ATtiny261 Atmel Corporation, ATtiny261 Datasheet - Page 239

• Manufacturer Part Number: ATtiny261
• Manufacturer: Atmel Corporation

Specifications of ATtiny261

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

2588E–AVR–08/10
13 USI – Universal Serial Interface .......................................................... 125
14 AC – Analog Comparator .................................................................... 137
15 ADC – Analog to Digital Converter ..................................................... 142
16 debugWIRE On-chip Debug System .................................................. 163
12.7
12.8
12.9
12.10
12.11
12.12
13.1
13.2
13.3
13.4
13.5
14.1
14.2
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
15.12
15.13
16.1
16.2
16.3
16.4
16.5
Compare Match Output Unit ............................................................................97
Modes of Operation .........................................................................................99
Timer/Counter Timing Diagrams ...................................................................106
Fault Protection Unit ......................................................................................107
Accessing 10-Bit Registers ............................................................................108
Register Description ......................................................................................112
Features ........................................................................................................125
Overview ........................................................................................................125
Functional Descriptions .................................................................................126
Alternative USI Usage ...................................................................................132
Register Descriptions ....................................................................................132
Analog Comparator Multiplexed Input ...........................................................137
Register Description ......................................................................................139
Features ........................................................................................................142
Overview ........................................................................................................142
Operation .......................................................................................................143
Starting a Conversion ....................................................................................144
Prescaling and Conversion Timing ................................................................145
Changing Channel or Reference Selection ...................................................148
ADC Noise Canceler .....................................................................................149
Analog Input Circuitry ....................................................................................150
Noise Canceling Techniques .........................................................................150
ADC Accuracy Definitions .............................................................................151
ADC Conversion Result .................................................................................153
Temperature Measurement ...........................................................................154
Register Description ......................................................................................155
Features ........................................................................................................163
Overview ........................................................................................................163
Physical Interface ..........................................................................................163
Software Break Points ...................................................................................164
Limitations of debugWIRE .............................................................................164
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