ATMEGA168A View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA168A

8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

Atmel Corporation 

ATmega48A/PA/88A/PA/168A/PA/328/P

Address

(0x7D)

(0x7C)

(0x7B)

(0x7A)

(0x79)

(0x78)

(0x77)

(0x76)

(0x75)

(0x74)

(0x73)

(0x72)

(0x71)

(0x70)

(0x6F)

(0x6E)

(0x6D)

(0x6C)

(0x6B)

(0x6A)

(0x69)

(0x68)

(0x67)

(0x66)

(0x65)

(0x64)

(0x63)

(0x62)

(0x61)

(0x60)

0x3F (0x5F)

0x3E (0x5E)

0x3D (0x5D)

0x3C (0x5C)

0x3B (0x5B)

0x3A (0x5A)

0x39 (0x59)

0x38 (0x58)

0x37 (0x57)

0x36 (0x56)

0x35 (0x55)

0x34 (0x54)

0x33 (0x53)

0x32 (0x52)

0x31 (0x51)

0x30 (0x50)

0x2F (0x4F)

0x2E (0x4E)

0x2D (0x4D)

0x2C (0x4C)

0x2B (0x4B)

0x2A (0x4A)

0x29 (0x49)

0x28 (0x48)

0x27 (0x47)

0x26 (0x46)

0x25 (0x45)

0x24 (0x44)

0x23 (0x43)

0x22 (0x42)

0x21 (0x41)

0x20 (0x40)

0x1F (0x3F)

0x1E (0x3E)

0x1D (0x3D)

0x1C (0x3C)

Name

Reserved

ADMUX

ADCSRB

ADCSRA

ADCH

ADCL

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

TIMSK2

TIMSK1

TIMSK0

PCMSK2

PCMSK1

PCMSK0

Reserved

EICRA

PCICR

Reserved

OSCCAL

Reserved

PRR

Reserved

Reserved

CLKPR

WDTCSR

SREG

SPH

SPL

Reserved

Reserved

Reserved

Reserved

Reserved

SPMCSR

Reserved

MCUCR

MCUSR

SMCR

Reserved

Reserved

ACSR

Reserved

SPDR

SPSR

SPCR

GPIOR2

GPIOR1

Reserved

OCR0B

OCR0A

TCNT0

TCCR0B

TCCR0A

GTCCR

EEARH

EEARL

EEDR

EECR

GPIOR0

EIMSK

EIFR

Bit 7

–

REFS1

–

ADEN

–

–

–

–

–

–

–

–

–

–

PCINT23

–

PCINT7

–

–

–

–

–

PRTWI

–

–

CLKPCE

WDIF

I

–

SP7

–

–

–

–

–

SPMIE

–

–

–

–

–

–

ACD

–

SPIF

SPIE

–

FOC0A

COM0A1

TSM

–

–

–

Bit 6

–

REFS0

ACME

ADSC

–

–

–

–

–

–

–

–

–

–

PCINT22

PCINT14

PCINT6

–

–

–

–

–

PRTIM2

–

–

–

WDIE

T

–

SP6

–

–

–

–

–

(RWWSB)5.

–

BODS(6)

–

–

–

–

ACBG

–

WCOL

SPE

–

FOC0B

COM0A0

–

–

–

–

Bit 5

Bit 4

Bit 3

Bit 2

–

–

–

–

ADLAR

–

MUX3

MUX2

–

–

–

ADTS2

ADATE

ADIF

ADIE

ADPS2

ADC Data Register High byte

ADC Data Register Low byte

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

OCIE2B

ICIE1

–

–

OCIE1B

–

–

–

OCIE0B

PCINT21

PCINT20

PCINT19

PCINT18

PCINT13

PCINT12

PCINT11

PCINT10

PCINT5

PCINT4

PCINT3

PCINT2

–

–

–

–

–

–

ISC11

ISC10

–

–

–

PCIE2

–

–

–

–

Oscillator Calibration Register

–

–

–

–

PRTIM0

–

PRTIM1

PRSPI

–

–

–

–

–

–

–

–

–

–

CLKPS3

CLKPS2

WDP3

WDCE

WDE

WDP2

H

S

V

N

–

–

–

(SP10) 5.

SP5

SP4

SP3

SP2

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

(RWWSRE)5.

BLBSET

PGWRT

–

–

–

–

BODSE(6)

PUD

–

–

–

–

WDRF

BORF

–

–

SM2

SM1

–

–

–

–

–

–

–

–

ACO

ACI

ACIE

ACIC

–

–

–

–

SPI Data Register

–

–

–

–

DORD

MSTR

CPOL

CPHA

General Purpose I/O Register 2

General Purpose I/O Register 1

–

–

–

–

Timer/Counter0 Output Compare Register B

Timer/Counter0 Output Compare Register A

Timer/Counter0 (8-bit)

–

–

WGM02

CS02

COM0B1

COM0B0

–

–

–

–

–

–

(EEPROM Address Register High Byte) 5.

EEPROM Address Register Low Byte

EEPROM Data Register

EEPM1

EEPM0

EERIE

EEMPE

General Purpose I/O Register 0

–

–

–

–

–

–

–

–

Bit 1

–

MUX1

ADTS1

ADPS1

Bit 0

–

MUX0

ADTS0

ADPS0

–

–

–

–

–

–

–

OCIE2A

OCIE1A

OCIE0A

PCINT17

PCINT9

PCINT1

–

ISC01

PCIE1

–

–

–

–

–

–

–

–

TOIE2

TOIE1

TOIE0

PCINT16

PCINT8

PCINT0

–

ISC00

PCIE0

–

–

PRUSART0

–

–

CLKPS1

WDP1

Z

SP9

SP1

–

–

–

–

–

PGERS

–

IVSEL

EXTRF

SM0

–

–

ACIS1

–

–

PRADC

–

–

CLKPS0

WDP0

C

SP8

SP0

–

–

–

–

–

SELFPRGEN

–

IVCE

PORF

SE

–

–

ACIS0

–

–

SPR1

SPI2X

SPR0

–

–

CS01

WGM01

PSRASY

CS00

WGM00

PSRSYNC

EEPE

INT1

INTF1

EERE

INT0

INTF0

Page

264

267

265

267

267

165

141

113

76

76

76

73

38

43

38

56

10

13

13

295

46/70/94

56

41

249

177

176

175

26

26

145/167

22

22

22

22

26

74

74

11

8271DS–AVR–05/11

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