ATTINY261A-MFR

Overview

The ATTINY261A-MFR is an 8-bit AVR microcontroller featuring 2KB of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates at a maximum frequency of 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes 16 programmable I/O lines, an 11-channel 10-bit ADC, and a Universal Serial Interface (USI). Key peripherals include two Timer/Counters, an analog comparator, and a programmable watchdog timer.

Feature Summary

• High-performance 8-bit AVR architecture with up to 20 MIPS throughput at 20 MHz
• Non-volatile memory segments including ISP Flash, EEPROM, and internal SRAM
• Integrated 10-bit ADC with multiple single-ended and differential channel configurations
• Supports four software-selectable power-saving sleep modes

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing the analog comparator and timers
• Sensor interfaces leveraging the multi-channel ADC capabilities
• Communication nodes using the Universal Serial Interface (USI)

Procurement Notes

Verify that the suffix 'MFR' corresponds to the specific tape-and-reel packaging configuration required for your assembly line. Confirm the operating temperature grade matches your environmental specifications. Ensure the device revision aligns with your design's pinout and electrical characteristics. Cross-reference the ordering code with the manufacturer's current datasheet to validate availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a compact 8-bit solution with integrated analog features is needed. The ATtiny261A offers sufficient I/O and memory for simple control tasks while maintaining low power usage. Consider the 32-pad MLF package for space-constrained designs. Evaluate the 20MHz speed grade against the required processing load and voltage constraints to ensure optimal performance within the specified operating range.

Part Context

This part belongs to the ATtiny261A/461A/861A family, which shares a common core architecture but differs in memory sizes. The ATtiny261A specifically provides the smallest memory configuration within this series. It utilizes the enhanced RISC architecture typical of Microchip's AVR line, offering high code efficiency and low power consumption compared to conventional CISC microcontrollers.

Replacement Considerations

Direct substitutes within the same family include the ATtiny461A and ATtiny861A, which offer larger memory capacities but maintain pin compatibility. Verify that any replacement maintains the required package type and speed grade. Check for any minor differences in peripheral availability or electrical characteristics between the variants.