
- •Features
- •Pin Configurations
- •Disclaimer
- •Overview
- •Block Diagram
- •Pin Descriptions
- •Port B (PB5..PB0)
- •RESET
- •AVR CPU Core
- •Introduction
- •Architectural Overview
- •Status Register
- •Stack Pointer
- •Interrupt Response Time
- •SRAM Data Memory
- •Data Memory Access Times
- •EEPROM Data Memory
- •EEPROM Read/Write Access
- •Atomic Byte Programming
- •Split Byte Programming
- •Erase
- •Write
- •I/O Memory
- •Clock Systems and their Distribution
- •CPU Clock – clkCPU
- •I/O Clock – clkI/O
- •Flash Clock – clkFLASH
- •ADC Clock – clkADC
- •Clock Sources
- •Default Clock Source
- •External Clock
- •System Clock Prescaler
- •Switching Time
- •Idle Mode
- •Power-down Mode
- •Analog to Digital Converter
- •Analog Comparator
- •Brown-out Detector
- •Internal Voltage Reference
- •Watchdog Timer
- •Port Pins
- •Resetting the AVR
- •Reset Sources
- •Power-on Reset
- •External Reset
- •Brown-out Detection
- •Watchdog Reset
- •Watchdog Timer
- •Timed Sequences for Changing the Configuration of the Watchdog Timer
- •Safety Level 1
- •Safety Level 2
- •Interrupts
- •I/O Ports
- •Introduction
- •Configuring the Pin
- •Toggling the Pin
- •Reading the Pin Value
- •Unconnected Pins
- •Alternate Port Functions
- •Alternate Functions of Port B
- •Register Description for I/O-Ports
- •Port B Data Register – PORTB
- •External Interrupts
- •8-bit Timer/Counter0 with PWM
- •Overview
- •Registers
- •Definitions
- •Counter Unit
- •Output Compare Unit
- •Force Output Compare
- •Modes of Operation
- •Normal Mode
- •Fast PWM Mode
- •Phase Correct PWM Mode
- •Prescaler Reset
- •External Clock Source
- •Analog Comparator
- •Analog Comparator Multiplexed Input
- •Features
- •Operation
- •Starting a Conversion
- •Changing Channel or Reference Selection
- •ADC Input Channels
- •ADC Voltage Reference
- •ADC Noise Canceler
- •Analog Input Circuitry
- •ADC Accuracy Definitions
- •ADC Conversion Result
- •ADLAR = 0
- •ADLAR = 1
- •debugWIRE On-chip Debug System
- •Features
- •Overview
- •Physical Interface
- •Software Break Points
- •Limitations of debugWIRE
- •debugWIRE Related Register in I/O Memory
- •debugWire Data Register – DWDR
- •Performing a Page Write
- •Reading the Fuse and Lock Bits from Software
- •Preventing Flash Corruption
- •Fuse Bytes
- •Latching of Fuses
- •Signature Bytes
- •Calibration Byte
- •Page Size
- •Serial Downloading
- •Data Polling Flash
- •Data Polling EEPROM
- •Chip Erase
- •Programming the Flash
- •Programming the EEPROM
- •Reading the Flash
- •Reading the EEPROM
- •Power-off sequence
- •Electrical Characteristics
- •Absolute Maximum Ratings*
- •External Clock Drive Waveforms
- •External Clock Drive
- •ADC Characteristics – Preliminary Data
- •Active Supply Current
- •Idle Supply Current
- •Power-down Supply Current
- •Pin Pull-up
- •Register Summary
- •Instruction Set Summary
- •Ordering Information
- •Packaging Information
- •Erratas
- •Table of Contents

ATtiny13
Figure 65 . Active Supply Current vs. VC C (Internal RC Oscillator, CKDIV8
Programmed, 1.2 MHz)
ACTIVE SUPPLY CURRENT vs. VCC
INTERNAL RC OSCILLATOR, CKDIV8 PROGRAMMED, 1.2 MHz
2.5 |
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2 |
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85°C |
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25°C |
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-40°C |
1.5 |
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(mA) |
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CC |
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I |
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1 |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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Idle Supply Current |
Figure 66. Idle Supply Current vs. Frequency (0.1 - 1.0 MHz) |
IDLE SUPPLY CURRENT vs. FREQUENCY
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0.1 - 1.0 MHz |
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0.4 |
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5.5V |
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0.3 |
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5.0V |
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4.5V |
(mA) |
0.2 |
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4.0V |
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CC |
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3.3V |
I |
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2.7V |
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0.1 |
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1.8V |
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0 |
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0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
1 |
Frequency (MHz)
119
2535A–AVR–06/03

