ATTINY261V-10SUR

Overview

The ATTINY261V-10SUR is an 8-bit AVR microcontroller in a 20-pin SOIC package. It features 2 KByte of In-System Programmable Flash, 128 Bytes of EEPROM, and 128 Bytes of SRAM. The device operates at a maximum frequency of 10 MHz with a supply voltage range of 1.8 V to 5.5 V. It includes 16 programmable I/O lines, an 11-channel 10-bit ADC, a Universal Serial Interface, and three PWM outputs.

Feature Summary

• AVR enhanced RISC architecture with single-cycle execution for high efficiency
• In-system programmable non-volatile memory with data retention capabilities
• Integrated analog-to-digital converter with multiple channel options
• Multiple software-selectable power saving modes including idle and power-down

Applications

• Battery-powered embedded systems requiring low active current consumption
• Industrial control applications utilizing the industrial temperature range
• Sensor interface circuits leveraging the on-chip ADC and analog comparator
• General-purpose logic control using the universal serial interface

Procurement Notes

Verify the specific suffix 'V' indicates the extended voltage range (1.8V–5.5V) compared to standard variants. Confirm the '10' speed grade corresponds to the 10 MHz maximum operating frequency. Ensure the 'SUR' designation matches the required tape-and-reel packaging format for surface-mount assembly processes.

Selection Notes

Select this component when a low pin-count solution with integrated analog peripherals is required. The V-series variant supports operation down to 1.8 V, suitable for battery applications. Consider the 2 KByte Flash limit for code size constraints. Verify that the 10-bit ADC resolution meets signal processing requirements before choosing over higher-resolution alternatives.

Part Context

This part belongs to the ATtiny261/V family within the Microchip tinyAVR series. It shares architectural similarities with the ATtiny461 and ATtiny861, differing primarily in memory capacities. The device utilizes the mature AVR core technology designed for cost-sensitive, low-power 8-bit control applications.

Replacement Considerations

Direct substitutes include the ATTINY261-10SU for standard voltage operation or ATTINY261V-10PU for PDIP packaging. Cross-family replacements like the ATTINY1614 require firmware adaptation due to different peripheral architectures.