ATTINY25-20MF

Overview

The ATtiny25-20MF is an 8-bit AVR microcontroller in a 20-pad QFN/MLF package. It features 2K bytes of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device operates at speeds up to 20 MHz with supply voltages between 4.5V and 5.5V. It includes six programmable I/O lines, a 10-bit ADC, two PWM channels, and a Universal Serial Interface.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle
• Non-volatile memory with high endurance for program and data storage
• Integrated peripheral set including timers, ADC, and serial interface
• Multiple power-saving modes for optimized energy consumption

Applications

• Battery-powered embedded systems requiring low power consumption
• Simple control applications using the 8-bit timer and PWM outputs
• Data acquisition tasks utilizing the 10-bit ADC and analog comparator
• Serial communication interfaces via the USI module

Procurement Notes

Verify the specific suffix 'MF' corresponds to the 20-pad QFN/MLF package and industrial temperature range (-40°C to +125°C). Confirm the speed grade '20' indicates operation up to 20 MHz at 4.5V to 5.5V. Ensure the component is Pb-free and RoHS compliant as per Microchip standards. Check for any specific revision letters associated with the lot code to identify potential errata conditions.

Selection Notes

Select this model when a compact QFN footprint is required for space-constrained designs. The 20MHz speed grade suits applications needing higher processing throughput within the ATtiny25 memory constraints. Consider the -20MF variant over lower speed grades if system timing requirements exceed 10MHz performance levels at standard 5V logic levels.

Part Context

This component belongs to the ATtiny25/45/85 family of 8-bit AVR microcontrollers. It shares the same core architecture and peripheral set as the ATtiny45 and ATtiny85, differing primarily in memory capacity. The ATtiny25 offers the smallest flash memory size in the series, making it suitable for cost-sensitive or code-size-limited applications.

Replacement Considerations

ATtiny25-20MU

FAQ

What is the maximum operating frequency for the ATtiny25-20MF?

The ATtiny25-20MF supports a maximum operating frequency of 20 MHz when supplied with a voltage between 4.5V and 5.5V.

Does the ATtiny25-20MF support in-system programming?

Yes, the device supports In-System Programming (ISP) via the SPI port, allowing program memory to be reprogrammed without removing it from the circuit.