ATtiny214/414/814
AVR Microcontroller with Core Independent Peripherals
and picoPower Technology
Introduction
The ATtiny214/414/814 microcontrollers are using the high-performance low-power AVR RISC
architecture, and is capable of running at up to 20MHz, with up to 2/4/8KB Flash, 128/256/512bytes of
SRAM and 64/128bytes of EEPROM in a 14- pin package. The series uses the latest technologies with a
flexible and low power architecture including Event System and SleepWalking, accurate analog features
and advanced peripherals. Capacitive touch interfaces with driven shield are supported with the
integrated QTouch peripheral touch controller.
Features
CPU
AVR 8-bit CPU
Running at up to 20MHz
Single Cycle I/O Access
Two-level Interrupt Controller
Two-cycle Hardware Multiplier
Memories
2/4/8KB In-system self-programmable Flash Memory
64/128B EEPROM
128/256/512B SRAM
System
Power-on Reset (POR)
Brown-out Detection (BOD)
Clock Options:
16/20MHz 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 Immediate Wake Up Time
Standby
Configurable Operation of Selected Peripherals
SleepWalking Peripherals
Power Down with Wake-up Functionality
Datasheet Preliminary DS40001912A-page 1
2017 Microchip Technology Inc. ATtiny214/414/814
Peripherals
6-channel Event System
One 16-bit Timer/Counter Type A with Dedicated Period Register, 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 External Crystal or Internal RC Oscillator
One USART with Fractional Baud Rate Generator, Auto-baud, and Start-of-frame Detection
Master/Slave Serial Peripheral Interface (SPI)
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 Low Propagation Delay
10-bit 115ksps Analog to Digital Converter (ADC)
8-bit Digital to Analog Converter (DAC)
Five Selectable Internal Voltage References: 0.55V, 1.1V, 1.5V, 2.5V and 4.3V
Automated CRC Memory Scan
Watchdog Timer (WDT) with Window Mode, with Separate On-chip Oscillator
(1)
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 Interrupt on All General Purpose Pins
I/O and Packages:
12 Programmable I/O Lines
14-pin SOIC150
Temperature Ranges:
-40C to 105C
-40C to 125C Temperature Graded Device Options Available
Speed Grades:
0-5MHz @ 1.8V 5.5V
0-10MHz @ 2.7V 5.5V
0-20MHz @ 4.5V 5.5V
Note:
1. Only Available in Devices with 8KB Flash.
DS40001912A-page 2
Datasheet Preliminary
2017 Microchip Technology Inc.