AVR16EA32T-I/RXB

Overview

The AVR16EA32T-I/RXB 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 clock speeds up to 20 MHz within a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit differential ADC with a programmable gain amplifier, a 10-bit DAC, two analog comparators, and four 16-bit Timer/Counters type B. It utilizes a 32-pin VQFN package and supports industrial temperature ranges.

Feature Summary

• AVR CPU with hardware multiplier running at up to 20 MHz
• True read-while-write operation for non-volatile memory
• Integrated Event System for CPU-independent peripheral signaling
• Configurable Custom Logic with programmable Look-up Tables

Applications

• Industrial control systems requiring low-power architecture
• Sensor interfaces utilizing high-resolution ADC and PGA
• Battery-powered devices benefiting from flexible sleep modes
• Applications needing simultaneous host/client TWI/I2C operation

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pin count and peripheral availability. Confirm that the tape and reel packaging meets manufacturing requirements. Cross-reference datasheet revisions to validate feature sets before finalizing procurement specifications.

Selection Notes

Select this component when vertical migration within the AVR EA family is required without code modification. Consider the 32-pin variant for balanced I/O availability compared to the 28-pin version. Evaluate the 12-bit ADC resolution and PGA features for precision analog applications. Verify that the 20 MHz maximum frequency aligns with system timing requirements.

Part Context

This device belongs to the AVR® EA Family, which shares architectural similarities with other AVR microcontrollers but introduces advanced digital peripherals and accurate analog subsystems. The family supports horizontal and vertical migration, allowing designers to scale pin counts and memory sizes while maintaining software compatibility across different package options.

Replacement Considerations

AVR16EA32T-E/RXB (Extended Temperature)

FAQ

Does the AVR16EA32 support simultaneous TWI host and client operations?

Yes, the TWI interface supports dual address match and independent host and client operation on different pins.

What is the data retention period for the EEPROM?

The EEPROM has a data retention period of 40 years at 55°C.