Figure 67. Idle Supply Current vs. Frequency (1 - 20 MHz)
IDLE SUPPLY CURRENT vs. FREQUENCY
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1 - 20 MHz |
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8 |
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7 |
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5.5V |
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6 |
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5.0V |
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5 |
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4.5V |
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(mA) |
4 |
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4.0V |
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CC |
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I |
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3 |
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2 |
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3.3V |
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1 |
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2.7V |
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0 |
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1.8V |
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0 |
2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
Frequency (MHz)
Figure 68. Idle Supply Current vs. VCC (Internal RC Oscillator, 9.6 MHz)
IDLE SUPPLY CURRENT vs. VCC
INTERNAL RC OSCILLATOR, 9.6 MHz
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3.5 |
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3.0 |
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85°C |
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25°C |
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2.5 |
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-40°C |
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(mA) |
2.0 |
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CC |
1.5 |
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I |
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1.0 |
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0.5 |
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0.0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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120 ATtiny13
2535A–AVR–06/03

ATtiny13
Figure 69. Idle Supply Current vs. VCC (Internal RC Oscillator, CKDIV8 Programmed, 1.2 MHz)
IDLE SUPPLY CURRENT vs. VCC
INTERNAL RC OSCILLATOR, CKDIV8 PROGRAMMED, 1.2 MHz
0.5 |
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85°C |
0.4 |
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25°C |
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-40°C |
0.3 |
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(mA) |
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CC |
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I |
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0.2 |
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0.1 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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Power-down Supply Current |
Figure 70. Power-down Supply Current vs. VCC (Watchdog Timer Disabled) |
POWER-DOWN SUPPLY CURRENT vs. VCC
WATCHDOG TIMER DISABLED
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3.5 |
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3 |
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85°C |
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2.5 |
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(uA) |
2 |
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-40°C |
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CC |
1.5 |
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25°C |
I |
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1 |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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121
2535A–AVR–06/03

Figure 71. Power-down Supply Current vs. VCC (Watchdog Timer Enabled)
POWER-DOWN SUPPLY CURRENT vs. VCC
WATCHDOG TIMER ENABLED
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10 |
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9 |
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85°C |
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8 |
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-40°C |
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25°C |
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7 |
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6 |
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(uA) |
5 |
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CC |
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I |
4 |
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3 |
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2 |
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1 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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Pin Pull-up |
Figure 72. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 5V) |
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
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Vcc = 5V |
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160 |
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85°C |
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140 |
25°C |
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120 |
-40°C |
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100 |
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(uA) |
80 |
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IO |
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I |
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60 |
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40 |
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20 |
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0 |
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0 |
1 |
2 |
3 |
4 |
5 |
6 |
VIO (V)
122 ATtiny13
2535A–AVR–06/03

ATtiny13
Figure 73. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 2.7V)
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
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Vcc = 2.7V |
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90 |
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80 |
25°C |
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85°C |
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70 |
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60 |
-40°C |
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(uA) |
50 |
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IO |
40 |
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I |
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30 |
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20 |
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10 |
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0 |
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0 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
VIO (V)
Figure 74. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 1.8V)
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
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Vcc = 1.8V |
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60 |
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50 |
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85°C |
25°C |
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40 |
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(uA) |
30 |
-40°C |
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OP |
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I |
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20 |
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10 |
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0 |
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0 |
0.2 |
0.4 |
0.6 |
0.8 |
1 |
1.2 |
1.4 |
1.6 |
1.8 |
2 |
VOP (V)
123
2535A–AVR–06/03

Figure 75. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 5V)
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGE
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Vcc = 5V |
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120 |
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-40°C |
25°C |
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100 |
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80 |
85°C |
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(uA) |
60 |
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RESET |
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I |
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40 |
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20 |
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0 |
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0 |
1 |
2 |
3 |
4 |
5 |
6 |
VRESET (V)
Figure 76. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 2.7V)
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGE
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Vcc = 2.7V |
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70 |
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60 |
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-40°C |
25°C |
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50 |
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(uA) |
40 |
85°C |
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RESET |
30 |
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I |
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20 |
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10 |
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0 |
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0 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
VRESET (V)
124 ATtiny13
2535A–AVR–06/03

