AT90PWM2 datasheet(354/361 Pages) ATMEL

Part #	AT90PWM2

Description	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

PDF	361 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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354 / 361 page

4317J–AVR–08/10

AT90PWM2/3/2B/3B

Table of Contents

History 2

Disclaimer 2

Pin Configurations 3

3.1

Pin Descriptions 4

Overview 6

4.1

Block Diagram 7

4.2

Pin Descriptions 8

4.3

About Code Examples 9

AVR CPU Core 10

5.1

Introduction 10

5.2

Architectural Overview 10

5.3

ALU – Arithmetic Logic Unit 11

5.4

Status Register 12

5.5

General Purpose Register File 13

5.6

Stack Pointer 14

5.7

Instruction Execution Timing 14

5.8

Reset and Interrupt Handling 15

Memories 18

6.1

In-System Reprogrammable Flash Program Memory 18

6.2

SRAM Data Memory 18

6.3

EEPROM Data Memory 20

6.4

I/O Memory 26

6.5

General Purpose I/O Registers 26

System Clock 28

7.1

Clock Systems and their Distribution 28

7.2

Clock Sources 30

7.3

Default Clock Source 31

7.4

Low Power Crystal Oscillator 31

7.5

Calibrated Internal RC Oscillator 32

7.6

PLL 34

7.7

128 kHz Internal Oscillator 36

7.8

External Clock 36

AT90PWM2 Datasheet(PDF) 354 Page - ATMEL Corporation

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