Part number : ATTINY85, ATtiny85-20PU, ATtiny85V-10PU
Function : 8-bit AVR Microcontroller with 8K
Package : 8 Pin DIP, 8 Pin SOP, 20-pad QFN
Manufacturer : ATMEL, Microchip
The ATtiny25, ATtiny45, ATtiny85 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny25/45/85 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
The ATtiny25/45/85 provides the following features: 2/4/8K bytes of In-System Programmable Flash, 128/256/512 bytes EEPROM, 128/256/256 bytes SRAM, 6 general purpose I/O lines, 32 general purpose working registers, one 8-bit Timer/Counter with compare modes, one 8-bit high speed Timer/Counter, Universal Serial Interface, Internal and External Interrupts, a 4-channel, 10-bit ADC, a programmable Watchdog Timer with internal Oscillator, and three software selectable power saving modes. Idle mode stops the CPU while allowing the SRAM, Timer/Counter, ADC, Analog Comparator, and Interrupt system to continue functioning. Power-down mode saves the register contents, disabling all chip functions until the next Interrupt or Hardware Reset. ADC Noise Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching noise during ADC conversions.
Special Microcontroller Features
1. debugWIRE On-chip Debug System
2. In-System Programmable via SPI Port
3. External and Internal Interrupt Sources
4. Low Power Idle, ADC Noise Reduction, and Power-down Modes
5. Enhanced Power-on Reset Circuit
6. Programmable Brown-out Detection Circuit
Official Homepage : https://www.microchip.com/wwwproducts/en/ATtiny85