Microchip Technology ATtiny AVR 8-bit Microcontrollers

Microchip Technology ATtiny AVR® 8-bit Microcontrollers (MCUs) are optimized for applications that require performance, power efficiency, and ease of use in a small package. The ATtiny417/ATtiny814/ATtiny816/ATtiny817 MCUs offer an 8-bit AVR processor with a hardware multiplier running at up to 20MHz, with up to 8KB Flash, 512 bytes of SRAM, and 128 bytes of EEPROM in 14-pin, 20-pin, and 24-pin packages. These devices use Atmel picoPower® technology to enable a flexible and low power architecture including Event System and SleepWalking, accurate analog features, and advanced peripherals. Capacitive touch interfaces with a driven shield are supported with the integrated QTouch® peripheral touch controller.

Core Independent Peripherals (CIPs) technology allows connected peripherals to operate independently of the core and includes serial communication and analog peripherals. Together with the Event System, which allows peripherals to communicate without using the CPU, applications can be optimized at a system level. This lowers power consumption and increases throughput and system reliability.


  • 8-bit high-performance AVR RISC CPU
    • Hardware Multiplier
      • Three sleep modes
        • Idle
        • Standby
        • Power Down
    • 6 Channel Event System
    • Watchdog Timer (WDT)
    • Power-On Reset (POR)
    • Brown-Out Detection (BOD)
    • Single pin programming and debugging interface (UPDI)
  • Memory
    • 8KB Self-Programmable Flash Memory
    • 128B EEPROM
    • 512B SRAM
  • Analog Features
    • 12 Channel 10-bit ADC with voltage reference
    • 8-bit Digital to Analog Converter (DAC)
    • Comparators
  • Timing/Waveform/Measurement Control
    • Configurable Custom Logic (CCL)
    • 1x 12-bit Timers (TCD)
    • 2x 16-bit Timer (TCA / TCB)
    • Cyclical Redundancy Check (CRC/SCAN)
  • Communication
    • Peripheral Touch Controller (PTC)
    • 6 Channels self-capacitance
    • 9 Channels mutual-capacitance
    • SPI / I2C / USART
  • Packages
    • 14-pin SOIC150
    • 20-pin QFN 3x3
    • 20-pin SOIC300
    • 24-pin QFN 4x4
Published: 2016-11-15 | Updated: 2022-04-25