AVR16EA28T-I/SS

Overview

The AVR16EA28T-I/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 industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit differential ADC with PGA, a 10-bit DAC, two analog comparators, three USARTs, one SPI, and one TWI interface.

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 and window compare analog comparators
• Supports true simultaneous read-while-write operations on in-system-programmable Flash memory
• Provides advanced digital peripherals including Configurable Custom Logic (CCL) with programmable Look-up Tables

Applications

• Industrial control systems requiring robust I/O and communication interfaces
• Sensor data acquisition applications utilizing high-resolution differential ADC
• Low-power embedded devices operating across extended temperature ranges
• Motor control and waveform generation using TCA and TCB timers

Procurement Notes

Verify the specific ordering suffix 'I' confirms the industrial temperature range (-40°C to +85°C) and 'T' indicates tape and reel packaging. Confirm that the SSOP-28 package matches your PCB footprint requirements. Ensure compatibility with the Unified Program and Debug Interface (UPDI) for programming and debugging needs.

Selection Notes

Select this component when vertical migration within the AVR EA family is required without code modification. Choose this part if the application demands a balance of moderate Flash size and extensive analog features like the 12-bit ADC and DAC. Consider the 28-pin form factor for space-constrained designs needing multiple I/O lines and communication ports.

Part Context

This device belongs to the AVR16EA28/32/48 series, which shares pin and feature compatibility for easy horizontal and vertical migration. The AVR EA family utilizes the latest Microchip technologies, offering a single-cycle I/O register access and a two-level interrupt controller for efficient processing.

Replacement Considerations

AVR16EA28T-E/SS offers the same specifications but supports an extended temperature range up to +125°C.