ATMEGA161-8PI Atmel, ATMEGA161-8PI Datasheet - Page 144

• Manufacturer Part Number: ATMEGA161-8PI
• Description: IC AVR MCU 16K 8MHZ IND 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA161-8PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: ATMEGA1618PI

Register Summary
144
Address
$3E ($5E)
$3D ($5D)
$3C ($5C)
$3B ($5B)
$3A ($5A)
$2E ($4E)
$2D ($4D)
$2C ($4C)
$2B ($4B)
$2A ($4A)
$1E ($3E)
$1D ($3D)
$1C ($3C)
$1B ($3B)
$1A ($3A)
$0E ($2E)
$0D ($2D)
$0C ($2C)
$0B ($2B)
$0A ($2A)
$3F ($5F)
$39 ($59)
$38 ($58)
$37 ($57)
$36 ($56)
$35 ($55)
$34 ($54)
$33 ($53)
$32 ($52)
$31 ($51)
$30 ($50)
$2F ($4F)
$29 ($49)
$28 ($48)
$27 ($47)
$26 ($46)
$25 ($45)
$24 ($44)
$23 ($43)
$22 ($42)
$21 ($41)
$20 ($40)
$1F ($3F)
$19 ($39)
$18 ($38)
$17 ($37)
$16 ($36)
$15 ($35)
$14 ($34)
$13 ($33)
$12 ($32)
$11 ($31)
$10 ($30)
$0F ($2F)
$09 ($29)
$08 ($28)
$07 ($27)
$06 ($26)
$05 ($25)
$04 ($24)
$03 ($23)
$02 ($22)
$01 ($21)
$00 ($20)
ATmega161(L)
EMCUCR
Reserved
OCR1AH
OCR1BH
Reserved
TCCR1A
TCCR1B
TCNT1H
OCR1AL
OCR1BL
UCSR0A
UCSR0B
UCSR1A
UCSR1B
MCUCR
TCNT1L
WDTCR
UBRRHI
Name
SPMCR
MCUSR
TCCR0
TCCR2
EEARH
PORTA
PORTB
PORTC
PORTD
UBRR0
PORTE
UBRR1
GIMSK
TCNT0
TCNT2
EEARL
TIMSK
SFIOR
ICR1H
SREG
OCR0
ASSR
ICR1L
OCR2
EEDR
EECR
DDRA
DDRB
DDRC
DDRD
SPDR
SPSR
SPCR
UDR0
ACSR
DDRE
UDR1
GIFR
PINA
PINB
PINC
PIND
PINE
TIFR
SPH
SPL
COM1A1
PORTA7
PORTB7
PORTC7
PORTD7
RXCIE0
RXCIE1
ICNC1
PINC7
PIND7
Bit 7
INTF1
TOIE1
PINA7
PINB7
DDC7
DDD7
TOV1
FOC0
FOC2
DDA7
DDB7
RXC0
RXC1
SP15
INT1
SPIF
SPIE
ACD
SM0
SRE
SP7
-
-
-
-
-
-
-
-
-
-
I
COM1A0
PORTA6
PORTB6
PORTC6
PORTD6
OCIE1A
SRW10
TXCIE0
TXCIE1
OCF1A
PWM0
PWM2
PINC6
PIND6
WCOL
AINBG
Bit 6
INTF0
ICES1
PINA6
PINB6
DDA6
DDB6
DDC6
DDD6
TXC0
TXC1
SP14
SRL2
INT0
SPE
SP6
T
-
-
-
-
-
-
-
-
-
-
UBRR1[11:8]
COM1B1
PORTC5
PORTD5
PORTA5
PORTB5
OCIE1B
UDRIE0
UDRIE1
COM01
COM21
OCF1B
UDRE0
UDRE1
Bit 5
INTF2
PINA5
PINB5
PINC5
PIND5
DORD
DDA5
DDB5
DDC5
DDD5
SP13
SRL1
INT2
ACO
SP5
SE
H
Timer/Counter1 - Output Compare Register A High Byte
Timer/Counter1 - Output Compare Register B High Byte
-
-
-
-
Timer/Counter1 - Output Compare Register A Low Byte
Timer/Counter1 - Output Compare Register B Low Byte
-
-
-
-
-
-
-
-
Timer/Counter1 - Input Capture Register High Byte
Timer/Counter1 - Input Capture Register Low Byte
Timer/Counter1 - Counter Register High Byte
Timer/Counter1 - Counter Register Low Byte
Timer/Counter0 Output Compare Register
Timer/Counter2 Output Compare Register
EEPROM Address Register Low Byte
Timer/Counter0 Counter Register
Timer/Counter2 Counter Register
COM1B0
PORTC4
PORTD4
PORTA4
PORTB4
WDTOE
COM00
COM20
RXEN0
UART0 Baud Rate Register
RXEN1
UART1 Baud Rate Register
Bit 4
TOIE2
PINA4
PINB4
PINC4
PIND4
TOV2
DDA4
DDB4
DDC4
DDD4
MSTR
SP12
SRL0
UART0 I/O Data Register
UART1 I/O Data Register
SM1
SP4
FE0
FE1
EEPROM Data Register
ACI
S
-
-
-
-
-
-
-
-
-
-
-
-
SPI Data Register
PORTA3
PORTB3
PORTC3
PORTD3
SRW01
FOC1A
TICIE1
LBSET
TXEN0
TXEN1
Bit 3
WDRF
EERIE
PINA3
PINB3
PINC3
PIND3
ISC11
DDC3
DDD3
CPOL
CTC0
CTC1
CTC2
DDA3
DDB3
SP11
AS20
WDE
ACIE
ICF1
OR0
OR1
SP3
V
-
-
-
-
-
-
-
TCON2UB
PORTA2
PORTB2
PORTC2
PORTD2
PORTE2
EEMWE
PGWRT
SRW00
FOC1B
CHR90
CHR91
OCIE2
OCFI2
PINC2
PIND2
Bit 2
ISC10
BORF
WDP2
PINA2
PINB2
CPHA
PINE2
DDA2
DDB2
DDC2
DDD2
DDE2
SP10
CS02
CS12
CS22
ACIC
SP2
N
-
-
-
-
-
-
UBRR0[11:8]
OCR2UB
PORTA1
PORTB1
PORTC1
PORTD1
PORTE1
PGERS
PWM11
SRW11
EXTRF
RXB80
RXB81
Bit 1
TOIE0
WDP1
EEWE
PINA1
PINB1
PINC1
PIND1
ACIS1
PINE1
ISC01
DDA1
DDB1
DDC1
DDD1
DDE1
TOV0
CS01
PSR2
CS11
CS21
SPR1
U2X0
U2X1
SP9
SP1
Z
-
-
-
TCR2UB
PORTA0
PORTB0
PORTC0
PORTD0
PORTE0
MPCM0
MPCM1
SPMEN
PWM10
PSR10
EEAR8
OCIE0
PINC0
PIND0
TXB80
TXB81
Bit 0
OCIF0
ISC00
PORF
WDP0
PINA0
PINB0
SPI2X
ACIS0
PINE0
EERE
DDA0
DDB0
DDC0
DDD0
SPR0
DDE0
CS00
CS10
CS20
ISC2
SP8
SP0
C
-
1228D–AVR–02/07
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