ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 286

• Manufacturer Part Number: ATtiny87
• Manufacturer: Atmel Corporation

Specifications of ATtiny87

• Flash (kbytes): 8 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 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: 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: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

ii
ATtiny87/ATtiny167
6
7
8
9
10 8-bit Timer/Counter0 and Asynchronous Operation .......................... 87
System Control and Reset .................................................................... 49
Interrupts ................................................................................................ 59
External Interrupts ................................................................................. 62
I/O-Ports .................................................................................................. 67
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
6.1
6.2
6.3
7.1
7.2
7.3
8.1
8.2
8.3
9.1
9.2
9.3
9.4
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
BOD Disable ....................................................................................................43
Idle Mode .........................................................................................................43
ADC Noise Reduction Mode ............................................................................43
Power-down Mode ...........................................................................................44
Power-save Mode ............................................................................................44
Power Reduction Register ...............................................................................44
Minimizing Power Consumption ......................................................................45
Register Description ........................................................................................46
Reset ...............................................................................................................49
Internal Voltage Reference ..............................................................................53
Watchdog Timer ..............................................................................................53
Interrupt Vectors in ATtiny87/167 ....................................................................59
Program Setup in ATtiny87 .............................................................................60
Program Setup in ATtiny167 ...........................................................................61
Overview ..........................................................................................................62
Pin Change Interrupt Timing ............................................................................62
Register Description ........................................................................................63
Introduction ......................................................................................................67
Ports as General Digital I/O .............................................................................68
Alternate Port Functions ..................................................................................72
Register Description ........................................................................................86
Features ..........................................................................................................87
Overview ..........................................................................................................87
Timer/Counter Clock Sources .........................................................................89
Counter Unit ....................................................................................................89
Output Compare Unit .......................................................................................90
Compare Match Output Unit ............................................................................91
Modes of Operation .........................................................................................92
Timer/Counter Timing Diagrams .....................................................................97
8265B–AVR–09/10