ATmega168A

Manufacturer Part NumberATmega168A
ManufacturerAtmel Corporation
ATmega168A datasheets
 


Specifications of ATmega168A

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
PicopowerNoTemp. 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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Download datasheet (21Mb)Embed
PrevNext
Table 12-1.
Reset and Interrupt Vectors in ATmega48A and ATmega48PA (Continued)
Vector No.
Program Address
24
0x017
25
0x018
26
0x019
The most typical and general program setup for the Reset and Interrupt Vector Addresses in
ATmega 48A/48PA is:
Address Labels Code
0x000
0x001
0x002
0x003
0x004
0x005
0x006
0x007
0x008
0x009
0x00A
0x00B
0x00C
0x00D
0x00E
0x00F
0x010
0x011
0x012
0x013
0x014
0x015
0x016
0x017
0x018
0x019
;
0x01ARESET:
0x01B
0x01C
0x01D
0x01E
0x01F
...
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
Source
Interrupt Definition
ANALOG COMP
Analog Comparator
TWI
2-wire Serial Interface
SPM READY
Store Program Memory Ready
rjmp
RESET
rjmp
EXT_INT0
rjmp
EXT_INT1
rjmp
PCINT0
rjmp
PCINT1
rjmp
PCINT2
rjmp
WDT
rjmp
TIM2_COMPA
rjmp
TIM2_COMPB
rjmp
TIM2_OVF
rjmp
TIM1_CAPT
rjmp
TIM1_COMPA
rjmp
TIM1_COMPB
rjmp
TIM1_OVF
rjmp
TIM0_COMPA
rjmp
TIM0_COMPB
rjmp
TIM0_OVF
rjmp
SPI_STC
rjmp
USART_RXC
rjmp
USART_UDRE
rjmp
USART_TXC
rjmp
ADC
rjmp
EE_RDY
rjmp
ANA_COMP
rjmp
TWI
rjmp
SPM_RDY
ldi
r16, high(RAMEND); Main program start
out
SPH,r16
ldi
r16, low(RAMEND)
out
SPL,r16
sei
<instr>
xxx
...
...
...
Comments
; Reset Handler
; IRQ0 Handler
; IRQ1 Handler
; PCINT0 Handler
; PCINT1 Handler
; PCINT2 Handler
; Watchdog Timer Handler
; Timer2 Compare A Handler
; Timer2 Compare B Handler
; Timer2 Overflow Handler
; Timer1 Capture Handler
; Timer1 Compare A Handler
; Timer1 Compare B Handler
; Timer1 Overflow Handler
; Timer0 Compare A Handler
; Timer0 Compare B Handler
; Timer0 Overflow Handler
; SPI Transfer Complete Handler
; USART, RX Complete Handler
; USART, UDR Empty Handler
; USART, TX Complete Handler
; ADC Conversion Complete Handler
; EEPROM Ready Handler
; Analog Comparator Handler
; 2-wire Serial Interface Handler
; Store Program Memory Ready Handler
; Set Stack Pointer to top of RAM
; Enable interrupts
60