ATTINY85-15ST1

Overview

The ATTINY85-15ST1 is an 8-bit AVR microcontroller manufactured by Microchip Technology. It features a RISC-based CPU core with 8 KB of in-system programmable Flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM. The device supports a maximum clock frequency of 15 MHz and operates within a supply voltage range of 2.7 V to 5.5 V. It includes a 10-bit ADC, six general-purpose I/O lines, and multiple timer/counters. The component is housed in a TSSOP-8 package and is designed for low-power applications across industrial temperature ranges.

Feature Summary

• Integrates 8 KB of non-volatile Flash program memory with in-system programming capability.
• Includes a 10-bit analog-to-digital converter for sensor interfacing.
• Features a watchdog timer for system reset and stability management.
• Supports serial programming and high-tensile-strength packaging.

Applications

• Battery-powered consumer devices requiring low power consumption
• Sensor interface modules utilizing the internal ADC
• Simple control loops in home automation systems

Procurement Notes

Verify the specific suffix 'ST1' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with standard 8-pin TSSOP footprints during PCB layout. Confirm RoHS compliance status through current datasheets before procurement.

Selection Notes

Select this model when 8 KB of Flash and a 10-bit ADC are required in an 8-pin form factor. Consider the 15 MHz speed limit and 2.7 V minimum operating voltage for power-constrained designs. Compare against ATTINY85 variants with different speed grades or package options if higher performance or alternative mounting styles are needed.

Part Context

This part belongs to the ATtiny85 family of 8-bit AVR microcontrollers. It shares architectural similarities with other members like the ATTINY84 and ATTINY861 but offers a distinct pin count and peripheral set optimized for compact applications. The series is known for its efficiency and ease of use with development tools.

Replacement Considerations

Direct substitutes include ATTINY85-20SU or ATTINY85-10MU depending on speed and package requirements. Verify electrical characteristics and pinout compatibility before replacing.