Overview

ATtiny20 is a low-power CMOS 8-bit microcontroller based on the compact AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny20 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features

• High performance, low power 8-bit AVR® microcontroller

• Advanced RISC architecture

• 112 powerful instructions – most single clock cycle execution

• 16 x 8 general purpose working registers

• Fully static operation

• Up to 12 MIPS throughput at 12MHz

• Non-volatile program and data memories

• 2K bytes of in-system programmable flash program memory

• 128 bytes internal SRAM

• Flash write/erase cycles: 10,000

• Data retention: 20 years at 85oC / 100 years at 25oC

• Peripheral features

• One 8-bit timer/counter with two PWM channels

• One 16-bit timer/counter with two PWM channels

• 10-bit analog to digital converter

• 8 single-ended channels

• Programmable watchdog timer with separate on-chip oscillator

• On-chip analog comparator

• Master/slave SPI serial interface

• Slave TWI serial interface

• Special microcontroller features

• In-system programmable

• External and internal interrupt sources

• Low power idle, ADC noise reduction, stand-by and power-down modes

• Enhanced power-on reset circuit

• Internal calibrated oscillator

• I/O and packages

• 14-pin SOIC/TSSOP: 12 programmable I/O lines

• 12-ball WLCSP: 10 programmable I/O lines

• 15-ball UFBGA: 12 programmable I/O lines

• 20-pad VQFN: 12 programmable I/O lines

• Operating voltage:

• 1.8 – 5.5V

• Programming voltage:

• 5V

• Speed grade

• 0 – 4MHz @ 1.8 – 5.5V

• 0 – 8MHz @ 2.7 – 5.5V

• 0 – 12MHz @ 4.5 – 5.5V

• Industrial temperature range

• Low power consumption

• Active mode:

• 200 μA at 1MHz and 1.8V

• Idle mode:

• 25μA at 1MHz and 1.8V

• Power-down mode:

•