ATtiny261-ESMZ datasheet(4/227 Pages) ATMEL

Il numero della parte	ATtiny261-ESMZ

Spiegazioni elettronici	8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash

PDF	227 Pages

Scroll/Zoom	100%

Produttore elettronici	ATMEL [ATMEL Corporation]

Homepage	http://www.atmel.com

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7753C–AVR–07/09

ATtiny261/ATtiny461/ATtiny861

Overview

The ATtiny261/461/861 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced

RISC architecture. By executing powerful instructions in a single clock cycle, the

ATtiny261/461/861 achieves throughputs approaching 1 MIPS per MHz allowing the system

designer to optimize power consumption versus processing speed.

2.1

Block Diagram

Figure 2-1.

Block Diagram

The AVR core combines a rich instruction set with 32 general purpose working registers. All the

32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent

registers to be accessed in one single instruction executed in one clock cycle. The resulting

architecture is more code efficient while achieving throughputs up to ten times faster than con-

ventional CISC microcontrollers.

PORT A (8)

PORT B (8)

USI

Timer/Counter1

Timer/Counter0

A/D Conv.

Internal

Bandgap

Analog Comp.

SRAM

Flash

EEPROM

Watchdog

Oscillator

Watchdog

Timer

Oscillator

Circuits /

Clock

Generation

Power

Supervision

POR / BOD &

RESET

PROGRAM

LOGIC

debugWIRE

AGND

AREF

AVCC

PA[0..7]

PB[0..7]

RESET

XTAL[1..2]

CPU

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