ATtiny1614
tinyAVR
®
1-series
Introduction
The ATtiny1614 is a member of the tinyAVR
®
1-series of microcontrollers, using the AVR
®
processor with
hardware multiplier, running at up to 20 MHz, with 16 KB Flash, 2 KB of SRAM, and 256 bytes of
EEPROM in a 14-pin package. The tinyAVR
®
1-series uses the latest technologies with a flexible, low-
power architecture including Event System and SleepWalking, accurate analog features, and Core
Independent Peripherals. Capacitive touch interfaces with driven shield are supported with the integrated
QTouch
®
peripheral touch controller.
Attention: Automotive products are documented in separate data sheets.
Features
• CPU
– AVR
®
CPU
– Running at up to 20 MHz
– Single-cycle I/O access
– Two-level interrupt controller
– Two-cycle hardware multiplier
• Memories
– 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:
• 40 years at 55°C
• System
– Power-on Reset (POR)
– Brown-out Detector (BOD)
– Clock options:
• 16/20 MHz low-power internal RC oscillator
• 32.768 kHz Ultra Low-Power (ULP) internal RC oscillator
© 2019 Microchip Technology Inc.
Preliminary Datasheet
40001995B-page 1
• 32.768 kHz external crystal oscillator
• External clock input
– Single-pin Unified Program and Debug Interface (UPDI)
– Three sleep modes:
• Idle with all peripherals running for immediate wake-up
• Standby
– Configurable operation of selected peripherals
– SleepWalking peripherals
• Power-Down with full data retention
• Peripherals
– One 16-bit Timer/Counter type A (TCA) with dedicated period register and three compare
channels
– Two 16-bit Timer/Counter type B (TCB) with input capture
– One 12-bit Timer/Counter type D (TCD) optimized for control applications
– One 16-bit Real-Time Counter (RTC) running from an external crystal, external clock, or internal
RC oscillator
– Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
– One USART with fractional baud rate generator, auto-baud, and start-of-frame detection
– One master/slave Serial Peripheral Interface (SPI)
– One Two-Wire Interface (TWI) with dual address match
• Philips I
2
C compatible
• Standard mode (Sm, 100 kHz)
• Fast mode (Fm, 400 kHz)
• Fast mode plus (Fm+, 1 MHz)
�� 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
– Multiple voltage references (VREF):
• 0.55V
• 1.1V
• 1.5V
• 2.5V
• 4.3V
– Event System (EVSYS) for CPU independent and predictable inter-peripheral signaling
– Configurable Custom Logic (CCL) with two programmable look-up tables
– Automated CRC memory scan
– Peripheral Touch Controller (PTC)
• Capacitive touch buttons, sliders, wheels and 2D surfaces
• Wake-up on touch
• Driven shield for improved moisture and noise handling performance
• Up to 6 self capacitance channels
• Up to 9 mutual capacitance channels
– External interrupt on all general purpose pins
ATtiny1614
© 2019 Microchip Technology Inc.
Preliminary Datasheet
40001995B-page 2