ATTINY25-20SU

Overview

The ATTINY25-20SU is an 8-bit AVR microcontroller manufactured by Microchip Technology, housed in an 8-pin SOIC package. It features a high-performance RISC architecture with 2 KB of In-System Programmable Flash memory, 128 bytes of EEPROM, and 128 bytes of internal SRAM. The device supports a maximum clock frequency of 20 MHz when operating within the 4.5V to 5.5V supply voltage range. It includes six programmable I/O lines, a 4-channel 10-bit ADC, USI communication interface, and multiple timer/counters.

Feature Summary

• Advanced RISC Architecture
• In-System Programmable Memory
• Universal Serial Interface (USI)
• Low Power Consumption

Applications

• Embedded Control Systems
• Sensor Interfaces
• Battery Powered Devices

Procurement Notes

Verify the specific speed grade and package variant against project requirements. Confirm that the 20MHz performance rating aligns with the intended operating voltage range of 4.5V to 5.5V. Ensure compatibility with existing SPI programming interfaces for firmware updates.

Selection Notes

Select this component for applications requiring efficient code execution with minimal power consumption. Consider the 20MHz speed grade only if the system operates at higher voltages. Evaluate the 8-pin SOIC footprint constraints against available PCB space and thermal management needs.

Part Context

This part belongs to the ATtiny series of 8-bit microcontrollers based on the AVR enhanced RISC architecture. It shares core functionalities with other variants like the ATtiny45 and ATtiny85, differing primarily in memory capacities and specific pin configurations.

Replacement Considerations

ATtiny45-20SU

FAQ

What is the maximum operating frequency at 5.5V?

The maximum operating frequency is 20 MHz when the supply voltage is between 4.5V and 5.5V.

Does the device support in-system programming?

Yes, the program memory can be re-programmed In-System through an SPI serial interface.