ATtiny26 Atmel Corporation, ATtiny26 Datasheet - Page 179

• Manufacturer Part Number: ATtiny26
• Manufacturer: Atmel Corporation

Specifications of ATtiny26

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 11
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

Table of
Contents
1477K–AVR–08/10
Features................................................................................................ 1
Pin Configuration ................................................................................ 2
Description........................................................................................... 3
General Information ............................................................................ 6
AVR CPU Core ..................................................................................... 7
Memories............................................................................................ 16
System Clock and Clock Options .................................................... 23
System Control and Reset................................................................ 32
Power Management and Sleep Modes ............................................ 37
Pin Descriptions.................................................................................................... 5
Resources ............................................................................................................ 6
Code Examples .................................................................................................... 6
Architectural Overview.......................................................................................... 7
General Purpose Register File ............................................................................. 8
ALU – Arithmetic Logic Unit.................................................................................. 9
Status Register – SREG ..................................................................................... 10
Stack Pointer – SP ............................................................................................. 11
Program and Data Addressing Modes ............................................................... 11
In-System Programmable Flash Program Memory ............................................ 17
SRAM Data Memory........................................................................................... 17
EEPROM Data Memory ..................................................................................... 18
I/O Memory ......................................................................................................... 20
Clock Systems and their Distribution .................................................................. 23
Clock Sources .................................................................................................... 25
Default Clock Source .......................................................................................... 26
Crystal Oscillator ................................................................................................ 26
Low-frequency Crystal Oscillator ........................................................................ 27
External RC Oscillator ........................................................................................ 28
Calibrated Internal RC Oscillator ........................................................................ 29
External Clock .................................................................................................... 30
High Frequency PLL Clock – PLLCLK ............................................................... 31
Power-on Reset .................................................................................................. 33
External Reset .................................................................................................... 34
Brown-out Detection ........................................................................................... 35
Watchdog Reset ................................................................................................. 35
MCU Status Register – MCUSR......................................................................... 36
MCU Control Register – MCUCR ....................................................................... 37
Block Diagram ...................................................................................................... 4
i