ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 7

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ATtiny20

Manufacturer Part Number
ATtiny20
Description
Manufacturer
Atmel Corporation
Datasheets

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

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4. Register Summary
8235BS–AVR–04/11
Address
0x3F
0x3E
0x3D
0x3C
0x3B
0x3A
0x2F
0x2E
0x2D
0x2C
0x2B
0x2A
0x1F
0x1E
0x1D
0x1C
0x1B
0x1A
0x0F
0x0E
0x0D
0x0C
0x0B
0x0A
0x39
0x38
0x37
0x36
0x35
0x34
0x33
0x32
0x31
0x30
0x29
0x28
0x27
0x26
0x25
0x24
0x23
0x22
0x21
0x20
0x19
0x18
0x17
0x16
0x15
0x14
0x13
0x12
0x11
0x10
0x09
0x08
0x07
0x06
0x05
0x04
0x03
0x02
0x01
0x00
NVMCMD
NVMCSR
WDTCSR
TWSCRA
TWSCRB
Reserved
CLKMSR
TWSSRA
OCR1AH
OCR1BH
ADCSRA
ADCSRB
PORTCR
OSCCAL
CLKPSR
TCCR1A
TCCR1B
TCCR1C
TCNT1H
OCR1AL
OCR1BL
TCCR0A
TCCR0B
PCMSK1
PCMSK0
RSTFLR
TCNT1L
Name
MCUCR
TWSAM
GTCCR
ADMUX
QTCSR
OCR0A
OCR0B
ACSRA
ACSRB
PORTB
PORTA
TCNT0
GIMSK
TIMSK
ICR1H
DIDR0
SREG
SPCR
SPDR
TWSA
TWSD
ICR1L
ADCH
DDRB
DDRA
SPSR
ADCL
PUEB
PUEA
GIFR
TIFR
PINB
PINA
SPH
CCP
PRR
SPL
NVMBSY
COM1A1
COM0A1
PORTA7
TWSHE
ICSC01
ADC7D
PCINT7
DDRA7
FOC1A
FOC0A
PUEA7
TWDIF
ICNC1
Bit 7
ADEN
VDEN
PINA7
HSEL
WDIF
SPIE
SPIF
ICE1
TSM
ICF1
ACD
I
COM1A0
COM0A0
PORTA6
TWASIF
ICSC00
PCINT6
FOC1B
FOC0B
ADC6D
PUEA6
DDRA6
Bit 6
WCOL
ICES1
ACBG
PINA6
ADSC
VDPD
REFS
WDIE
HLEV
SPE
T
COM1B1
COM0B1
PORTA5
OCIE1B
PCINT5
OCF1B
ADATE
REFEN
ADC5D
DDRA5
TWDIE
PUEA5
DORD
TWCH
Bit 5
WDP3
PCIE1
PCIF1
PINA5
ACLP
ACO
Timer/Counter1 - Input Capture Register High Byte
H
Timer/Counter1 - Input Capture Register Low Byte
Timer/Counter1 – Compare Register A High Byte
Timer/Counter1 – Compare Register B High Byte
Timer/Counter1 – Compare Register A Low Byte
Timer/Counter1 – Compare Register B Low Byte
Timer/Counter1 – Counter Register High Byte
Timer/Counter1 – Counter Register Low Byte
Timer/Counter0 – Compare Register A
Timer/Counter0 – Compare Register B
QTouch Control and Status Register
ADC Conversion Result – High Byte
ADC Conversion Result – Low Byte
Timer/Counter0 – Counter Register
TWI Slave Address Mask Register
CPU Change Protection Byte
TWI Slave Address Register
Oscillator Calibration Byte
COM1B0
COM0B0
ADC0EN
TWASIE
PORTA4
TWI Slave Data Register
OCIE1A
WGM13
PCINT4
Stack Pointer High Byte
OCF1A
ADC4D
PUEA4
DDRA4
Stack Pointer Low Byte
PRTWI
Bit 4
TWRA
PCIE0
PINA4
BODS
MSTR
PCIF0
ADIF
ACI
S
SPI Data Register
PCINT11
PORTB3
PORTA3
CLKPS3
WGM12
WGM02
PCINT3
ADLAR
ADC3D
DDRB3
DDRA3
PUEB3
PUEA3
WDRF
PRSPI
Bit 3
TWEN
TOIE1
ACCE
MUX3
PINB3
PINA3
CPOL
TOV1
WDE
TWC
ACIE
ADIE
SM2
V
NVM Command
PCINT10
PORTB2
PORTA2
CLKPS2
PRTIM1
OCIE0B
PCINT2
OCF0B
ADPS2
ADC2D
PUEB2
DDRB2
PUEA2
DDRA2
TWSIE
ADTS2
Bit 2
WDP2
TWAA
TWBE
ACME
PINB2
PINA2
BORF
CPHA
MUX2
CS12
CS02
ACIC
SM1
N
CLKMS1
PORTB1
PORTA1
CLKPS1
PRTIM0
TWPME
OCIE0A
WGM11
WGM01
ACIRS1
PCINT9
PCINT1
ADC1D
DDRB1
DDRA1
EXTRF
TWDIR
OCF0A
ADPS1
ADTS1
PUEB1
PUEA1
Bit 1
WDP1
ACIS1
MUX1
BBMB
PINB1
PINA1
SPR1
SSPS
CS11
CS01
SM0
Z
TWCMD[1.0]
CLKMS0
PORTB0
PORTA0
CLKPS0
TWSME
PRADC
WGM10
WGM00
ACIRS0
PCINT8
PCINT0
ADC0D
DDRB0
DDRA0
ADPS0
ADTS0
PUEB0
PUEA0
PINB0
PINA0
Bit 0
PORF
WDP0
SPI2X
TWAS
TOIE0
ACIS0
MUX0
INTF0
BBMA
SPR0
TOV0
CS00
CS10
INT0
PSR
SE
C
ATtiny20
Pages 76,
Pages 76,
Pages 28,
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