Atmel ATtiny85 20MHz

AtmelSKU: 104077
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This is the famous Atmel ATtiny85 microcontroller, specifically the 20MHz Attiny85-20PU. This is a popular AVR microcontroller based on RISC architecture, and packs a decent set of functions despite its size and low number of pins.

Check out the SparkFun Tiny AVR Programmer for using with this IC.


  • Atmel 8-bit AVR RISC-based microcontroller
  • 8KB ISP flash memory
  • 512B EEPROM
  • 512-Byte SRAM
  • 6x general-purpose I/O lines
  • 32x general purpose working registers
  • 1x 8-bit timer/counter with compare modes
  • 1x 8-bit high speed timer/counter
  • USI
  • Internal and external Interrupts
  • 4-channel 10-bit A/D converter
  • Programmable watchdog timer with internal oscillator
  • 3x Software selectable power saving modes
  • DebugWIRE for on-chip debugging
  • Achieves a throughput of 20 MIPS at 20 MHz and operates between 2.7-5.5 volts.


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