AVR16EA28T-E/STX

Overview

The AVR16EA28T-E/STX 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 and window compare functions
• Supports vertical migration without code modification across the AVR EA family due to pin and feature compatibility

Applications

• Real-time control systems requiring efficient processing
• Sensor nodes utilizing integrated analog peripherals
• Secondary safety monitoring applications

Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm package type and temperature grade. Ensure the 'E' designation matches the required extended temperature range and 'T' indicates tape and reel packaging. Cross-reference the datasheet revision to confirm all electrical characteristics and peripheral specifications align with your design requirements before finalizing procurement.

Selection Notes

Select this component when designing systems that require high integration in a small footprint. The AVR EA family allows for easy scaling between different memory sizes while maintaining software compatibility. Consider the available I/O count and peripheral set relative to the 28-pin package constraints. Evaluate power consumption profiles against the available sleep modes to optimize battery life if applicable.

Part Context

This part belongs to the AVR EA family, which utilizes advanced Microchip technologies for low-power operation. The family offers various pin counts and memory configurations, enabling designers to choose the optimal balance between performance and cost. The unified programming interface simplifies development and debugging processes across the entire series.

Replacement Considerations

AVR16EA28T-E/SS

FAQ

What is the maximum clock frequency of the AVR16EA28T-E/STX?

The device features an AVR CPU running at clock speeds up to 20 MHz.

Does the AVR16EA28 support simultaneous host and client operations on its TWI interface?

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