ATtiny85 Microcontroller, 8-pin DIP IC in Pakistan
The ATtiny85Â microcontroller is designed with a compact structure that combines efficient performance and power-saving capabilities. Known for its small size, this 8-bit microcontroller can manage various functions with minimal components, making it popular for both small-scale hobby projects and more demanding industrial applications. It has a program memory of 8K, allowing you to store applications efficiently while saving space. The ATTINY85 also includes multiple power-saving modes, enabling it to run efficiently on battery-operated devices. Its flexible range of input and output options further supports versatile usage, making it adaptable for a wide array of embedded system tasks. This compact, cost-effective design allows it to deliver solid performance without compromising on essential microcontroller features, offering an easy-to-use solution for developers and experimenters alike.
ATTINY85 Pin Configuration

ATTINY85 CAD Model
ATTINY85 Symbol

ATTINY85 Footprint

ATTINY85 3D Model

Details of ATTINY85 Microcontroller
Compact and Affordable
The ATTINY85 is known for its small size and affordability, making it a great choice for both hobby projects and professional applications. It provides essential features without taking up much space or stretching your budget.
Adequate Memory
With 8K of program memory, the ATTINY85 offers enough space for many applications. This allows you to store code and execute a range of tasks without needing additional components or storage.
Power-Saving Modes
The ATTINY85 includes several power-saving modes, which help reduce power consumption in battery-operated devices. These modes allow it to run efficiently, prolonging battery life for mobile or remote projects.
Flexible I/O Options
Equipped with multiple input/output options, the ATTINY85 can handle various tasks and interact with different peripherals. This flexibility makes it adaptable for many types of embedded systems.
Built-in Watchdog Timer
The ATTINY85 comes with a watchdog timer, which helps prevent the microcontroller from hanging or freezing. This feature increases reliability, especially for applications that need consistent and stable performance.
ATTINY85 Features
High Performance and Low Power
The ATTINY85 operates as a high-performance microcontroller while using low power. Its compact 8-bit AVR design allows it to handle tasks efficiently without draining much energy, making it suitable for various applications.
Advanced RISC Architecture
With its RISC architecture, the ATTINY85 can execute 120 powerful instructions, most within a single clock cycle. It includes 32 x 8 general-purpose working registers, allowing for quick and smooth operations and fully static operation.
Reliable Memory Options
The microcontroller offers 8K bytes of in-system programmable flash memory, supporting up to 10,000 write/erase cycles. It also includes 512 bytes of in-system programmable EEPROM (up to 100,000 write/erase cycles) and 512 bytes of internal SRAM, making it suitable for a variety of data storage needs.
Strong Data Protection
The ATTINY85 includes a programming lock to protect your stored data and code, adding an extra layer of data security in memory.
Versatile Peripheral Features
Equipped with an 8-bit timer/counter with a prescaler, two PWM channels, and a high-speed timer, the ATTINY85 handles timing and pulse-width modulation tasks smoothly. It also supports a universal serial interface (USI) with a start condition detector and has a 10-bit ADC for handling analog signals.
Enhanced ADC Options
The 10-bit ADC offers four single-ended channels and two differential pairs with programmable gain, making it suitable for analog signal measurement. Temperature measurement is also possible, adding flexibility to its capabilities.
Built-in Watchdog Timer
The ATTINY85 includes a watchdog timer with a separate on-chip oscillator to keep it running consistently, helping prevent system errors from causing it to freeze or stall.
On-chip Analog Comparator
With an on-chip analog comparator, the ATTINY85 can quickly compare analog input signals, which is useful for applications requiring signal analysis or comparisons.
Special Microcontroller Features
The ATTINY85 offers debugWIRE for easy debugging, in-system programming via SPI port, and both external and internal interrupt sources. It also includes low-power idle modes, ADC noise reduction, and power-down modes to manage power efficiently.
Enhanced Power and Voltage Support
The enhanced power-on reset circuit and programmable brown-out detection circuit ensure reliability in varying power conditions. An internal calibrated oscillator provides stable operation without needing an external oscillator.
Programmable I/O Lines
With six programmable input/output lines, the ATTINY85 provides flexibility in how you connect it to other devices or components, allowing more versatile setups.
Wide Operating Voltage Range
Operating between 2.7 to 5.5V, the ATTINY85 can handle a variety of voltage inputs, making it compatible with different power sources.
Speed and Temperature Compatibility
The microcontroller performs efficiently across a range of speeds, reaching up to 20 MHz at higher voltages. It also operates within an industrial temperature range, from -40°C to 85°C, making it suitable for diverse environments.
Low Power Consumption
In active mode, the ATTINY85 draws just 300 µA at 1 MHz, 1.8V. In power-down mode, it reduces consumption to 0.1 µA at 1.8V, making it an excellent choice for battery-powered devices and power-sensitive applications.

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