ATTINY25-15MT

Overview

The ATTINY25-15MT is an automotive-grade 8-bit AVR microcontroller from Microchip Technology, featuring a 2 KB in-system programmable flash memory, 128 bytes of EEPROM, and 128 bytes of internal SRAM. It operates on a 2.7V to 5.5V supply voltage with a maximum clock frequency of 15 MHz at the upper voltage range. The device utilizes a high-performance RISC architecture executing most instructions in a single clock cycle. It includes six programmable I/O lines, a 10-bit ADC with four single-ended channels, two differential pairs, and multiple timer/counters with PWM outputs.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 Grade 1 standards for extended temperature operation
• Enhanced RISC core delivering up to 1 MIPS per MHz throughput with single-cycle execution
• Integrated debugWIRE system enabling in-circuit debugging via a single pin interface
• Low-power consumption across idle, ADC noise reduction, and power-down modes

Applications

• Automotive electronic control units requiring robust environmental tolerance
• Sensor management systems utilizing the integrated 10-bit ADC
• Embedded controllers employing SPI-based in-system programming
• IoT endpoints leveraging low-power sleep modes for battery efficiency

Procurement Notes

Verify the specific suffix 'MT' against official Microchip documentation to confirm package type and temperature grade alignment. Ensure the ordering code matches the required automotive qualification level. Cross-reference datasheet revision history for any updates to electrical characteristics or pin configurations before finalizing procurement specifications.

Selection Notes

Select this component when automotive reliability and wide operating temperature ranges are mandatory. The 15 MHz speed grade offers higher processing capability than lower-speed variants within the same family. Consider the 20-pin QFN package availability if board space constraints require a compact surface-mount solution with exposed thermal pads.

Part Context

This part belongs to the ATtiny25/45/85 Automotive series, manufactured under ISO-TS-16949 standards. It shares the core AVR architecture with industrial counterparts but features enhanced durability and testing protocols suitable for harsh automotive environments. The 'V' suffix typically denotes 1.8V operation, whereas this model specifies standard automotive voltage ranges.

Replacement Considerations

Direct substitutes include other ATtiny25 variants with matching speed grades and packages. Verify that replacement parts maintain the same AEC-Q100 qualification status and temperature range identifiers to ensure functional equivalence in automotive applications.