ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 222

• Manufacturer Part Number: ATtiny20
• Manufacturer: Atmel Corporation

Specifications of ATtiny20

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 5
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 12
• Ext Interrupts: 12
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• 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
• Self Program Memory: NO
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

iv
ATtiny20
18 Programming Interface ........................................................................ 152
19 Memory Programming ......................................................................... 163
20 Electrical Characteristics .................................................................... 172
21 Typical Characteristics ........................................................................ 179
17.1
17.2
17.3
17.4
17.5
18.1
18.2
18.3
18.4
18.5
18.6
18.7
19.1
19.2
19.3
19.4
19.5
19.6
19.7
20.1
20.2
20.3
20.4
20.5
20.6
20.7
20.8
21.1
21.2
21.3
21.4
Features ........................................................................................................138
Overview ........................................................................................................138
General TWI Bus Concepts ...........................................................................138
TWI Slave Operation .....................................................................................144
Register Description ......................................................................................146
Features ........................................................................................................152
Overview ........................................................................................................152
Physical Layer of Tiny Programming Interface ..............................................152
Access Layer of Tiny Programming Interface ................................................156
Instruction Set ................................................................................................157
Accessing the Non-Volatile Memory Controller .............................................160
Control and Status Space Register Descriptions ..........................................160
Features ........................................................................................................163
Overview ........................................................................................................163
Non-Volatile Memories ..................................................................................164
Accessing the NVM .......................................................................................167
Self programming ..........................................................................................170
External Programming ...................................................................................170
Register Description ......................................................................................170
Absolute Maximum Ratings* .........................................................................172
DC Characteristics .........................................................................................172
Speed ............................................................................................................174
Clock Characteristics .....................................................................................174
System and Reset Characteristics ................................................................175
Analog Comparator Characteristics ...............................................................176
ADC Characteristics ......................................................................................177
Serial Programming Characteristics ..............................................................177
Supply Current of I/O Modules ......................................................................179
Current Consumption in Active Mode ............................................................180
Current Consumption in Idle Mode ................................................................183
Current Consumption in Power-down Mode ..................................................185
8235B–AVR–04/11