ATtiny13
Figure 77. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 1.8V)
RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGE
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Vcc = 1.8V |
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40 |
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-40°C |
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35 |
25°C |
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30 |
85°C |
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(uA) |
25 |
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20 |
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RESET |
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I |
15 |
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10 |
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5 |
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0 |
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0 |
0.2 |
0.4 |
0.6 |
0.8 |
1 |
1.2 |
1.4 |
1.6 |
1.8 |
2 |
VRESET (V)
Pin Thresholds and hysteresis Figure 78. I/O Pin Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as “1”)
I/O PIN INPUT THRESHOLD VOLTAGE vs. VCC
VIH, I/O PIN READ AS '1'
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3 |
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85°C |
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25°C |
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2.5 |
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-40°C |
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2 |
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(V) |
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Threshold |
1.5 |
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1 |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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125
2535A–AVR–06/03

Figure 79. I/O Pin Input Threshold Voltage vs. VCC (VIL, I/O Pin Read as “0”)
I/O PIN INPUT THRESHOLD VOLTAGE vs. VCC
VIL, I/O PIN READ AS '0'
|
3 |
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2.5 |
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85°C |
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25°C |
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-40°C |
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2 |
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(V) |
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Threshold |
1.5 |
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1 |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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Figure 80. I/O Pin Input Hysteresis vs. VCC
I/O PIN INPUT HYSTERESIS vs. VCC
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0.6 |
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-40°C |
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0.5 |
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25°C |
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0.4 |
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(V) |
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85°C |
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Threshold |
0.3 |
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0.2 |
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0.1 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
126 ATtiny13
2535A–AVR–06/03

ATtiny13
Figure 81. Reset Input Threshold Voltage vs. VCC (VIH,Reset Pin Read as “1”)
RESET INPUT THRESHOLD VOLTAGE vs. VCC
VIH, RESET PIN READ AS '1'
|
2.5 |
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2 |
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(V) |
1.5 |
-40°C |
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Threshold |
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25°C |
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1 |
85°C |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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Figure 82. Reset Input Threshold Voltage vs. VCC (VIL,Reset Pin Read as “0”)
RESET INPUT THRESHOLD VOLTAGE vs. VCC
VIL, RESET PIN READ AS '0'
|
2.5 |
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85°C |
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25°C |
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-40°C |
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2 |
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Threshold (V) |
1.5 |
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1 |
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0.5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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127
2535A–AVR–06/03

BOD Thresholds and Analog Figure 83. BOD Thresholds vs. Temperature (BOD Level is 4.3V)
Comparator Offset
Threshold (V)
BOD THRESHOLDS vs. TEMPERATURE
BODLEVEL IS 4.3V
4.6
4.5
Rising VCC
4.4
Falling VCC
4.3
4.2
4.1
4
-50 |
-40 |
-30 |
-20 |
-10 |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
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Temperature (˚C) |
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Figure 84. BOD Thresholds vs. Temperature (BOD Level is 2.7V)
Threshold (V)
BOD THRESHOLDS vs. TEMPERATURE
BODLEVEL IS 2.7V
3
2.9
Rising VCC
2.8
Falling VCC
2.7
2.6
2.5
2.4
-50 |
-40 |
-30 |
-20 |
-10 |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
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Temperature (˚C) |
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128 ATtiny13
2535A–AVR–06/03

ATtiny13
Figure 85. BOD Thresholds vs. Temperature (BOD Level is 1.8V)
BOD THRESHOLDS vs. TEMPERATURE
Threshold (V)
BODLEVEL IS 1.8V
2.1
2
1.9 Rising VCC
1.8
Falling VCC
1.7
1.6
1.5
-50 |
-40 |
-30 -20 |
-10 |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
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Temperature (˚C) |
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Figure 86. Bandgap Voltage vs. VCC
BANDGAP VOLTAGE vs. VCC
|
1.14 |
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1.13 |
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(V) |
1.12 |
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Voltage |
1.11 |
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85°C |
Bandgap |
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25°C |
1.1 |
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-40°C |
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1.09 |
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1.08 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
Vcc (V)
129
2535A–AVR–06/03

