AVR16EA48T-E/PT

Overview

The AVR16EA48T-E/PT is an 8-bit microcontroller from the AVR EA family, featuring a 20 MHz AVR CPU with hardware multiplier. It includes 16 KB of Flash memory with read-while-write capability, 2 KB of SRAM, and 512 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports extended industrial temperatures from -40°C to +125°C. Key peripherals include a 12-bit differential ADC with PGA, a 10-bit DAC, two analog comparators, three USARTs, SPI, TWI, and an event system for inter-peripheral signaling.

Feature Summary

• Features a flexible low-power architecture with an Event System for predictable inter-peripheral signaling without CPU intervention.
• Includes accurate analog subsystems such as a 12-bit differential ADC with programmable gain amplifier and window compare functions in analog comparators.
• Supports vertical migration across the AVR EA family with full pin and feature compatibility without code modification.

Applications

• Real-time control systems requiring precise analog signal processing
• Sensor nodes utilizing high-resolution ADC inputs
• Secondary safety monitoring applications

Procurement Notes

Verify the ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'T' indicates tape and reel packaging. Confirm the specific datasheet revision matches your design requirements. Ensure the UPDI programming interface is compatible with your debugger toolchain before finalizing procurement.

Selection Notes

Select this part when extended temperature operation is required alongside the standard 16 KB Flash capacity of the AVR EA series. Compare against the AVR32EA48 or AVR64EA48 if larger memory resources are needed, noting that these variants maintain pin compatibility. Verify that the 2 KB SRAM meets the stack and data storage requirements of the application firmware.

Part Context

This component belongs to the AVR EA family, which utilizes the latest Microchip technologies for efficient real-time control. The family offers horizontal and vertical migration paths, allowing designers to scale pin counts and memory sizes while maintaining software compatibility. The AVR16EA48 serves as the entry-level option in the 48-pin package lineup.

Replacement Considerations

AVR16EA48-I/PT (Industrial temperature variant)

FAQ

Does the AVR16EA48 support simultaneous host and client operations on the TWI interface?

Yes, the TWI/I2C interface supports independent host and client operation in dual mode, allowing it to function as both simultaneously on different pins.

What is the maximum clock frequency for the AVR16EA48?

The AVR CPU runs at a maximum clock speed of 20 MHz.