ATTINY25-20MUR

Overview

The ATTINY25-20MUR is an 8-bit AVR microcontroller featuring a high-performance RISC architecture with 120 instructions, most executing in a single clock cycle. It integrates 2 KB of In-System Programmable Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. The device supports a maximum clock frequency of 20 MHz at supply voltages between 4.5 V and 5.5 V, and 10 MHz from 2.7 V to 5.5 V. It includes a 10-bit ADC with four single-ended channels, two differential pairs, and a programmable Watchdog Timer.

Feature Summary

• AVR enhanced RISC architecture with 32 general-purpose working registers for efficient code execution
• In-system programmable non-volatile memory including Flash, EEPROM, and SRAM
• Integrated Universal Serial Interface (USI) supporting SPI and I2C compatible protocols
• Four-channel 10-bit Analog-to-Digital Converter with selectable gain and temperature measurement capability

Applications

• Embedded control systems requiring low power consumption
• Sensor interface applications utilizing the internal ADC
• Serial communication devices using USI or SPI interfaces
• Battery-powered portable electronics

Procurement Notes

Verify that the ordering suffix 'R' corresponds to tape and reel packaging as specified in the manufacturer's documentation. Confirm the speed grade matches the required operational frequency for the target voltage range. Ensure the industrial temperature rating aligns with environmental operating conditions. Cross-reference the package type to confirm physical footprint compatibility with the design.

Selection Notes

Select this component when a compact 8-bit solution with integrated analog conversion is required. The 20-pad QFN package offers a small form factor suitable for space-constrained designs. Consider the specific speed-grade requirements relative to the operating voltage to ensure stable performance. Evaluate the available I/O lines against peripheral connection needs.

Part Context

This device belongs to the ATtiny series of 8-bit microcontrollers manufactured by Microchip Technology. It utilizes the AVR core architecture known for balancing processing speed with power efficiency. The part is designed for embedded applications needing reliable non-volatile storage and versatile communication interfaces within a minimal pin count configuration.

Replacement Considerations

ATtiny25-20MU

FAQ

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

The 'R' suffix indicates that the device is supplied in tape and reel packaging.

How does the device handle low power operation?

It supports multiple software-selectable power-saving modes, including Idle, Power-down, and ADC Noise Reduction modes.