8bit AVR Microcontroller, 10MHz, 8 kB, 512 B
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The ATtiny85 Microcontroller is an 8-bit device based on the AVR enhanced RISC architecture. The ATtiny85 packs performance and power efficiency into a small package, perfect for applications where space is important. By executing powerful instructions in a single clock cycle the ATtiny85 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.


20 MHz Max. Operating Frequency
8 KB Flash
512 Bytes EEPROM
120 Instructions – Most single clock cycle execution
32 General Purpose Registers
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


Mounting Type Through Hole
Pin Count 8
Device Core AVR
Data Bus Width 8bit
Program Memory Size 8 kB, 512 B
Maximum Frequency 10MHz
RAM Size 512 B
Number of PWM Units 1
ADC Channels 4
Number of SPI Channels 1
Typical Operating Supply Voltage 1.8 to 5.5 V
PWM Resolution 8bit
Minimum Operating Temperature -40 °C
Number of UART Channels 1
Program Memory Type Flash
Dimensions 0.4 x 0.28 x 0.195in
Timers 2 x 8 bit
Height 4.95mm
Pulse Width Modulation 6 x 8 bit
Width 0.28in
PWM Channels 6
ADCs 4 x 10 bit
Length 10.16mm
Maximum Operating Temperature +85 °C
Number of ADC Units 1
Instruction Set Architecture RISC
ADC Resolution 10bit
Number of I2C Channels 1
Number of Timers 2
Timer Resolution 8bi


ATtiny85 Datasheet


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