ATTINY84A-MUR

Overview

The ATTINY84A-MUR is an 8-bit microcontroller based on the AVR enhanced RISC architecture, featuring 8K bytes of in-system programmable Flash memory. It operates at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes 512 bytes of EEPROM and 512 bytes of SRAM. It provides 12 general-purpose I/O lines and supports industrial temperature ranges from -40°C to +85°C. The component utilizes a 20-pad QFN/MLF package.

Feature Summary

• Executes powerful instructions in a single clock cycle for high throughput efficiency.
• Features non-volatile memory segments with high endurance for Flash and EEPROM data retention.
• Includes peripheral modules such as an 8-bit Timer/Counter, 16-bit Timer/Counter, and a 10-bit ADC with programmable gain.
• Supports low power consumption through multiple software-selectable sleep modes.

Applications

• In-system programming via SPI interface
• On-chip debug system using debugWIRE
• Pin change interrupt handling

Procurement Notes

Verify the specific ordering code matches the required speed grade and package type. Confirm that the suffix indicates tape and reel packaging. Ensure the component meets RoHS compliance standards. Check for any applicable lead finish specifications. Validate the industrial temperature rating against application requirements.

Selection Notes

Select this model when 8K Flash capacity is required within a compact QFN footprint. Consider the 20 MHz performance limit relative to the operating voltage. Evaluate the need for the specific industrial temperature range. Compare pin count availability against other variants in the ATtiny family.

Part Context

This component belongs to the ATtiny24A/44A/84A series of low-power CMOS 8-bit microcontrollers. The series shares a common core architecture but varies in memory sizes. The ATtiny84A variant specifically offers the largest memory configuration within this group.

Replacement Considerations

ATtiny84A-MU serves as a tray-packaged alternative. ATtiny84A-MMHR is a VQFN tape and reel option. ATtiny84A-SSFR is a SOIC tape and reel variant.