AVR16EB28-E/SS

Overview

The AVR16EB28-E/SS is an 8-bit microcontroller from the AVR EB 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 temperature ranges up to +125°C. Key peripherals include a 12-bit differential ADC with PGA, two analog comparators, multiple timers (TCB, TCE, TCF), USART, SPI, TWI, and an event system.

Feature Summary

• Features a flexible low-power architecture with an 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 functions.
• Supports vertical migration without code modification due to full pin and feature compatibility within the family.
• Provides advanced digital peripherals including Configurable Custom Logic (CCL) Look-up Tables and Waveform Extension.

Applications

• Applications requiring high-precision internal oscillator auto-tuning for improved accuracy.
• Systems utilizing the single-pin Unified Program and Debug Interface (UPDI).
• Designs needing simultaneous host and client operation on the TWI/I2C interface.
• Low-power applications leveraging three distinct sleep modes including Power-Down with full data retention.

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package style and temperature range. The 'E' suffix indicates an extended temperature range of -40°C to +125°C, while 'SS' denotes the SSOP package. Ensure that the preliminary status of the datasheet does not impact final production requirements. Confirm availability through authorized distributors as product status may change.

Selection Notes

Select this component when vertical migration within the AVR EB Family is required without code changes. Consider the 28-pin variant if 24 general-purpose I/O pins are needed alongside the full peripheral set. Evaluate the 12-bit ADC resolution and PGA features for signal conditioning needs. Check if the 20 MHz maximum frequency meets timing constraints compared to higher-speed family members.

Part Context

This part belongs to the AVR16EB14/20/28/32 series, which shares a common core and peripheral set across different pin counts. The AVR EB Family utilizes the latest Microchip technology for low-power operation. Devices in this series are designed for easy migration, allowing designers to scale pin counts horizontally or vertically while maintaining software compatibility.

Replacement Considerations

AVR16EB28-I/SS offers the same specifications but with an industrial temperature range (-40°C to +85°C). AVR32EB28-E/SS provides increased memory capacity while maintaining pin compatibility. Verify that any substitute maintains the required extended temperature rating and package dimensions.