ATmega645P Atmel Corporation, ATmega645P Datasheet - Page 545
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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
Available stocks
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Manufacturer
Quantity
Price
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- Download datasheet (37Mb)
8285D–AVR–06/11
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 29-411.ATmega645A: Watchdog Oscillator Frequency vs. Temperature
Figure 29-412.ATmega645A: Calibrated 8MHz RC Oscillator Frequency vs. Temperature
1290
1260
1230
1200
1170
1140
1110
1080
1050
8.2
8.1
7.9
7.8
7.7
7.6
7.5
7.4
7.3
8
-45
-45
-35
-35
-25
-25
-15
-15
-5
-5
5
5
Temperature (°C)
Temperature (°C)
15
15
25
25
35
35
45
45
55
55
65
65
75
75
85
85
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V
5.5 V
4.0 V
3.3 V
2.7 V
1.8 V
545
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