ATtiny13

Table of Contents

Features.................................................................................................

1

Pin Configurations................................................................................

1

Disclaimer .............................................................................................................

1

Overview ................................................................................................

2

Block Diagram ......................................................................................................

2

Pin Descriptions....................................................................................................

3

About Code Examples..........................................................................

3

AVR CPU Core ......................................................................................

4

Introduction ...........................................................................................................

4

Architectural Overview..........................................................................................

4

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

5

Status Register .....................................................................................................

6

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

7

Stack Pointer ........................................................................................................

8

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

9

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

9

AVR ATtiny13 Memories ....................................................................

12

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

12

SRAM Data Memory...........................................................................................

13

EEPROM Data Memory......................................................................................

14

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

19

System Clock and Clock Options .....................................................

20

Clock Systems and their Distribution ..................................................................

20

Clock Sources.....................................................................................................

21

Default Clock Source ..........................................................................................

21

Calibrated Internal RC Oscillator ........................................................................

22

External Clock.....................................................................................................

23

128 kHz Internal Oscillator..................................................................................

24

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

24

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

26

Idle Mode ............................................................................................................

27

ADC Noise Reduction Mode...............................................................................

27

Power-down Mode..............................................................................................

27

Minimizing Power Consumption .........................................................................

28

System Control and Reset .................................................................

29

Internal Voltage Reference .................................................................................

34

Watchdog Timer .................................................................................................

35

Timed Sequences for Changing the Configuration of the Watchdog Timer .......

39

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ATtiny13

Memory Programming........................................................................

99

Program And Data Memory Lock Bits ................................................................

99

Fuse Bytes........................................................................................................

100

Signature Bytes ................................................................................................

101

Calibration Byte ................................................................................................

101

Page Size .........................................................................................................

101

Serial Downloading...........................................................................................

102

High-voltage Serial Programming.....................................................................

106

High-voltage Serial Programming Algorithm.....................................................

108

High-voltage Serial Programming Characteristics ............................................

113

Electrical Characteristics .................................................................

114

Absolute Maximum Ratings*.............................................................................

114

External Clock Drive Waveforms ......................................................................

115

External Clock Drive .........................................................................................

115

ADC Characteristics – Preliminary Data...........................................................

116

ATtiny13 Typical Characteristics – Preliminary Data ....................

117

Register Summary ............................................................................

135

Instruction Set Summary .................................................................

137

Ordering Information ........................................................................

139

Packaging Information .....................................................................

140

8P3 ...................................................................................................................

140

8S2 ...................................................................................................................

141

Erratas ...............................................................................................

142

ATtiny13

Rev. A.........................................................................................................................

142

Table of Contents ..................................................................................

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