ATmega1284 Atmel Corporation, ATmega1284 Datasheet - Page 576
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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Quantity
Price
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Manufacturer:
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20 000
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FREESCALE
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593
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Quantity:
20 000
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Table of Contents
8272C–AVR–06/11
1
2
3
4
5
6
7
8
9
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 5
Resources ................................................................................................. 9
About Code Examples ............................................................................. 9
Data Retention .......................................................................................... 9
Capacitive touch sensing ........................................................................ 9
AVR CPU Core ........................................................................................ 10
AVR Memories ........................................................................................ 19
System Clock and Clock Options ......................................................... 30
1.1Pinout - PDIP/TQFP/VQFN/QFN/MLF for
1.2Pinout - DRQFN for ATmega164A/164PA/324A/324PA ...........................................3
1.3Pinout - VFBGA for ATmega164A/164PA/324A/324PA ............................................4
2.1Block Diagram ...........................................................................................................5
2.2Comparison Between ATmega164A, ATmega164PA, ATmega324A, ATmega324PA,
2.3Pin Descriptions ........................................................................................................7
7.1Overview .................................................................................................................10
7.2ALU – Arithmetic Logic Unit ....................................................................................11
7.3Status Register ........................................................................................................11
7.4General Purpose Register File ................................................................................13
7.5Stack Pointer ...........................................................................................................14
7.6Instruction Execution Timing ...................................................................................15
7.7Reset and Interrupt Handling ..................................................................................16
8.1Overview .................................................................................................................19
8.2In-System Reprogrammable Flash Program Memory .............................................19
8.3SRAM Data Memory ...............................................................................................20
8.4EEPROM Data Memory ..........................................................................................22
8.5I/O Memory ..............................................................................................................23
8.6Register Description ................................................................................................24
9.1Clock Systems and their Distribution .......................................................................30
ATmega164A/PA/324A/PA/644A/PA/1284/P
ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P 2
ATmega644A, ATmega644PA, ATmega1284 and ATmega1284P 7
i
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