AVR32EA48-I/PT

Overview

The AVR32EA48-I/PT is an 8-bit microcontroller from the AVR EA series, manufactured by Microchip Technology. It features a 32 kB system-in-programmable flash memory with true read-while-write capability and 4 kB of SRAM. The device operates at a maximum clock frequency of 20 MHz and includes a 12-bit ADC with a programmable gain amplifier, a 10-bit DAC, two analog comparators, and three USARTs. It utilizes a TQFP-48 package, supports SMD/SMT mounting, and functions within a voltage range of 1.8 V to 5.5 V across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Features true read-while-write (RWW) capability for uninterrupted code execution during flash memory operations.
• Integrates a high-resolution 12-bit ADC with a programmable gain amplifier for precise signal conditioning.
• Includes advanced digital peripherals such as configurable custom logic (CCL) and an event system for low-CPU-load tasks.
• Supports flexible clocking options including internal oscillators with auto-tuning and external crystal inputs.

Applications

• Battery-powered sensor nodes requiring low power consumption and long data retention.
• Industrial control systems utilizing analog signal processing via the PGA-enabled ADC.
• Smart energy metering applications benefiting from RWW flash capabilities.
• General-purpose embedded controllers needing multiple serial communication interfaces.

Procurement Notes

Verify the specific suffix 'I/PT' corresponds to the industrial temperature grade (-40°C to +85°C) and TQFP-48 packaging. Confirm that the ordering part number matches the required pinout and electrical specifications exactly. Check for any recent lifecycle status updates or obsolescence notices directly from Microchip Technology before finalizing procurement decisions.

Selection Notes

Select this component when a balance of moderate flash capacity and rich analog peripherals is required in a compact 48-pin form factor. It is suitable for designs needing simultaneous read/write operations without halting the CPU. Consider alternative pin counts within the AVR32EA family if I/O requirements exceed the available 27 pins on this specific package.

Part Context

This device belongs to the AVR EA series, which emphasizes flexibility and low power through its hardware multiplication unit and event-driven architecture. The series integrates smart analog subsystems and advanced digital logic, targeting applications that demand efficient peripheral management without heavy CPU intervention.

Replacement Considerations

Check for other variants within the AVR32EA28/32/48 family that offer different pin counts or memory sizes while maintaining the same core architecture and peripheral set.

FAQ

What is the maximum operating voltage for the AVR32EA48-I/PT?

The device supports a supply voltage range from 1.8 V to 5.5 V.

Does this MCU support read-while-write operations?

Yes, it features true read-while-write (RWW) capability in its 32 kB flash memory.

How many analog-to-digital converter channels are available?

The datasheet specifies 24 ADC channels for this specific package variant.