ATTINY15L-1SU

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 six general-purpose I/O lines. The device operates within a voltage range of 2.7V to 5.5V and includes two 8-bit Timer/Counters, a 4-channel 10-bit ADC with differential input capability, and an internal analog comparator. It supports three software-selectable power-saving modes: Idle, ADC Noise Reduction, and Power-down.

Feature Summary

• High-performance AVR 8-bit Microcontroller with Advanced RISC Architecture
• Non-volatile Program and Data Memories including Flash and EEPROM
• Peripheral Features including Timer/Counters, PWM, and ADC
• Special Microcontroller Features such as In-System Programming and Power-saving Modes

Applications

• Battery chargers
• Lighting ballasts
• Intelligent sensor applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches design requirements. Check for obsolescence status as indicated in official documentation. Ensure environmental compliance data aligns with project specifications. Review datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement.

Selection Notes

Consider the operating voltage range and power consumption requirements when selecting this microcontroller. Evaluate the available I/O lines and peripheral features against application needs. Assess the programming lock capabilities for data security. Review the interrupt sources and reset handling options for system reliability. Compare performance metrics with alternative devices if specific timing or memory constraints exist.

Part Context

The ATtiny15L belongs to the ATtiny series of microcontrollers manufactured by Microchip Technology. It utilizes high-density non-volatile memory technology and combines a RISC 8-bit CPU with Flash on a monolithic chip. This integration provides a flexible and cost-efficient solution for embedded control applications requiring low power consumption and moderate processing speed.

Replacement Considerations

Consult official Microchip documentation for recommended replacements. Verify compatibility with existing firmware and hardware interfaces. Ensure equivalent pinout and functionality if substituting directly.

FAQ

What are the power-saving modes available in the ATtiny15L?

The ATtiny15L offers three software-selectable power-saving modes: Idle mode, which stops the CPU while allowing peripherals to function; ADC Noise Reduction mode, which stops the CPU to facilitate high-accuracy ADC measurements; and Power-down mode, which saves register contents but freezes oscillators to minimize power consumption.

How does the ATtiny15L handle interrupts?

The ATtiny15L provides eight interrupt sources, each with a separate program vector in the program memory space. Interrupts have priority levels determined by their vector address, with lower addresses having higher priority. All interrupts require the global interrupt enable bit to be set along with individual enable bits.