ATmega645P Atmel Corporation, ATmega645P Datasheet - Page 603
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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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29.9.9
8285D–AVR–06/11
Pin Threshold and Hysteresis
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 29-521.ATmega6450A: I/O Pin Input Threshold Voltage vs. V
Figure 29-522.ATmega6450A: I/O Pin Input Threshold Voltage vs. V
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
2.4
2.2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
2
1
1.5
1.5
2
2
2.5
2.5
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
4
4
4.5
4.5
CC
CC
(V
(V
5
5
IH
IL
, I/O Pin Read as “1”)
, I/O Pin Read as “0”
5.5
5.5
-45 °C
-45 °C
85 °C
25 °C
85 °C
25 °C
603
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