ATMEGA1281-16AU Atmel, ATMEGA1281-16AU Datasheet - Page 105

• Manufacturer Part Number: ATMEGA1281-16AU
• Description: IC MCU AVR 128K FLASH 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281-16AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: 2-Wire/SPI/USART
• Total Internal Ram Size: 8KB
• # I/os (max): 54
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: TQFP
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 6
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRZ541, ATAVRRAVEN, ATAVRRZRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
• Minimum Operating Temperature: - 40 C
• Controller Family/series: AVR MEGA
• No. Of I/o's: 54
• Eeprom Memory Size: 4KB
• Ram Memory Size: 8KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHT770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13. Interrupts
13.1
2549M–AVR–09/10
Interrupt Vectors in ATmega640/1280/1281/2560/2561
T h i s s e c t i o n d e s c r i b e s t h e s p e c i f i c s o f t h e i n t e r r u p t h a n d l i n g a s p e r f o r m e d i n
ATmega640/1280/1281/2560/2561. For a general explanation of the AVR interrupt handling,
refer to
Table 13-1.
Vector
No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
1
2
3
4
5
6
7
8
9
“Reset and Interrupt Handling” on page
Address
Program
$0000
$0016
$000A
$000C
$000E
$001A
$001C
$002A
$002C
$0002
$0004
$0006
$0008
$0010
$0012
$0014
$0018
$001E
$0020
$0022
$0024
$0026
$0028
$002E
$0030
$0032
$0034
$0036
$0038
Reset and Interrupt Vectors
(1)
(3)
(2)
TIMER2 COMPB
TIMER1 COMPB
TIMER1 COMPC
TIMER0 COMPB
TIMER2 COMPA
TIMER1 COMPA
TIMER0 COMPA
ANALOG COMP
USART0 UDRE
TIMER1 CAPT
TIMER2 OVF
TIMER1 OVF
TIMER0 OVF
USART0 RX
USART0 TX
SPI, STC
PCINT0
PCINT1
PCINT2
Source
RESET
WDT
INT0
INT1
INT2
INT3
INT4
INT5
INT6
INT7
ATmega640/1280/1281/2560/2561
External Pin, Power-on Reset, Brown-out Reset,
Watchdog Reset, and JTAG AVR Reset
18.
Timer/Counter2 Compare Match A
Timer/Counter2 Compare Match B
Timer/Counter1 Compare Match A
Timer/Counter1 Compare Match B
Timer/Counter1 Compare Match C
Timer/Counter0 Compare Match A
Timer/Counter0 Compare match B
Pin Change Interrupt Request 2
Pin Change Interrupt Request 0
Pin Change Interrupt Request 1
Timer/Counter1 Capture Event
USART0 Data Register Empty
SPI Serial Transfer Complete
Watchdog Time-out Interrupt
External Interrupt Request 0
External Interrupt Request 1
External Interrupt Request 2
External Interrupt Request 3
External Interrupt Request 4
External Interrupt Request 5
External Interrupt Request 6
External Interrupt Request 7
Timer/Counter2 Overflow
Timer/Counter1 Overflow
Timer/Counter0 Overflow
USART0 Rx Complete
USART0 Tx Complete
Interrupt Definition
Analog Comparator
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