PB5/RESET 8bit microcontroller Attiny Vcc Gnd one of the most popular processors for hobbyists

Flash 1k/8k Calibrated internal oscilator Power supply Reset Watchdog timer Timing and control 2.5-5.5V

Oscilators central procesor unit (CPU) Interupt unit Programing logic Timer/ counter 0

Program memory addr Program counter

o c t o p u s e n g i n e . o r g Timer/ Memory counter 1 SRAM Stack pointer 64/512B 32 General purpose Instruction register registers

Memory silicon chip EEPROM 64/512B simple logic gate Instruction decoder Arithmetic logic unit (ALU)

Status register

8-bit data bus

control lines

Serial peripheral interface

Data register Direction register USART one transistor Analog comparator SPI / I2C A/D Converter (ADC) PORT B drivers

These chips have a modified Harvard architecture PB0 PB1 PB2 PB3 PB4 8-bit RISC processor core. The smallest in their Attiny13 Attiny85 Attiny1614 AVR family of microcontrollers are the ATtiny year 2003 2005 2018 series (8-bit core and fewer features, fewer flash 1kB 8kB 16kB I/O pins, and less memory than other AVR series). sRAM 64B 256B 2kB More than 10.000 transistors. EEPROM 64B 256B 256B timers 8/16 1/0 2/0 1/3 UART/I2C n/n y/y y/y

A microprocessor is a computer processor that incorporates the Attiny85: The high-performance, low-power Microchip 8-bit AVR functions of a central processing unit on a single integrated circuit. RISC-based microcontroller combines 8KB ISP flash memory, 512B History: EEPROM, 512-Byte SRAM, 6 general purpose I/O lines, 32 general 1960 - CPU (MOS LSI chips - a few hundred transistors) purpose working registers, one 8-bit timer/counter with compare o c t o p u s e n g i n e 1969 - Four-Phase Systems (acquired by Motorola in 1981) modes, one 8-bit high speed timer/counter, USI, internal and 1970 - electronics calculators external Interrupts, 4-channel 10-bit A/D converter, programmable electronics 1971 - Intel 4004 (2300 transistors) watchdog timer with internal oscillator, three software selectable mechatronic A microcontroller (MCU for microcontroller) is a small computer with power saving modes, and debugWIRE for on-chip debugging. The internet of things simple peripherals on a single integrated circuit. device achieves a throughput of 20 MIPS at 20 MHz and operates virtual/augmented reality 1977 - Intel 8048 between 2.7-5.5 volts. 1993 - Microchip PIC16x84, Atmel (NOR flash memory) artificial inteligence Šíøeno pod licencí CC BY-SA (c) 2017-2018 ing. Jan Copák > https://www.octopuslab.cz/download/2018-attiny-a3.pdf