ATTINY261-15XD

Overview

The ATTINY261-15XD is an automotive-grade 8-bit AVR microcontroller featuring 2K bytes of in-system programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. It operates within a voltage range of 2.7V to 5.5V and supports clock frequencies up to 8MHz at the minimum voltage and 16MHz at 4.5V to 5.5V. The device includes 16 programmable I/O lines, a 10-bit ADC with multiple channels, timers, and a universal serial interface. It is qualified to AEC-Q100 Grade 1 standards and functions across an extended temperature range of -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for high reliability
• Enhanced RISC architecture delivering single-cycle instruction execution efficiency
• Integrated non-volatile memory with high endurance specifications for program and data storage
• Comprehensive peripheral set including analog-to-digital conversion and timer/counters

Applications

• Automotive electronic control units requiring robust environmental tolerance
• Sensor interface modules utilizing differential ADC inputs
• Low-power embedded systems operating in extreme temperature conditions

Procurement Notes

Verify that the specific suffix corresponds to the required package type and temperature grade. Confirm that the ordering information matches the intended application voltage and speed requirements. Ensure compliance with automotive quality standards if used in safety-critical environments. Check for any specific manufacturing or testing notes provided by the supplier.

Selection Notes

Select this component when automotive reliability and wide temperature operation are mandatory. Consider the 2K Flash capacity for code size limitations. Evaluate the 16MHz speed capability against system timing requirements at higher supply voltages. Ensure the 32-pad MLF or alternative packages fit the PCB layout constraints.

Part Context

This part belongs to the ATtiny261/461/861 family of 8-bit AVR microcontrollers designed for automotive applications. It shares architectural similarities with standard AVR cores but includes specific enhancements for automotive durability and extended operating ranges. The family offers scalable memory options while maintaining pin compatibility across variants.

Replacement Considerations

Direct substitutes include other parts from the ATtiny261/461/861 automotive series with matching memory sizes. Verify package compatibility and ensure equivalent electrical characteristics for voltage and temperature ranges.