ATTINY261-15MZ

Overview

The Atmel ATTINY261-15MZ is an 8-bit AVR RISC microcontroller featuring 2 KB of in-system programmable Flash memory, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates at a maximum frequency of 16 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes an 11-channel 10-bit ADC, two 8-bit timer/counters, and a single PWM channel. It utilizes a 32-pin HVQCCN (VQFN) package.

Feature Summary

• High-performance 8-bit AVR RISC architecture with most instructions executing in a single clock cycle.
• Integrated non-volatile memory system supporting high endurance for both program and data storage.
• Comprehensive analog subsystem including a multi-channel ADC with programmable gain amplifier and an on-chip temperature sensor.
• Flexible communication interfaces including SPI and USI supporting I2C and 3-wire bus protocols.

Applications

• Battery-powered embedded control systems requiring low power consumption.
• Industrial monitoring applications utilizing the internal temperature sensor and ADC.
• General-purpose logic control using the extensive GPIO and timer resources.

Procurement Notes

Verify the specific suffix 'MZ' against official Microchip documentation to confirm the exact package variant and temperature rating. Ensure compatibility with existing PCB footprints for the 32-pin QFN configuration. Cross-reference the speed grade '15' with datasheet specifications to validate operational frequency limits under intended voltage conditions.

Selection Notes

Select this component when a balance of moderate code space and rich peripheral integration is required within a compact footprint. The wide voltage range supports direct interfacing with various logic levels without additional level shifting. Consider the thermal performance of the exposed pad package for high-density designs.

Part Context

This part belongs to the ATtiny family of 8-bit microcontrollers, designed for cost-sensitive and space-constrained applications. It shares architectural similarities with the ATtiny461 and ATtiny861, differing primarily in memory capacity. The series emphasizes energy efficiency and ease of programming via standard ISP interfaces.

Replacement Considerations

Official substitutes include ATTINY261 variants with different speed grades or packages, such as ATTINY261-MU or ATTINY261-AU, provided pin compatibility and electrical characteristics align with the design requirements.