ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 288

• 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

iv
ATtiny87/ATtiny167
16 ISRC – Current Source ........................................................................ 188
17 ADC – Analog to Digital Converter ..................................................... 191
18 AnaComp - Analog Comparator ......................................................... 211
19 DebugWIRE On-chip Debug System .................................................. 215
20 Flash Programming ............................................................................. 217
21 Memory Programming ......................................................................... 225
15.6
16.1
16.2
16.3
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
18.1
18.2
19.1
19.2
19.3
19.4
19.5
19.6
20.1
20.2
21.1
21.2
21.3
Register Description .....................................................................................180
Features ........................................................................................................188
Typical applications .......................................................................................188
Control Register .............................................................................................190
Features ........................................................................................................191
Overview ........................................................................................................191
Operation .......................................................................................................193
Starting a Conversion ....................................................................................194
Prescaling and Conversion Timing ................................................................195
Changing Channel or Reference Selection ...................................................197
ADC Noise Canceler .....................................................................................198
ADC Conversion Result .................................................................................202
Temperature Measurement ...........................................................................203
Internal Voltage Reference Output ................................................................203
Register Description ......................................................................................205
Analog Comparator Inputs .............................................................................211
Register Description ......................................................................................213
Features ........................................................................................................215
Overview ........................................................................................................215
Physical Interface ..........................................................................................215
Software Break Points ...................................................................................216
Limitations of DebugWIRE ............................................................................216
DebugWIRE Related Register in I/O Memory ...............................................216
Self-Programming the Flash ..........................................................................217
Addressing the Flash During Self-Programming ...........................................218
Program and Data Memory Lock Bits ............................................................225
Fuse Bits ........................................................................................................225
Signature Bytes .............................................................................................227
8265B–AVR–09/10