ATtiny5 datasheet(163/168 Pages) ATMEL

163 / 168 page

8127C–AVR–10/09

ATtiny4/5/9/10

Table of Contents

Features ..................................................................................................... 1

Pin Configurations ................................................................................... 2

1.1

Pin Description ..................................................................................................2

Overview ................................................................................................... 3

2.1

Comparison of ATtiny4, ATtiny5, ATtiny9 and ATtiny10 ...................................4

General Information ................................................................................. 5

3.1

Resources .........................................................................................................5

3.2

Code Examples .................................................................................................5

3.3

Data Retention ...................................................................................................5

3.4

Disclaimer ..........................................................................................................5

4CPU Core .................................................................................................. 6

4.1

Architectural Overview .......................................................................................6

4.2

ALU – Arithmetic Logic Unit ...............................................................................7

4.3

Status Register ..................................................................................................7

4.4

General Purpose Register File ..........................................................................8

4.5

Stack Pointer .....................................................................................................9

4.6

Instruction Execution Timing .............................................................................9

4.7

Reset and Interrupt Handling ...........................................................................10

4.8

Memories ................................................................................................ 14

5.1

In-System Re-programmable Flash Program Memory ....................................14

5.2

Data Memory ...................................................................................................14

5.3

I/O Memory ......................................................................................................16

Clock System ......................................................................................... 17

6.1

Clock Subsystems ...........................................................................................17

6.2

Clock Sources .................................................................................................18

6.3

System Clock Prescaler ..................................................................................19

6.4

Starting ............................................................................................................20

6.5

Power Management and Sleep Modes ................................................. 23

7.1

Sleep Modes ....................................................................................................23

7.2

Power Reduction Register ...............................................................................24

ATtiny5 Scheda tecnica(PDF) 163 Page - ATMEL Corporation

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