ATTINY824-XUR

Overview

The ATtiny824-XUR is an 8-bit microcontroller from the Microchip tinyAVR 2 family, utilizing the AVR CPU with a hardware multiplier. It features 8 KB of in-system programmable Flash memory, 1 KB of SRAM, and 128 bytes of EEPROM. The device supports a maximum clock frequency of 20 MHz and operates within a supply voltage range of 1.8V to 5.5V. It includes a 12-bit differential ADC with a Programmable Gain Amplifier (PGA), up to 18 general-purpose I/O pins, and multiple communication interfaces including USART, SPI, and TWI.

Feature Summary

• Features a high-performance low-power AVR CPU running at up to 20 MHz with single-cycle I/O access and a two-cycle hardware multiplier.
• Includes a 12-bit differential Analog-to-Digital Converter (ADC) with a Programmable Gain Amplifier (PGA) and up to 15 input channels.
• Supports flexible inter-peripheral signaling through an Event System and Configurable Custom Logic (CCL) with four Look-Up Tables.
• Provides versatile connectivity with dual USARTs, host/client SPI, and host/client TWI with dual address match capabilities.

Applications

• Industrial control systems requiring robust peripheral integration
• Battery-powered devices benefiting from low-power architecture and sleep modes
• Sensor interface applications utilizing the differential ADC and PGA
• Communication nodes using USART, SPI, or TWI protocols

Procurement Notes

Verify the specific ordering suffix 'XUR' corresponds to the TSSOP/SSOP package type and industrial temperature range (-40°C to +85°C). Confirm that the 'R' designation indicates Tape & Reel packaging if reel quantity is required for automated assembly. Ensure compatibility with existing design footprints for the selected package variant before finalizing procurement.

Selection Notes

Select this component when 8 KB of Flash and 1 KB of SRAM are sufficient for application code and data storage. Choose the ATtiny824 over smaller variants like the ATtiny424 if additional program space or RAM is needed without increasing pin count. Consider the 20-pin package availability in SOIC, SSOP, or VQFN formats based on board layout constraints and thermal requirements.

Part Context

The ATtiny824 belongs to the tinyAVR 2 family, which offers vertical migration compatibility with other devices in the series without code modification. This family integrates advanced digital peripherals and accurate analog features into a flexible, low-power architecture. The device shares architectural similarities with the ATtiny424, ATtiny826, and ATtiny827, differing primarily in memory size and pin count configurations.

Replacement Considerations

The ATtiny824 is fully pin and feature compatible with other devices in the tinyAVR 2 family, such as the ATtiny424, ATtiny826, and ATtiny827, allowing for vertical migration without code changes. Verify that alternative parts meet the specific memory and package requirements of the current design.