Microchip Technology ATtiny214 AVR® MCUs

Microchip Technology ATtiny214 AVR® MCUs are designed with core independent peripherals and picoPower® technology. These MCUs feature a flexible and low-power architecture, including SleepWalking and Event System. The ATtiny214 MCUs support capacitive touch interfaces with a driven shield via the integrated QTouch® peripheral touch controller. Microchip Technology ATtiny214 AVR® MCUs also consist of 12 programmable I/O lines, multiple speed grades, single-pin Unified Program Debug Interface (UPDI), and three sleep modes. 

The clock options of ATtiny214 MCUs include a 16MHz/20MHz low-power internal RC oscillator, 32.768kHz Ultra-Low Power (ULP) internal RC oscillator, a 32.768kHz external crystal oscillator, and an external clock input. These MCUs operate at -40°C to +105°C temperature range and are also available in -40°C to +125°C temperature graded device options.


  • CPU:
    • AVR 8-bit CPU
    • Running at up to 20MHz
    • Single-cycle I/O access
    • Two-level interrupt controller
    • Two-cycle hardware multiplier
  • Memories:
    • 2KB in-system self-programmable flash memory
    • 128B EEPROM
    • 128B SRAM
  • System:
    • Power-on Reset (POR)
    • Brown-out Detection (BOD)
    • Clock options:
      • 16MHz/20MHz low-power internal RC oscillator
      • 32.768kHz Ultra-Low-Power (ULP) internal RC oscillator
      • 32.768kHz external crystal-oscillator
      • External clock input
    • Single Pin Unified Program Debug Interface (UPDI)
    • Three sleep modes:
      • Idle with all peripherals running and mode for an immediate wake-up time
      • Standby:
        • Configurable operation of selected peripherals
        • SleepWalking peripherals
      • Power down with wake-up functionality
  • Peripherals:
    • 6-channel event system
    • One 16-bit timer/counter Type A with a dedicated period register and Three Compare Channels (TCA)
    • One 16-bit timer/counter Type B with input capture (TCB)
    • One 12-bit timer/counter Type D optimized for control applications (TCD)
    • One 16-bit Real Time Counter (RTC) running from an external crystal or internal RC oscillator
    • One USART with fractional baud rate generator, auto-baud, and start-of-frame detection
    • Master/Slave TWI with dual address match:
      • Standard mode (Sm, 100kHz)
      • Fast mode (Fm, 400kHz)
      • Fast mode plus (Fm+, 1MHz)
    • Configurable Custom Logic (CCL) with two programmable Lookup Tables (LUT)
    • Analog Comparator (AC) with a low propagation delay
    • 10-bit 115ksps Analog-to-Digital Converter (ADC)
    • 8-bit Digital-to-Analog Converter (DAC)
    • Automated CRC memory scan
    • Watchdog Timer (WDT) with Window mode with a separate on-chip oscillator
    • Peripheral Touch Controller (PTC):
      • Capacitive touch buttons, sliders, and wheels
      • Wake-up on touch
      • Driven shield for improved moisture and noise handling performance
      • Six self-capacitance and nine mutual-capacitance channels
    • External interrupts on all general-purpose pins
  • I/O packages:
    • 12 programmable I/O lines
    • 14-pin SOIC150
  • Temperature ranges:
    • -40°C to +105°C
    • -40°C to +125°C temperature graded device options available
  • Speed grades:
    • 0 to 5MHz @ 1.8V to 5.5V

Block Diagram

Block Diagram - Microchip Technology ATtiny214 AVR® MCUs
Publicado: 2019-03-15 | Atualizado: 2023-05-23