AVR32DB48-I/PT

Overview

The AVR32DB48-I/PT is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier and operating at clock speeds up to 24 MHz. It includes 32 KB of Flash memory, 4 KB of SRAM, and 512 bytes of EEPROM. The device is housed in a TQFP-48 package with a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit ADC with 18 channels, three op amps, two SPI interfaces, one TWI interface, five USARTs, and a 10-bit DAC.

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.
• Supports Configurable Custom Logic (CCL) with programmable Look-up Tables.
• Integrates Analog Signal Conditioning peripherals with internal resistor ladder configurations.

Applications

• Industrial control systems requiring robust analog signal processing.
• Smart energy metering applications utilizing high-resolution ADCs.
• Motor control designs leveraging zero-cross detectors and PWM timers.
• Low-power embedded devices using configurable sleep modes.

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature rating. Ensure compatibility with existing design constraints regarding pin count and peripheral availability. Cross-reference the datasheet revision to validate all electrical specifications 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 configuration for increased I/O density compared to smaller variants. Evaluate the need for multiple analog peripherals like op amps and ZCDs which are abundant in this package size.

Part Context

This part belongs to the AVR32DB28/32/48 series, designed for cost-sensitive applications needing advanced analog features. It shares architectural similarities with other AVR DB devices but offers a balanced mix of memory and I/O capabilities suitable for mid-range embedded projects.

Replacement Considerations

AVR32DB32-I/PT

FAQ

Does the AVR32DB48 support simultaneous host and client operation on TWI?

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

What is the maximum frequency for Timer/Counter type D operation?

An internal PLL provides up to 48 MHz for high-frequency operation of Timer/Counter type D.

Is the device compatible with standard I2C protocols?

Yes, it supports Standard mode (100 kHz), Fast mode (400 kHz), and Fast mode plus (1 MHz).