Description 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 Frequency 8 KB Flash 512 Bytes EEPROM 0.5 KB SRAM 120 Instructions – Most single clock cycle execution 32 General Purpose Registers 6 GPIO debugWIRE On-chip Debug System In-System Programmable via SPI Port External and Internal Interrupt Sources Low Power Idle, ADC Noise Reduction, and Power-down Modes Enhanced Power-on Reset Circuit Programmable Brown-out Detection Circuit Internal Calibrated Oscillator Peripheral Features 8-bit Timer/Counter with Prescaler and Two PWM Channels 8-bit High-Speed Timer/Counter with Separate Prescaler Universal Serial Interface (USI) with Start Condition Detector 10-bit Analogue-to-Digital Converter – 4 Channels Programmable Watchdog Timer with Separate On-chip Oscillator On-chip Analogue Comparator Specifications Attribute Value Family Name ATtiny85 Package Type PDIP Mounting Type Through Hole Pin Count 8 Device Core AVR Data Bus Width 8bit Program Memory Size 8 kB Maximum Frequency 20MHz RAM Size 512 B USB Channels 0 Number of PWM Units 1 Number of SPI Channels 1 Number of CAN Channels 0 Number of USART Channels 0 Typical Operating Supply Voltage 2.7 → 5.5 V Number of I2C Channels 1 Number of UART Channels 0 Minimum Operating Temperature -40 °C Number of ADC Units 1 ADCs 4 x 10 bit Program Memory Type Flash Height 4.826mm Number of LIN Channels 0 Width 7.112mm Pulse Width Modulation 1 (6 Channel) Dimensions 10.16 x 7.112 x 4.826mm Length 10.16mm Instruction Set Architecture RISC Maximum Operating Temperature 85 °C Number of PCI Channels 0 Maximum Number of Ethernet Channels 0 Number of Ethernet Channels 0
