ATTINY84A-MF

Overview

The ATTINY84A-MF is an 8-bit AVR microcontroller featuring 8K bytes of in-system programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes twelve general-purpose I/O lines, a 10-bit ADC with eight single-ended channels, two timer/counters with PWM capabilities, and a universal serial interface. It supports industrial temperature ranges up to +125°C and utilizes a 20-pad QFN/MLF package.

Feature Summary

• High-performance 8-bit AVR architecture with advanced RISC instruction set
• Non-volatile memory segments with high endurance for Flash and EEPROM
• Integrated analog-to-digital converter with programmable gain stages
• Multiple power-saving modes including idle, standby, and power-down

Applications

• Industrial control systems requiring extended temperature operation
• Battery-powered devices utilizing low-power consumption modes
• Sensor interfaces using the integrated ADC and analog comparator
• General-purpose embedded applications with SPI or USI communication needs

Procurement Notes

Verify the specific ordering suffix MF corresponds to the matte tin lead finish and 20-pad QFN/MLF package configuration as defined in the official Microchip ATtiny24A/44A/84A datasheet. Confirm that the industrial grade designation aligns with the required operating temperature range for your application environment before finalizing procurement.

Selection Notes

Select this component when 8KB of program memory and 512 bytes of data storage are sufficient for the application logic. Ensure the design accommodates the 20-pin QFN/MLF footprint and thermal requirements for the +125°C industrial rating. Consider the 20MHz speed grade relative to the system's power budget and voltage supply constraints.

Part Context

This part belongs to the ATtiny24A/44A/84A family of 8-bit AVR microcontrollers manufactured by Microchip Technology. The family shares a common core architecture and peripheral set, differentiated primarily by memory sizes and package options. The ATTINY84A variant specifically provides the largest memory capacity within this series.

Replacement Considerations

Compatible substitutes include other variants from the ATtiny24A/44A/84A family such as ATTINY84A-MU or ATTINY84A-MMH, provided the package type matches the PCB layout. Cross-family replacements require verification of pin compatibility and software register mapping.