ATtiny3217/ATtiny1617

8-bit tinyAVR

1-Series Microcontroller

Introduction

The ATtiny3217/ATtiny1617 are members of the tinyAVR

1-series of microcontrollers, using the

AVR

bit processor with hardware multiplier, running at up to 20 MHz and with 16 KB or 32 KB Flash, 2 KB of

SRAM, and 256 bytes of EEPROM in a 24-pin package. The tinyAVR 1-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 proximity sensing

and driven shield are supported with the integrated QTouch

peripheral touch controller.

Features

• CPU:

–

AVR

8-bit CPU

– Running at up to 20 MHz

– Single-cycle I/O access

– Two-level interrupt controller

– Two-cycle hardware multiplier

• Memories:

– 32/16 KB In-system self-programmable Flash memory

– 256 bytes EEPROM

– 2 KB SRAM

– Write/erase endurance:

• Flash 10,000 cycles

• EEPROM 100,000 cycles

– Data retention: 20 years at 85°C

• System:

– Power-on Reset (POR)

– Brown-out Detection (BOD)

– Internal and external clock options:

• 16/20 MHz low-power RC oscillator

• 32.768 kHz Ultra Low-Power (ULP) internal RC oscillator with ±10% accuracy, ±2%

calibration step size

• 32.768 kHz external crystal oscillator

• External clock input

– Single pin programming and debugging interface (UPDI)

– Three Sleep modes:

• Idle with all peripherals running for immediate wake-up

echnology Inc.

Datasheet Preliminary

40001999B-page 1

• Standby

– Configurable operation of selected peripherals

– SleepWalking peripherals

• Power-down with limited wake-up functionality

• Peripherals:

– One 16-bit timer/counter type A with dedicated period register, three compare channels (TCA)

– Two 16-bit timer/counter type B with input capture (TCB)

– One 12-bit timer/counter type D optimized for control applications (TCD)

– 16-bit Real-Time Counter (RTC) running from an external crystal, external clock, 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 I

C with dual address match

• Standard mode (Sm, 100 kHz)

• Fast mode (Fm, 400 kHz)

• Fast mode plus (Fm+, 1 MHz)

– Configurable Custom Logic (CCL) with two programmable Look-up Tables (LUT)

– Three Analog Comparators (AC) with low propagation delay

– Two 10-bit 115 ksps Analog-to-Digital Converters (ADC)

– Three 8-bit Digital-to-Analog Converters (DAC) with one external channel

– Five selectable internal voltage references: 0.55V, 1.1V, 1.5V, 2.5V, and 4.3V

– Automated CRC memory scan

– Window Watchdog Timer (WDT) with 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

• Up to 14 self-capacitance and up to 49 mutual capacitance channels

– External interrupt on all general purpose pins

• I/O and Packages:

– 22 programmable I/O lines

– 24-pin QFN 4 mm x 4 mm

• Temperature Ranges:

– -40°C to 105°C

– -40°C to 125°C

• Speed Grades:

– 0-5 MHz @ 1.8V – 5.5V

– 0-10 MHz @ 2.7V – 5.5V

– 0-20 MHz @ 4.5V – 5.5V

ATtiny3217/ATtiny1617

Datasheet Preliminary

40001999B-page 2