AVR16EA28T-E/SS

Overview

The AVR16EA28T-E/SS 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, and TWI interfaces.

Feature Summary

• Features a flexible low-power architecture with Event System for CPU-independent inter-peripheral signaling
• Includes accurate analog subsystems such as a 12-bit differential ADC with programmable gain amplifier
• Supports true simultaneous read-while-write operations on system in-programmable Flash memory
• Provides advanced digital peripherals including configurable custom logic and multiple timer/counters

Applications

• Real-time control systems requiring efficient processing
• Sensor nodes utilizing high-resolution analog input capabilities
• Secondary safety monitoring equipment for industrial applications

Procurement Notes

Verify the specific ordering suffix 'T' corresponds to tape and reel packaging requirements for your assembly line. Confirm that the 'E' suffix meets the extended temperature range specifications necessary for your operational environment. Ensure compatibility with the SSOP-28 package dimensions during PCB layout finalization.

Selection Notes

Select this component when vertical migration within the AVR EA family is required without code modification. Consider this part for designs needing pin and feature compatibility across varying flash sizes. Evaluate the 28-pin constraint against the total number of available general-purpose I/O pins needed for the application.

Part Context

This device belongs to the AVR EA family, which shares architectural similarities with other members like the AVR32EA28 and AVR64EA28. These devices offer horizontal and vertical migration paths, allowing designers to scale memory and peripheral counts while maintaining software compatibility across the series.

Replacement Considerations

AVR16EA28-E/SS (Tube version)

FAQ

Does the AVR16EA28T-E/SS support simultaneous host and client operation on its TWI interface?

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

What is the maximum clock frequency for the AVR CPU in this microcontroller?

The AVR CPU runs at clock speeds up to 20 MHz.