ATmega168P

Manufacturer Part NumberATmega168P
ManufacturerAtmel Corporation
ATmega168P datasheets
 


Specifications of ATmega168P

Flash (kbytes)16 KbytesPin Count32
Max. Operating Frequency20 MHzCpu8-bit AVR
# Of Touch Channels16Hardware Qtouch AcquisitionNo
Max I/o Pins23Ext Interrupts24
Usb SpeedNoUsb InterfaceNo
Spi2Twi (i2c)1
Uart1Graphic LcdNo
Video DecoderNoCamera InterfaceNo
Adc Channels8Adc Resolution (bits)10
Adc Speed (ksps)15Analog Comparators1
Resistive Touch ScreenNoTemp. SensorYes
Crypto EngineNoSram (kbytes)1
Eeprom (bytes)512Self Program MemoryYES
Dram MemoryNoNand InterfaceNo
PicopowerYesTemp. Range (deg C)-40 to 85
I/o Supply Class1.8 to 5.5Operating Voltage (vcc)1.8 to 5.5
FpuNoMpu / Mmuno / no
Timers3Output Compare Channels6
Input Capture Channels1Pwm Channels6
32khz RtcYesCalibrated Rc OscillatorYes
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Page 60/420

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12.2
Interrupt Vectors in ATmega88P
Table 12-2.
Reset and Interrupt Vectors in ATmega88P
Program
(2)
Vector No.
Address
Source
(1)
1
0x000
RESET
2
0x001
INT0
3
0x002
INT1
4
0x003
PCINT0
5
0x004
PCINT1
6
0x005
PCINT2
7
0x006
WDT
8
0x007
TIMER2 COMPA
9
0x008
TIMER2 COMPB
10
0x009
TIMER2 OVF
11
0x00A
TIMER1 CAPT
12
0x00B
TIMER1 COMPA
13
0x00C
TIMER1 COMPB
14
0x00D
TIMER1 OVF
15
0x00E
TIMER0 COMPA
16
0x00F
TIMER0 COMPB
17
0x010
TIMER0 OVF
18
0x011
SPI, STC
19
0x012
USART, RX
20
0x013
USART, UDRE
21
0x014
USART, TX
22
0x015
ADC
23
0x016
EE READY
24
0x017
ANALOG COMP
25
0x018
TWI
26
0x019
SPM READY
Notes:
1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader address at reset, see
port – Read-While-Write Self-Programming, ATmega88P and ATmega168P” on page
2. When the IVSEL bit in MCUCR is set, Interrupt Vectors will be moved to the start of the Boot Flash Section. The address of
each Interrupt Vector will then be the address in this table added to the start address of the Boot Flash Section.
Table 12-3 on page 61
tions of BOOTRST and IVSEL settings. If the program never enables an interrupt source, the
Interrupt Vectors are not used, and regular program code can be placed at these locations. This
is also the case if the Reset Vector is in the Application section while the Interrupt Vectors are in
the Boot section or vice versa.
ATmega48P/88P/168P
60
Interrupt Definition
External Pin, Power-on Reset, Brown-out Reset and Watchdog System Reset
External Interrupt Request 0
External Interrupt Request 1
Pin Change Interrupt Request 0
Pin Change Interrupt Request 1
Pin Change Interrupt Request 2
Watchdog Time-out Interrupt
Timer/Counter2 Compare Match A
Timer/Counter2 Compare Match B
Timer/Counter2 Overflow
Timer/Counter1 Capture Event
Timer/Counter1 Compare Match A
Timer/Coutner1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter0 Compare Match A
Timer/Counter0 Compare Match B
Timer/Counter0 Overflow
SPI Serial Transfer Complete
USART Rx Complete
USART, Data Register Empty
USART, Tx Complete
ADC Conversion Complete
EEPROM Ready
Analog Comparator
2-wire Serial Interface
Store Program Memory Ready
shows reset and Interrupt Vectors placement for the various combina-
”Boot Loader Sup-
275.
8025M–AVR–6/11