ATTINY25-15ST

Overview

The ATTINY25-15ST is an automotive-grade 8-bit AVR microcontroller manufactured by Microchip Technology. It features a high-performance RISC core with 2KB of in-system programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device supports a maximum clock frequency of 15MHz and operates within a voltage range of 2.7V to 5.5V. It includes six programmable I/O lines, a 10-bit ADC, and multiple timer/counters. Designed for harsh environments, it meets AEC-Q100 Grade 1 standards and functions reliably across the extended temperature range of -40°C to +125°C.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 Grade 1 standards
• High-performance AVR RISC architecture enabling near 1MIPS per MHz throughput
• Integrated non-volatile memory with high endurance specifications
• Comprehensive peripheral set including timers, ADC, and serial interfaces

Applications

• Automotive electronic control units (ECUs)
• Sensor interface modules in vehicle systems
• Body electronics and lighting control applications
• Industrial embedded controllers requiring extended temperature stability

Procurement Notes

Verify that the specific suffix 'ST' corresponds to the requested package type and temperature grade as defined in the official ordering information. Confirm compliance with RoHS directives and automotive quality standards required for your assembly process. Ensure the source document explicitly lists this part number variant to avoid substitution errors during procurement.

Selection Notes

Select this component when designing systems requiring automotive qualification and extended temperature operation up to 125°C. It is suitable for applications needing low power consumption alongside moderate processing speed. Consider the available I/O count and memory size relative to application requirements before finalizing the design.

Part Context

This device belongs to the ATtiny25/45/85 family of 8-bit AVR microcontrollers. It shares architectural similarities with industrial variants but is specifically qualified for automotive environments. The family offers scalable memory options, with the ATtiny25 providing 2KB Flash, making it ideal for cost-sensitive embedded applications.

Replacement Considerations

Check for equivalent parts within the ATtiny25 series that may differ only in temperature grade or package style. Verify pin compatibility if substituting with other members of the AVR family.