ATTINY25V-10MUR

Overview

The ATTINY25V-10MUR is an 8-bit AVR microcontroller featuring 2 KB of In-System Programmable Flash, 128 bytes of EEPROM, and 128 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 includes a 4-channel 10-bit ADC, USI for serial communication, and six programmable I/O lines. It utilizes a 20-pad QFN/MLF package (20M1) and supports industrial temperature ranges.

Feature Summary

• AVR enhanced RISC architecture executing powerful instructions in single clock cycles
• In-system programmable non-volatile memory with high endurance specifications
• Integrated analog-to-digital converter with differential channel pairs and programmable gain
• Universal Serial Interface supporting SPI and TWI protocols with start condition detection

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications within specified temperature ranges
• Sensor interface circuits utilizing the integrated ADC capabilities
• Communication nodes using USI-based serial data transfer

Procurement Notes

Verify the specific ordering suffix 'R' indicates tape and reel packaging when sourcing components. Confirm that the 'V' designation corresponds to the extended 1.8 V minimum operating voltage requirement for your design. Ensure the manufacturer documentation matches the requested speed grade and package type to avoid compatibility issues during integration.

Selection Notes

Select this component when a low-pin-count solution with integrated analog conversion is required. The 10 MHz speed grade provides sufficient processing capability for simple control tasks while maintaining energy efficiency. Consider the 20-pad QFN package for space-constrained designs where thermal dissipation via the exposed pad is necessary for operation under load.

Part Context

This microcontroller belongs to the ATtiny25/45/85 family, which shares a common core architecture and peripheral set differentiated primarily by memory sizes. The 'V' suffix denotes the low-voltage variant capable of operation down to 1.8 V. The 'MUR' suffix specifies the 20-pad QFN package with tape and reel delivery format, distinguishing it from PDIP or SOIC alternatives.

Replacement Considerations

Compatible substitutes include other members of the ATtiny25/45/85 series such as the ATTINY45V-10MUR or ATTINY85V-10MUR, provided increased memory capacity does not conflict with firmware constraints. Verify pinout compatibility and ensure the replacement part maintains the same 20-pad QFN footprint and electrical characteristics.