AVR32DB48T-I/PT

Overview

The AVR32DB48T-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 32 KB of Flash memory, 4 KB of SRAM, and 512 bytes of EEPROM. The device offers 41 programmable I/O pins in a TQFP-48 package. Key peripherals include a 12-bit ADC with 18 channels, three op amps, a 10-bit DAC, and multiple communication interfaces such as USART, SPI, and TWI/I2C. Operating voltage ranges from 1.8 V to 5.5 V, with an industrial temperature range of -40°C to +85°C.

Feature Summary

• Features Multi-Voltage I/O (MVIO) on Port C for flexible voltage level interfacing.
• Includes an Event System for CPU-independent inter-peripheral signaling.
• Integrates Configurable Custom Logic (CCL) with programmable Look-up Tables.
• Supports low-power operation through multiple sleep modes including Idle, Standby, and Power-Down.

Applications

• Industrial control systems requiring robust analog signal processing
• Smart energy metering applications utilizing ZCD and high-precision ADCs
• Motor control designs leveraging TCD PWM and analog comparators
• General-purpose embedded devices needing versatile communication interfaces

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pin count and peripheral availability. Cross-reference the datasheet revision number to validate feature sets and electrical characteristics before finalizing procurement decisions.

Selection Notes

Select this component when vertical migration within the AVR DB family is required without code modification. Consider the 48-pin form factor for increased I/O density compared to smaller variants. Evaluate the need for specific analog peripherals like op amps or ZCDs which are abundant in this package size. Confirm that the 1.8V to 5.5V supply range meets system power requirements.

Part Context

This part belongs to the AVR32DB series, which shares architectural similarities with other AVR DB devices but offers a specific balance of memory and I/O capabilities. It is designed for applications needing enhanced analog performance and flexible logic configuration within a compact footprint. The device supports seamless integration into designs previously using older AVR architectures.

Replacement Considerations

AVR32DB48-E/PT

FAQ

What is the maximum operating frequency of the AVR32DB48T-I/PT?

The device features an AVR CPU with a hardware multiplier that runs at clock speeds up to 24 MHz.

Does the AVR32DB48 support simultaneous host and client operations on its I2C interface?

Yes, the TWI/I2C interface can operate simultaneously as a host and client on different pins.

How many General Purpose I/O pins are available on this device?

The AVR32DB48 provides up to 41/40 programmable General Purpose I/O pins, depending on the specific pin configuration and reset function usage.