ATTINY167-MUR

Overview

The ATtiny167-MUR is an 8-bit microcontroller based on the AVR enhanced RISC architecture, featuring 16KB of In-System Programmable Flash, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates at speeds up to 16MHz within a voltage range of 1.8V to 5.5V. The device includes a 10-bit ADC with 11 single-ended channels, a LIN/UART controller, SPI, USI, two timer/counters, and an analog comparator. It is housed in a 32-pin VQFN package.

Feature Summary

• High-performance 8-bit AVR CPU executing most instructions in a single clock cycle
• Non-volatile memory with high endurance for Flash and EEPROM
• Integrated communication interfaces including LIN controller, UART, SPI, and USI
• Advanced analog features with 10-bit ADC, programmable gain, and temperature sensor

Applications

• LIN bus node applications requiring software-based protocol handling
• Industrial control systems utilizing robust I/O and timer capabilities
• Battery-powered devices benefiting from multiple low-power sleep modes
• Embedded sensors leveraging internal temperature sensing and ADC

Procurement Notes

Verify the specific speed grade suffix (e.g., -MU) against the required operating frequency and voltage conditions. Confirm the package type matches the design footprint. Ensure the ordering code corresponds to the tape and reel configuration if automated assembly is planned. Cross-reference the datasheet revision for any errata relevant to the production batch.

Selection Notes

Select this component when 16KB program memory is required alongside extensive peripheral integration. It is suitable for designs needing hardware compatibility with the ATtiny87 but with doubled memory capacity. Consider the industrial temperature range and wide voltage operation for harsh environments. Evaluate power consumption requirements against the available idle and power-down modes.

Part Context

This part belongs to the tinyAVR 1-series family, specifically the ATtiny87/167 group. It shares architectural similarities with other AVR microcontrollers but offers distinct memory sizes and peripheral sets optimized for cost-sensitive embedded applications. The MUR suffix indicates a specific packaging and reel format for surface-mount assembly.

Replacement Considerations

The ATtiny87 is a direct hardware and software compatible alternative with reduced Flash memory. Other Microchip 8-bit AVRs may require significant code adaptation due to architectural differences. Verify pinout compatibility if substituting with packages like SOIC or TSSOP.