ATTINY44V-15MT

Overview

The ATTINY44V-15MT is an automotive-grade 8-bit AVR microcontroller featuring a 20-lead QFN package. It provides 4 KB of system-in-programmable Flash memory, 256 bytes of EEPROM, and 256 bytes of SRAM. The device operates within a voltage range of 1.8 V to 3.6 V and supports clock frequencies up to 8 MHz in this specific voltage window. It includes an 8-channel 10-bit ADC, analog comparator, and multiple timer/counters with PWM capabilities.

Feature Summary

• Automotive qualification for operation between -40°C and +85°C
• Low-voltage operation down to 1.8 V
• Integrated 10-bit Analog-to-Digital Converter
• In-system programmable non-volatile memory

Applications

• Automotive electronic control units
• Vehicle sensor interfaces
• Low-power embedded automotive systems

Procurement Notes

Verify the component matches the specific automotive grade requirements. Confirm the package type corresponds to the 20-lead QFN designation. Ensure the operating voltage and temperature ranges align with the target application environment before integration.

Selection Notes

Select this variant when automotive reliability standards are required alongside low-voltage constraints. The 4 KB Flash capacity suits moderate code complexity. Consider the 20-lead QFN form factor for compact PCB layouts requiring surface-mount assembly.

Part Context

This part belongs to the ATtiny44V series, designed specifically for automotive environments. It shares the core AVR architecture with standard commercial variants but adheres to stricter manufacturing and testing protocols defined in Appendix B of the automotive datasheet.

Replacement Considerations

ATtiny44V-15SST (SOIC package)

FAQ

What is the maximum operating frequency at 1.8V?

At 1.8V, the maximum operating frequency is limited to 4 MHz.

Does this device support Brown-Out Detection?

Yes, it features a programmable Brown-Out Detector (BOD) with selectable threshold levels.