ATTINY25V-15MT

Overview

The ATTINY25V-15MT is an automotive-grade 8-bit AVR microcontroller manufactured by Microchip Technology. It features a high-performance RISC core with 2 KB of in-system programmable Flash, 128 bytes of EEPROM, and 128 bytes of internal SRAM. The device supports a maximum clock frequency of 15 MHz and operates within a voltage range of 1.8 V to 5.5 V. It includes six programmable I/O lines, a 4-channel 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
• Enhanced power-saving modes including idle, ADC noise reduction, and power-down
• Integrated Universal Serial Interface (USI) supporting SPI and TWI protocols
• On-chip debug system (debugWIRE) for efficient development and testing

Applications

• Automotive electronic control units and sensor interfaces
• Industrial embedded systems requiring extended temperature stability
• Low-power battery-operated devices utilizing brown-out detection
• General-purpose logic control in constrained space applications

Procurement Notes

Verify that the specific suffix 'MT' corresponds to the requested package type and temperature grade as defined in the official ordering information. Confirm that the component meets the required AEC-Q100 Grade 1 qualification for your specific application environment. Ensure compatibility with existing programming tools for ISP and debugWIRE interfaces before finalizing procurement.

Selection Notes

Select this component when automotive qualification and extended temperature operation are mandatory requirements. The 1.8V minimum operating voltage allows for direct interfacing with low-voltage logic without level shifting. Consider the 15 MHz speed grade if higher processing throughput is needed compared to lower-speed variants within the same family.

Part Context

This part belongs to the ATtiny25/45/85 Automotive series, designed specifically for demanding automotive and industrial applications. It shares the core architecture with standard industrial versions but undergoes stricter manufacturing controls under ISO-TS-16949. The 'V' suffix indicates support for the lower 1.8V supply voltage, while the 'MT' suffix typically denotes a specific surface-mount package configuration.

Replacement Considerations

Direct replacements include other ATtiny25/45/85 variants with matching package and temperature grades. Verify that substitute parts maintain the same AEC-Q100 Grade 1 certification and 1.8V operating capability. Cross-reference pinouts and memory sizes to ensure functional equivalence.