ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 53

• 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

8235B–AVR–04/11
• Port A, Bit 2 – ADC2/AIN1/PCINT2
• Port A, Bit 3 – ADC3/PCINT3
• Port A, Bit 4 – ADC4/PCINT4
• Port A, Bit 5 – ADC5/PCINT5
• Port A, Bit 6 – ADC6/SS/PCINT6
• Port A, Bit 7 – ADC7/OC0B/ICP1/T1/SCL/SCK/PCINT7
• ADC2: Analog to Digital Converter, Channel 2
• AIN1: Analog Comparator Negative Input. Configure the port pin as input with the internal
• PCINT2: Pin Change Interrupt source 2. The PA2 pin can serve as an external interrupt
• ADC3: Analog to Digital Converter, Channel 3
• PCINT3: Pin Change Interrupt source 3. The PA3 pin can serve as an external interrupt
• ADC4: Analog to Digital Converter, Channel 4
• PCINT4: Pin Change Interrupt source 4. The PA4 pin can serve as an external interrupt
• ADC5: Analog to Digital Converter, Channel 5
• PCINT5: Pin Change Interrupt source 5. The PA5 pin can serve as an external interrupt
• ADC6: Analog to Digital Converter, Channel 6
• SS: Slave Select Input. Regardless of DDA6, this pin is automatically configured as an input
• PCINT6: Pin Change Interrupt source 6. The PA6 pin can serve as an external interrupt
• ADC7: Analog to Digital Converter, Channel 7
• OC0B: Output Compare Match output. The PA7 pin can serve as an external output for the
• ICP1: Input Capture Pin. The PA7 pin can act as an Input Capture Pin for Timer/Counter1.
• T1: Timer/Counter1 counter source.
• SCL: TWI Clock. The pin is disconnected from the port and becomes the serial clock for the
• SCK: SPI Master Clock Output / Slave Clock Input. Regardless of DDA7, this pin is
• PCINT7: Pin Change Interrupt source 7. The PA7 pin can serve as an external interrupt
pull-up switched off to avoid the digital port function from interfering with the function of the
Analog Comparator.
source for pin change interrupt 0.
source for pin change interrupt 0.
source for pin change interrupt 0.
source for pin change interrupt 0.
when SPI is enabled as a slave. The data direction of this pin is controlled by DDA6 when SPI
is enabled as a master.
source for pin change interrupt 0.
Timer/Counter0 Compare Match B. The pin has to be configured as an output (DDA7 set
(one)) to serve this function. This is also the output pin for the PWM mode timer function.
TWI when TWEN in TWSCRA is set. In this mode of operation, the pin is driven by an open
drain driver with slew rate limitation and a spike filter.
automatically configured as an input when SPI is enabled as a slave. The data direction of
the pin is controlled by DDA7 when SPI is enabled as a master.
source for pin change interrupt 0.
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ATtiny20
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