Figure 87. Analog Comparator Offset Voltage vs. Common Mode Voltage (VCC = 5V)
ANALOG COMPARATOR OFFSET VOLTAGE vs. COMMON MODE VOLTAGE
|
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VCC = 5V |
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0.008 |
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85°C |
(V) |
0.006 |
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25°C |
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-40°C |
|
Voltage |
0.004 |
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Offset |
0.002 |
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Comparator |
0 |
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-0.002 |
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-0.004 |
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0 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
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Common Mode Voltage (V) |
|
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Figure 88. Analog Comparator Offset Voltage vs. Common Mode Voltage (VCC = 2.7V)
ANALOG COMPARATOR OFFSET VOLTAGE vs. COMMON MODE VOLTAGE
|
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VCC = 2.7V |
|
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0.003 |
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85°C |
|
0.002 |
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25°C |
(V) |
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Voltage |
0.001 |
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-40°C |
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0 |
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Offset |
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-0.001 |
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Comparator |
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-0.002 |
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-0.003 |
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-0.004 |
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0 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
Common Mode Voltage (V)
130 ATtiny13
2535A–AVR–06/03

ATtiny13
Current Consumption of
Peripheral Units
Figure 89. Brownout Detector Current vs. VCC
BROWNOUT DETECTOR CURRENT vs. VCC
|
30 |
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25 |
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-40°C |
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85°C |
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25°C |
|
20 |
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(mA) |
15 |
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CC |
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I |
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10 |
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5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
Figure 90. ADC Current vs. VCC (AREF = AVCC)
ADC CURRENT vs. VCC
AREF = AVCC
|
350 |
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-40°C |
|
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300 |
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25°C |
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85°C |
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250 |
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(uA) |
200 |
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CC |
150 |
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I |
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100 |
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50 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
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VCC (V) |
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131
2535A–AVR–06/03

Figure 91. AREF External Reference Current vs. VCC
AREF EXTERNAL REFERENCE CURRENT vs. VCC
|
160 |
|
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85°C |
|
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25°C |
|
140 |
|
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-40°C |
|
120 |
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100 |
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(uA) |
80 |
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AREF |
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I |
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60 |
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40 |
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20 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
Figure 92. Analog Comparator Current vs. VCC
ANALOG COMPARATOR CURRENT vs. VCC
|
120 |
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100 |
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-40°C |
|
80 |
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25°C |
|
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85°C |
|
(uA) |
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60 |
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CC |
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I |
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40 |
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20 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
132 ATtiny13
2535A–AVR–06/03

ATtiny13
Current Consumption in
Reset and Reset Pulsewidth
Figure 93. Programming Current vs. VCC
PROGRAMMING CURRENT vs. Vcc
25 |
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20 |
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-40°C |
|
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25°C |
15 |
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(mA) |
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85°C |
CC |
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I |
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10 |
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5 |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
Figure 94. Reset Supply Current vs. VCC (0.1 - 1.0 MHz, Excluding Current Through The Reset Pull-up)
RESET SUPPLY CURRENT vs. FREQUENCY
0.1 - 1.0 MHz, EXCLUDING CURRENT THROUGH THE RESET PULLUP
|
0.18 |
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0.16 |
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5.5V |
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0.14 |
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5.0V |
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0.12 |
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4.5V |
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(mA) |
0.1 |
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4.0V |
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3.3V |
|
CC |
0.08 |
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I |
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||
|
0.06 |
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2.7V |
|
0.04 |
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1.8V |
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0.02 |
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0 |
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0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
1 |
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Frequency (MHz) |
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133
2535A–AVR–06/03

Figure 95. Reset Supply Current vs. VCC (1 - 20 MHz, Excluding Current Through The
Reset Pull-up)
RESET SUPPLY CURRENT vs. FREQUENCY
1 - 20 MHz, EXCLUDING CURRENT THROUGH THE RESET PULLUP
|
3.5 |
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3 |
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5.5V |
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2.5 |
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5.0V |
(mA) |
2 |
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4.5V |
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||
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4.0V |
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CC |
1.5 |
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I |
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1 |
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3.3V |
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0.5 |
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2.7V |
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1.8V |
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0 |
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0 |
2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
Frequency (MHz)
Figure 96. Minumum Reset Pulse Width vs VCC
MINUMUM RESET PULSE WIDTH vs. V
CC
|
2500 |
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2000 |
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(ns) |
1500 |
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Pulsewidth |
1000 |
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500 |
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85°C |
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25°C |
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-40°C |
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0 |
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1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
134 ATtiny13
2535A–AVR–06/03