ATmega644P Automotive Atmel Corporation, ATmega644P Automotive Datasheet - Page 50
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ATmega644P Automotive
Manufacturer Part Number
ATmega644P Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATmega644P Automotive
Flash (kbytes)
64 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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10. Interrupts
10.1
50
Interrupt Vectors
Atmel ATtiny24/44/84 [Preliminary]
This section describes the specifics of the interrupt handling as performed in Atmel
ATtiny24/44/84. For a general explanation of the AVR
Interrupt Handling” on page
Table 10-1.
Vector No.
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
Reset and Interrupt Vectors
Program Address
0x000A
0x000B
0x000C
0x000D
0x000E
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
0x0009
0x000F
0x0010
12.
EE_RDY
Source
RESET
INT0
PCINT0
PCINT1
WDT
TIMER1 CAPT
TIMER1 COMPA
TIMER1 COMPB
TIMER1 OVF
TIMER0 COMPA
TIMER0 COMPB
TIMER0 OVF
ANA_COMP
ADC
USI_START
USI_OVF
Interrupt Definition
External Pin, Power-on Reset, Brown-out
Reset, Watchdog Reset
Pin Change Interrupt Request 0
Pin Change Interrupt Request 1
Watchdog Time-out
Timer/Counter1 Capture Event
Timer/Counter1 Compare Match A
Timer/Counter1 Compare Match B
Timer/Counter0 Overflow
Timer/Counter0 Compare Match A
Timer/Counter0 Compare Match B
Timer/Counter0 Overflow
Analog Comparator
ADC Conversion Complete
EEPROM Ready
USI START
USI Overflow
External Interrupt Request 0
®
interrupt handling, see
7701E–AVR–02/11
“Reset and
®
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