ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 55

• 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

10.3.2
8235B–AVR–04/11
Alternate Functions of Port B
Table 10-6.
The Port B pins with alternate function are shown in
Table 10-7.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PB0
PB1
PB3
PB2
Overriding Signals for Alternate Functions in PA[1:0]
Port B Pins Alternate Functions
ADC1 / Analog Comparator Positive Input
PCINT1 • PCIE0 + ADC1D
PA1/ADC1/AIN0/PCINT1
PCINT1 • PCIE0
PCINT1 Input
Alternate Function
T0:
CLKI:
TPICLK: Serial Programming Clock
PCINT8: Pin Change Interrupt 1, Source 8
OC1A: Timer/Counter1 Compare Match A output
SDA:
MOSI:
TPIDATA: Serial Programming Data
PCINT9: Pin Change Interrupt 1, Source 9
INT0:
OC0A: Timer/Counter0 Compare Match A output
OC1B: Timer/Counter1 Compare Match B output
MISO:
CKOUT: System Clock Output
PCINT10:Pin Change Interrupt 1, Source 10
RESET: Reset pin
PCINT11:Pin Change Interrupt 1, Source 11.
0
0
0
0
0
0
0
Timer/Counter0 Clock Source
External Clock Input
TWI Data Input/Output
SPI Master Output / Slave Input
External Interrupt 0 Input
SPI Master Input / Slave Output
Table
10-7.
PCINT0 • PCIE0 + ADC0D
PA0/ADC0/PCINT0
PCINT0 • PCIE0
PCINT0 Input
ADC1 Input
0
0
0
0
0
0
0
ATtiny20
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