ATtiny85-20PU 8-bit AVR Microcontroller, 20MHz, 8-pin DIP
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Prices updated: 13 Oct 2026
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About this product
The ATtiny85 is an 8-bit AVR RISC microcontroller in an 8-pin DIP package. It includes flash, SRAM and EEPROM memory, a 10-bit ADC and six I/O pins (PB0 to PB5), with timers, PWM, SPI and I2C support. It is popular for small embedded projects.
Specifications
- Flash memory
- 8 KB / 8 كيلوبايت
- SRAM
- 512 bytes / 512 بايت
- EEPROM
- 512 bytes / 512 بايت
- I/O pins
- 6 (PB0 to PB5) / 6 (من PB0 إلى PB5)
- ADC
- 10-bit / 10 بت
- Maximum clock
- 20 MHz / 20 ميجاهرتز
- Operating voltage
- 2.7 V to 5.5 V (20 MHz needs 4.5 V or higher) / 2.7 إلى 5.5 فولت (التشغيل بسرعة 20 ميجاهرتز يتطلب 4.5 فولت أو أكثر)
- Package
- 8-pin PDIP / PDIP ذات 8 أطراف
Frequently asked questions
How do I program the ATtiny85?
Use an ISP programmer or an Arduino Uno loaded with ArduinoISP. Connect MOSI, MISO, SCK, RESET, VCC and GND, then select an ATtiny core in the Arduino IDE.
What supply voltage should I use at 20 MHz?
The part runs from 2.7 V to 5.5 V, but full 20 MHz operation requires 4.5 V or higher. At 2.7 V, use a lower clock speed as specified in the datasheet.
