ATTINY826-XF

Overview

The ATtiny826-XF is an 8-bit microcontroller from the Microchip tinyAVR® 2 family, utilizing the AVR CPU with a hardware multiplier. It features 8 KB of Flash memory, 1 KB of SRAM, and 128 B of EEPROM. The device supports a maximum clock frequency of 20 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. It includes a 12-bit differential ADC with PGA, up to 18 general-purpose I/O pins, and multiple communication interfaces including USART, SPI, and TWI.

Feature Summary

• Integrated 12-bit differential Analog-to-Digital Converter (ADC) with Programmable Gain Amplifier (PGA) for high-precision analog signal acquisition.
• Supports flexible inter-peripheral signaling through an Event System, allowing CPU-independent operation of peripherals.
• Features Configurable Custom Logic (CCL) with programmable Look-Up Tables (LUT) for implementing complex digital logic without software overhead.
• Includes a Real-Time Counter (RTC) capable of running from an external crystal or internal ultra-low power oscillator for precise timekeeping.

Applications

• Battery-powered sensor nodes requiring low-power operation and accurate analog measurements.
• Industrial control systems utilizing event-driven peripheral interactions and custom logic implementation.
• Smart home devices needing robust communication via USART, SPI, or TWI interfaces.
• Automotive applications meeting AEC-Q100 qualification standards for extended temperature ranges.

Procurement Notes

Verify the specific ordering suffix 'XF' against official Microchip documentation to confirm package type (TSSOP/SSOP) and temperature grade (-40°C to +125°C). Ensure compatibility with UPDI programming tools. Check for automotive variants if AEC-Q100 compliance is required for your application environment.

Selection Notes

Select this component when 8 KB of program memory and 1 KB of RAM are sufficient for the application logic. Choose over smaller variants like ATtiny426 if additional code space is needed. Opt for this part over larger family members if pin count and feature set align with the 20-pin requirement, ensuring cost-effective resource utilization.

Part Context

This device belongs to the tinyAVR® 2 family, designed for vertical migration without code modification across different pin counts and memory sizes within the same series. It shares architectural similarities with ATtiny426 and ATtiny827 but offers distinct memory configurations suitable for mid-range embedded applications.

Replacement Considerations

ATtiny826-MU

FAQ

What is the maximum operating frequency of the ATtiny826-XF?

The ATtiny826-XF can operate at a maximum frequency of 20 MHz.

Does the ATtiny826-XF support analog input multiplexing?

Yes, it features a 12-bit differential ADC with up to 15 input channels and a Programmable Gain Amplifier (PGA).