ATTINY861-20MUR

Overview

The ATTINY861-20MUR is an 8-bit AVR microcontroller featuring 8KB of In-System Programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates at a maximum frequency of 20 MHz with a supply voltage range of 2.7V to 5.5V. The device includes 16 programmable I/O lines, a 10-bit ADC with 11 single-ended channels, three high-frequency PWM outputs, and two timer/counters. It utilizes a 32-pad MLF package.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle
• Non-volatile memory with high endurance for Flash and EEPROM
• Integrated analog peripherals including a 10-bit ADC and comparator
• Multiple power-saving modes for optimized energy consumption

Applications

• Battery-powered embedded systems requiring low power operation
• Industrial control applications within industrial temperature ranges
• Consumer electronics utilizing the high-speed ADC and PWM features

Procurement Notes

Verify the specific speed grade suffix corresponds to the required 20 MHz performance level at the target operating voltage. Confirm the MLF package variant matches the PCB footprint requirements. Ensure the component status is active for new designs, as older revisions may be obsolete.

Selection Notes

Select this model when 8KB program memory and 20 MHz processing speed are necessary. Choose the MLF package for compact surface-mount designs. Consider the 2.7V minimum voltage requirement if operating below standard 3.3V logic levels without external regulation.

Part Context

This component belongs to the ATtinyx61 family of 8-bit AVR microcontrollers. It shares architectural similarities with the ATtiny261 and ATtiny461 but offers higher memory capacity. The family is designed for cost-sensitive applications requiring efficient code execution and peripheral integration.

Replacement Considerations

Direct substitutes include other variants within the ATtinyx61 family such as the ATTINY861V series for lower voltage operation or different package options like PDIP-20.