ATTINY45-15ST

Overview

The ATTINY45-15ST is an 8-bit AVR microcontroller from Microchip Technology, featuring a high-performance RISC CPU. It integrates 4KB of in-system programmable Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM. The device operates at clock frequencies up to 15 MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include a 4-channel 10-bit ADC, a programmable Watchdog Timer, and a single-cycle hardware multiplier.

Feature Summary

• Supports in-system programming via SPI interface for flexible firmware updates.
• Integrates a 10-bit analog-to-digital converter for signal processing.
• Features low-power operation modes including idle and power-down states.

Applications

• Battery-powered sensor nodes
• Simple motor control systems
• Consumer electronics logic controllers

Procurement Notes

Verify the specific suffix 'ST' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints and programming interfaces before procurement.

Selection Notes

Select this component when 4KB program memory and a 15 MHz operating speed are required. Consider the 1.8V to 5.5V voltage range for versatile power supply designs.

Part Context

This part belongs to the ATtiny family of 8-bit AVR microcontrollers. It shares architectural similarities with the ATtiny25 and ATtiny85 but offers increased storage capacity. The series is designed for cost-sensitive embedded applications requiring efficient code execution.

Replacement Considerations

Check for direct pin-compatible alternatives within the ATtiny series, such as the ATTINY45-20SU or ATTINY45-10PU, ensuring voltage and frequency ratings meet system requirements.