ATmega1284 Atmel Corporation, ATmega1284 Datasheet - Page 577
ATmega1284
Manufacturer Part Number
ATmega1284
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284
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
No
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
10 Power Management and Sleep Modes ................................................. 42
11 System Control and Reset .................................................................... 50
12 Interrupts ................................................................................................ 61
13 External Interrupts ................................................................................. 67
9.2Clock Sources .........................................................................................................31
9.3Low Power Crystal Oscillator ...................................................................................33
9.4Full Swing Crystal Oscillator ....................................................................................34
9.5Low Frequency Crystal Oscillator ............................................................................35
9.6Calibrated Internal RC Oscillator .............................................................................36
9.7128kHz Internal Oscillator .......................................................................................37
9.8External Clock .........................................................................................................38
9.9Timer/Counter Oscillator .........................................................................................39
9.10Clock Output Buffer ...............................................................................................39
9.11System Clock Prescaler ........................................................................................39
9.12Register Description ..............................................................................................40
10.1Overview ...............................................................................................................42
10.2Sleep Modes .........................................................................................................42
10.3BOD Disable
10.4Idle Mode ...............................................................................................................43
10.5ADC Noise Reduction Mode .................................................................................43
10.6Power-down Mode ................................................................................................44
10.7Power-save Mode .................................................................................................44
10.8Standby Mode .......................................................................................................44
10.9Extended Standby Mode .......................................................................................44
10.10Power Reduction Register ...................................................................................45
10.11Minimizing Power Consumption ..........................................................................45
10.12Register Description ............................................................................................47
11.1Resetting the AVR .................................................................................................50
11.2Internal Voltage Reference ....................................................................................54
11.3Watchdog Timer ....................................................................................................55
11.4Register Description ..............................................................................................58
12.1Overview ...............................................................................................................61
12.2Interrupt Vectors in ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P ..
12.3Register Description ..............................................................................................65
ATmega164A/PA/324A/PA/644A/PA/1284/P
61
(1)
.......................................................................................................43
ii
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