- •Features
- •Pin Configuration
- •Description
- •Block Diagram
- •Pin Descriptions
- •AVCC
- •Port A (PA7..PA0)
- •Port B (PB7..PB0)
- •XTAL1
- •XTAL2
- •Resources
- •AVR CPU Core
- •Architectural Overview
- •I/O Direct
- •Data Direct
- •Data Indirect with Displacement
- •Data Indirect
- •Memories
- •SRAM Data Memory
- •EEPROM Data Memory
- •EEPROM Read/Write Access
- •I/O Memory
- •Clock Systems and their Distribution
- •Clock Sources
- •Default Clock Source
- •Crystal Oscillator
- •External RC Oscillator
- •External Clock
- •Power-on Reset
- •External Reset
- •Brown-out Detection
- •Watchdog Reset
- •Idle Mode
- •Power-down Mode
- •Standby Mode
- •Analog to Digital Converter
- •Analog Comparator
- •Brown-out Detector
- •Internal Voltage Reference
- •Watchdog Timer
- •Port Pins
- •I/O Ports
- •Introduction
- •Configuring the Pin
- •Reading the Pin Value
- •Unconnected Pins
- •Alternate Port Functions
- •Alternate Functions of Port A
- •Alternate Functions Of Port B
- •Register Description for I/O Ports
- •Interrupts
- •Interrupt Vectors
- •Interrupt Handling
- •Interrupt Response Time
- •External Interrupt
- •Pin Change Interrupt
- •Timer/Counters
- •Timer/Counter0 Prescaler
- •Timer/Counter1 Prescaler
- •8-bit Timer/Counter0
- •8-bit Timer/Counter1
- •Timer/Counter1 in PWM Mode
- •Watchdog Timer
- •Overview
- •Register Descriptions
- •Functional Descriptions
- •Three-wire Mode
- •SPI Slave Operation Example
- •Two-wire Mode
- •Start Condition Detector
- •Alternative USI Usage
- •4-bit Counter
- •12-bit Timer/Counter
- •Software Interrupt
- •Analog Comparator
- •Analog to Digital Converter
- •Features
- •Operation
- •Changing Channel or Reference Selection
- •ADC Conversion Result
- •ADLAR = 0
- •ADLAR = 1
- •Fuse Bits
- •Latching of Fuses
- •Signature Bytes
- •Calibration Byte
- •Page Size
- •Signal Names
- •Parallel Programming
- •Enter Programming Mode
- •Chip Erase
- •Programming the Flash
- •Programming the EEPROM
- •Reading the Flash
- •Reading the EEPROM
- •Programming the Lock Bits
- •Reading the Signature Bytes
- •Reading the Calibration Byte
- •Serial Downloading
- •Data Polling Flash
- •Data Polling EEPROM
- •Electrical Characteristics
- •Absolute Maximum Ratings*
- •DC Characteristics
- •External Clock Drive Waveforms
- •External Clock Drive
- •ADC Characteristics
- •Active Supply Current
- •Idle Supply Current
- •Power-down Supply Current
- •Standby Supply Current
- •Pin Pull-up
- •Internal Oscillator Speed
- •Register Summary
- •Instruction Set Summary
- •Ordering Information
- •Packaging Information
- •Errata
- •ATtiny26 Rev. B/C/D
- •Table of Contents
ATtiny26(L)
Figure 78. Active Supply Current vs. VCC (32 kHz External Oscillator)
ICC (uA)
ACTIVE SUPPLY CURRENT vs. VCC
32kHz EXTERNAL OSCILLATOR
70
60 |
25°C |
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50
40
30
20
10
0
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 79. Idle Supply Current vs. Frequency (0.1 - 1.0 MHz) |
ICC (mA)
IDLE SUPPLY CURRENT vs. FREQUENCY
0.1 - 1.0 MHz
0.6
5.5V
0.5
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5.0V |
0.4 |
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4.5V |
0.3 |
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4.0V |
0.2 |
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3.3V |
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3.0V |
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2.7V |
0.1 |
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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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137
1477J–AVR–06/07
Figure 80. Idle Supply Current vs. Frequency (1 - 20 MHz)
IDLE SUPPLY CURRENT vs. FREQUENCY
ICC (mA)
1 - 20 MHz
12
5.5V
10
5.0V
8
4.5V
6
4.0V
4
3.3V
2
3.0V
2.7V
0
0 |
2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
Frequency (MHz)
Figure 81. Idle Supply Current vs. VCC (Internal RC Oscillator, 8 MHz)
ICC (mA)
IDLE SUPPLY CURRENT vs. VCC
INTERNAL RC OSCILLATOR, 8 MHz
7
-40°C 6 25°C 85°C
5
4
3
2
1
0
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
138 ATtiny26(L)
1477J–AVR–06/07
ATtiny26(L)
Figure 82. Idle Supply Current vs. VCC (Internal RC Oscillator, 4 MHz)
IDLE SUPPLY CURRENT vs. VCC
ICC (mA)
INTERNAL RC OSCILLATOR, 4 MHz
3.5
-40°C
3
25°C
85°C
2.5
2
1.5
1
0.5
0
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
Figure 83. Idle Supply Current vs. VCC (Internal RC Oscillator, 2 MHz)
ICC (mA)
IDLE SUPPLY CURRENT vs. VCC
INTERNAL RC OSCILLATOR, 2 MHz
1.6
25°C
1.4
85°C
-40°C
1.2
1
0.8
0.6
0.4
0.2
0
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
139
1477J–AVR–06/07
Figure 84. Idle Supply Current vs. VCC (Internal RC Oscillator, 1 MHz)
IDLE SUPPLY CURRENT vs. VCC
ICC (mA)
INTERNAL RC OSCILLATOR, 1 MHz
0.8 |
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25°C |
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0.7 |
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85°C |
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-40°C |
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0.6 |
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0.5 |
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0.4 |
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0.3 |
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0.2 |
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0.1 |
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0 |
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2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
Figure 85. Idle Supply Current vs. VCC (PLL Oscillator)
IDLE SUPPLY CURRENT vs. VCC
PLL OSCILLATOR
10
25°C
85°C
8
-40°C
6
ICC (mA)
4
2
0
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
VCC (V)
140 ATtiny26(L)
1477J–AVR–06/07