ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 228

• Manufacturer Part Number: ATtiny85
• Manufacturer: Atmel Corporation

Specifications of ATtiny85

• Flash (kbytes): 8 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 3
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

ii
ATtiny25/45/85
8
9
10 I/O Ports .................................................................................................. 55
11 8-bit Timer/Counter0 with PWM ............................................................ 67
12 8-bit Timer/Counter1 .............................................................................. 86
System Control and Reset .................................................................... 41
Interrupts ................................................................................................ 50
7.1
7.2
7.3
7.4
7.5
8.1
8.2
8.3
8.4
8.5
9.1
9.2
9.3
10.1
10.2
10.3
10.4
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
12.1
12.2
12.3
Sleep Modes ....................................................................................................35
Software BOD Disable .....................................................................................36
Power Reduction Register ...............................................................................37
Minimizing Power Consumption ......................................................................37
Register Description ........................................................................................38
Resetting the AVR ...........................................................................................41
Reset Sources .................................................................................................41
Internal Voltage Reference ..............................................................................44
Watchdog Timer ..............................................................................................44
Register Description ........................................................................................46
Interrupt Vectors in ATtiny25/45/85 .................................................................50
External Interrupts ...........................................................................................51
Register Description ........................................................................................53
Introduction ......................................................................................................55
Ports as General Digital I/O .............................................................................56
Alternate Port Functions ..................................................................................59
Register Description ........................................................................................66
Features ..........................................................................................................67
Overview ..........................................................................................................67
Timer/Counter0 Prescaler and Clock Sources ................................................68
Counter Unit ....................................................................................................70
Output Compare Unit .......................................................................................71
Compare Match Output Unit ............................................................................72
Modes of Operation .........................................................................................73
Timer/Counter Timing Diagrams .....................................................................78
Register Description ........................................................................................80
Timer/Counter1 Prescaler ...............................................................................86
Counter and Compare Units ............................................................................86
Register Description ........................................................................................92
2586N–AVR–04/11