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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:

?