ATTINY3226-XU

Overview

The ATtiny3226-XU is an 8-bit microcontroller from the tinyAVR® 2 family, featuring a 20-pin VQFN package. It integrates a high-performance AVR CPU with hardware multiplier running at up to 20 MHz. The device provides 32 KB of Flash memory, 3 KB of SRAM, and 256 B of EEPROM. Key peripherals include a 12-bit differential ADC with PGA, six-channel Event System, Configurable Custom Logic (CCL), one TCA, two TCBs, and an RTC. Communication interfaces consist of two USARTs, SPI, and TWI.

Feature Summary

• High-performance low-power architecture with single-cycle I/O access and vectored interrupts
• Advanced analog capabilities including a 12-bit differential ADC with Programmable Gain Amplifier
• Flexible peripheral connectivity via Event System and Configurable Custom Logic for independent signaling
• Robust system management with multiple sleep modes and comprehensive security features

Applications

• Industrial control systems requiring safety-critical performance
• Automotive applications meeting AEC-Q100 qualification standards
• Battery-powered devices utilizing low-power sleep modes
• Sensor interface modules leveraging differential ADC measurements

Procurement Notes

Verify the specific ordering suffix against the manufacturer's catalog to confirm package type and temperature range. Ensure compatibility with existing design constraints regarding pin count and memory requirements. Confirm that the selected variant meets the necessary industrial or automotive qualification standards required for the target application environment.

Selection Notes

Select this component when vertical migration within the tinyAVR® 2 family is desired without code modification. Choose this model for designs requiring 20 pins with extensive peripheral support. Consider this part for applications needing high-speed processing combined with precise analog signal acquisition capabilities.

Part Context

This device belongs to the tinyAVR® 2 family, designed for scalable embedded solutions. It offers horizontal and vertical migration paths within the series. The ATtiny3226 specifically bridges feature sets between smaller and larger pin-count devices in the same family, maintaining software compatibility across variants.

Replacement Considerations

ATtiny3224 and ATtiny3227 are pin-compatible alternatives within the same family offering different pin counts.