ATTINY45V-10MU

Overview

The ATTINY45V-10MU is an 8-bit AVR microcontroller featuring 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. It operates at a maximum clock frequency of 10 MHz with a supply voltage range of 1.8 V to 5.5 V. The device utilizes a 20-pad QFN/MLF package (20M1) and supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• AVR enhanced RISC architecture executing most instructions in a single clock cycle
• In-System Programmable Flash memory with high endurance write/erase cycles
• Integrated Universal Serial Interface (USI) supporting SPI and TWI protocols
• Four-channel 10-bit Analog-to-Digital Converter (ADC) with programmable gain

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications within specified temperature ranges
• Sensor interface circuits utilizing the integrated ADC capabilities
• General-purpose digital logic replacement using I/O lines

Procurement Notes

Verify the specific ordering code suffix against current Microchip documentation to confirm package type and lead finish specifications. Confirm that the 'V' designation aligns with the required 1.8V minimum operating voltage for your application design. Ensure the MLF package dimensions match your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when 4KB program memory and 256-byte data storage are sufficient for the application logic. The 10MHz speed grade provides adequate processing throughput for simple control tasks while maintaining low power characteristics. Consider the 20-pin QFN package if space constraints require a compact surface-mount solution compared to traditional DIP packages.

Part Context

This part belongs to the ATtiny45 family within the broader AVR microcontroller portfolio. It shares architectural similarities with the ATtiny25 and ATtiny85, differing primarily in memory capacities. The device is manufactured using high-density non-volatile memory technology compatible with standard ISP programming interfaces.

Replacement Considerations

ATtiny45V-10MU

FAQ

What is the function of the 'V' suffix in the part number?

The 'V' indicates that the device supports a lower supply voltage range starting from 1.8V, whereas non-'V' variants typically start at 2.7V.

How does the USI module support communication protocols?

The Universal Serial Interface (USI) can be configured to operate in SPI or TWI (I2C compatible) modes, allowing flexible serial communication without dedicated hardware peripherals.