ATmega645P Atmel Corporation, ATmega645P Datasheet - Page 353
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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29.1.10
8285D–AVR–06/11
BOD Thresholds and Analog Comparator Offset
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 29-40. ATmega165A: BOD Thresholds vs. Temperature (BOD Level is 4.3V)
Figure 29-41. ATmega165A: BOD Thresholds vs. Temperature (BOD Level is 2.7V)
2.767
2.752
2.737
2.722
2.707
2.692
2.677
2.662
4.37
4.35
4.33
4.31
4.29
4.27
4.25
4.23
-45
-45
-35
-35
-25
-25
-15
-15
-5
-5
5
5
Temperature (°C)
Temperature (°C)
Rising Vcc
Falling Vcc
Rising Vcc
15
15
Falling Vcc
25
25
35
35
45
45
55
55
65
65
75
75
85
85
353
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