AVR16EA32-E/PT

Overview

The AVR16EA32-E/PT is an 8-bit microcontroller from the AVR EA family, featuring a 16 KB Flash memory with read-while-write capability, 2 KB SRAM, and 512 bytes of EEPROM. It operates at a maximum clock frequency of 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with 24 channels, a 10-bit DAC, two analog comparators, and three USARTs. It utilizes a TQFP-32 package and supports industrial temperature ranges.

Feature Summary

• Features a hardware multiplier-equipped AVR CPU running up to 20 MHz with single-cycle I/O access.
• Includes advanced analog subsystems such as a 12-bit differential ADC with programmable gain amplifier and a 10-bit DAC.
• Supports CPU-independent inter-peripheral signaling via an integrated Event System.
• Provides true read-while-write operation for Flash memory to ensure continuous code execution during updates.

Applications

• Real-time control systems requiring high-speed analog processing
• Sensor nodes utilizing event-driven architectures
• Secondary safety monitoring equipment
• Closed-loop control applications

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with UPDI programming interfaces. Confirm that the extended temperature rating aligns with operational requirements. Cross-reference datasheet revision numbers to validate peripheral availability and electrical characteristics before finalizing procurement.

Selection Notes

Select this component when vertical migration within the AVR EA family is required without code modification. Choose this part for designs needing simultaneous host and client TWI operations or precise timing via the RTC. Consider the 32-pin form factor for balanced I/O density. Verify that the 20 MHz performance meets system latency constraints and that the 1.8V to 5.5V supply range fits the power architecture.

Part Context

This device belongs to the AVR EA family, which shares pin and feature compatibility across varying memory sizes. It represents a modern iteration of 8-bit AVRs, integrating smart analog features and low-power modes. The family supports horizontal migration to reduce pin counts while maintaining architectural consistency for scalable product development.

Replacement Considerations

AVR16EA28-E/PT offers identical functionality in a 28-pin package. AVR16EA48-E/PT provides increased I/O capacity in a 48-pin package. AVR32EA32-E/PT doubles the Flash and SRAM memory resources while maintaining the same footprint.