feature compatibility for easy vertical migration. The '6LX' suffix specifically denotes the 48-pin VQFN package style, while 'T' indicates tape and reel delivery. It complements other variants in the DB family by offering a balance of I/O count and peripheral richness in a compact form factor.

Replacement Considerations

AVR64DB48T-I/PT

FAQ

What does the '6LX' suffix indicate for this microcontroller?

The '6LX' suffix identifies the specific package style as a 48-pin Very Thin Quad Flat No-lead (VQFN) package.

How does Multi-Voltage I/O (MVIO) function on this device?

MVIO on Port C allows the I/O pins to operate at different voltage levels than the core supply, enabling true level-shifted bidirectional communication with devices in different power domains.

Is code modification needed when migrating vertically within the AVR DB family?

No, vertical migration within the AVR DB family is possible without code modification because the devices are fully pin and feature compatible.