ATTINY167-SU

Overview

The ATtiny167-SU is an 8-bit microcontroller based on the AVR enhanced RISC architecture, manufactured by Microchip Technology. It features 16 KBytes of In-System Programmable Flash memory, 512 Bytes of EEPROM, and 512 Bytes of SRAM. The device operates within a voltage range of 1.8V to 5.5V and supports clock speeds up to 16 MHz at 4.5V–5.5V. It includes a 10-bit ADC with 11 single-ended channels, multiple timers, and a LIN/UART controller. The component is housed in a 20-pin SOIC package.

Feature Summary

• High-performance 8-bit AVR architecture executing most instructions in a single clock cycle
• Non-volatile memories including ISP Flash, EEPROM, and internal SRAM
• Integrated analog peripherals such as a 10-bit ADC and programmable current source
• Comprehensive communication interfaces including SPI, USI, and LIN/UART

Applications

• Embedded control systems requiring low power consumption
• LIN bus node implementations for automotive applications
• Battery-powered devices utilizing extended sleep modes
• Industrial monitoring using integrated temperature sensors and ADCs

Procurement Notes

Verify the specific suffix 'SU' corresponds to the 20-pin SOIC package variant when sourcing. Confirm that the operating voltage and speed grade requirements align with the 4.5V–5.5V range for maximum performance. Ensure compatibility with existing programming interfaces such as SPI or debugWIRE for firmware updates.

Selection Notes

Select this model over the ATtiny87 variant when application logic exceeds 8K bytes of program memory. Consider the industrial temperature range and robust I/O capabilities for demanding environments. Evaluate the need for the specific 20-pin SOIC footprint against alternative packages like VQFN if board space constraints exist.

Part Context

This component belongs to the ATtiny87/167 family of 8-bit microcontrollers. It shares hardware and software compatibility with the ATtiny87, differing primarily in Flash memory capacity. The series is designed for cost-effective embedded solutions using Microchip's high-density non-volatile memory technology.

Replacement Considerations

The ATtiny87 serves as a direct functional substitute if the application requires less than 8K bytes of Flash memory. Both devices share identical pinouts, instruction sets, and peripheral configurations.