ATTINY15L-1SC

Overview

The ATtiny15L is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. It features 1K byte of In-System Programmable Flash program memory, 64 bytes of EEPROM, and 32 general purpose working registers. The device includes two 8-bit Timer/Counters, a 4-channel 10-bit ADC with differential input capability, an analog comparator, and a programmable Watchdog Timer. Operating voltages range from 2.7V to 5.5V, with an internal calibrated 1.6 MHz oscillator. It supports SPI programming and offers three software-selectable power-saving modes.

Feature Summary

• High-performance AVR 8-bit RISC architecture executing most instructions in a single clock cycle
• Non-volatile memory including 1K byte Flash and 64 bytes EEPROM with high endurance ratings
• Integrated peripheral suite featuring 4-channel 10-bit ADC, analog comparator, and dual 8-bit timers
• Programmable Brown-out Detection and Enhanced Power-on Reset circuits for system reliability

Applications

• Battery chargers
• Lighting ballasts
• Intelligent sensor applications

Procurement Notes

Verify component status before integration as the ATtiny15L is designated Not Recommended for New Designs (NRND). Confirm package availability matches project requirements, typically 8-lead PDIP or SOIC. Review datasheet revision history for any electrical characteristic updates. Ensure development tools support the specific AVR core instruction set for successful firmware deployment.

Selection Notes

Select this component for cost-sensitive embedded control applications requiring minimal I/O and moderate processing speed. The internal 1.6 MHz oscillator reduces external crystal dependencies. Evaluate power consumption metrics against application duty cycles, noting active current draw at specified voltages. Consider the limited stack depth and interrupt vector count when designing complex firmware architectures.

Part Context

The ATtiny15L belongs to the Microchip AVR family of 8-bit microcontrollers. It utilizes high-density non-volatile memory technology manufactured by Atmel. The device is part of the legacy ATtiny series, designed for compact embedded systems. It shares architectural similarities with other AVR devices but offers a reduced pin count and memory footprint suitable for space-constrained designs.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation.