ATTINY85-20SU Family Name, Microchip ATTINY85-20SU, 8bit AVR Microcontroller, ATtiny85, 20MHz, 8 kB Flash, 8-Pin EIAJ SOIC

ATtiny85 8-Bit tinyAVR Microcontrollers
The Atmel ATtiny85 Microcontroller is an 8-bit device based on the AVR enhanced RISC architecture. Being an Atmel tinyAVR device the ATtiny85 is packs performance and power efficiency into a small package, perfect for applications where space is at a premium. By executing powerful instructions in a single clock cycle the ATtiny85 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.
Microcontroller Features
20 MHz Max. Operating Frequency8 KB Flash512 Bytes EEPROM0.5 KB SRAM120 Instructions – Most single clock cycle execution32 General Purpose Registers6 GPIOdebugWIRE On-chip Debug SystemIn-System Programmable via SPI PortExternal and Internal Interrupt SourcesLow Power Idle, ADC Noise Reduction, and Power-down ModesEnhanced Power-on Reset CircuitProgrammable Brown-out Detection CircuitInternal Calibrated Oscillator
Peripheral Features
8-bit Timer/Counter with Prescaler and Two PWM Channels8-bit High-Speed Timer/Counter with Separate PrescalerUniversal Serial Interface (USI) with Start Condition Detector10-bit Analogue-to-Digital Converter – 4 ChannelsProgrammable Watchdog Timer with Separate On-chip OscillatorOn-chip Analogue Comparator