ATmega645P Atmel Corporation, ATmega645P Datasheet - Page 93
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ATmega645P
Manufacturer Part Number
ATmega645P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega645P
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
17
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
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 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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- Download datasheet (37Mb)
14.4.24
14.4.25
14.4.26
14.4.27
14.4.28
8285D–AVR–06/11
DDRH – Port H Data Direction Register
PINH – Port H Input Pins Address
PORTJ – Port J Data Register
DDRJ – Port J Data Direction Register
PINJ – Port J Input Pins Address
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Note:
Bit
(0xD9)
Read/Write
Initial Value
Bit
(0xD8)
Read/Write
Initial Value
Bit
(0xDD)
Read/Write
Initial Value
Bit
(0xDC)
Read/Write
Initial Value
Bit
(0xDB)
Read/Write
Initial Value
1. Register only available in ATmega3250A/3250PA/6450A/6450P.
PINH7
DDH7
R/W
R/W
N/A
(1)
R
R
R
7
0
7
7
–
0
7
–
0
7
–
0
(1)
(1)
PORTJ6
PINH6
PINJ6
DDH6
DDJ6
R/W
R/W
R/W
R/W
R/W
N/A
(1)
N/A
(1)
6
0
6
6
0
6
0
6
PORTJ5
PINH5
PINJ5
DDH5
DDJ5
R/W
R/W
R/W
R/W
R/W
N/A
N/A
5
0
5
0
5
0
5
5
PORTJ4
PINH4
PINJ4
DDH4
DDJ4
R/W
R/W
R/W
R/W
R/W
N/A
N/A
4
0
4
0
4
0
4
4
PORTJ3
PINH3
PINJ3
DDH3
DDJ3
R/W
R/W
R/W
R/W
R/W
N/A
N/A
3
0
3
0
3
0
3
3
PORTJ2
PINH2
DDH2
DDJ2
PINJ2
R/W
R/W
R/W
R/W
R/W
N/A
N/A
2
0
2
0
2
0
2
2
PORTJ1
PINH1
DDH1
DDJ1
PINJ1
R/W
R/W
R/W
R/W
R/W
N/A
N/A
1
0
1
0
1
1
0
1
PORTJ0
PINH0
DDH0
DDJ0
PINJ0
R/W
R/W
R/W
R/W
R/W
N/A
N/A
0
0
0
0
0
0
0
0
PORTJ
DDRH
DDRJ
PINH
PINJ
93
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