ATmega1284P Atmel Corporation, ATmega1284P Datasheet - Page 468
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ATmega1284P
Manufacturer Part Number
ATmega1284P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284P
Flash (kbytes)
128 Kbytes
Pin Count
44
Max. Operating Frequency
20 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)
16
Eeprom (bytes)
4096
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
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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8272C–AVR–06/11
Figure 29-233.ATmega644A: Watchdog Oscillator Frequency vs. V
Figure 29-234.ATmega644A: Calibrated 8MHz RC Oscillator vs. V
119
118
117
116
115
114
113
112
111
110
109
108
8.4
8.2
7.8
7.6
7.4
7.2
8
1.5
2
ATmega164A/PA/324A/PA/644A/PA/1284/P
2
2.5
2.5
3
3
3.5
V
V
CC
CC
3.5
(V)
(V)
4
4
4.5
4.5
CC
CC
5
5
5.5
5.5
-40 °C
-40 °C
85 °C
25 °C
25 °C
85 °C
468
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