ATmega3290P Atmel Corporation, ATmega3290P Datasheet - Page 420

• Manufacturer Part Number: ATmega3290P
• Manufacturer: Atmel Corporation

Specifications of ATmega3290P

• Flash (kbytes): 32 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 160
• 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): 2
• Eeprom (bytes): 1024
• 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

Table of Contents
8021G–AVR–03/11
1
2
3
4
5
6
7
8
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 4
Resources ................................................................................................. 9
Data Retention .......................................................................................... 9
About Code Examples ............................................................................. 9
AVR CPU Core ........................................................................................ 10
AVR Memories ........................................................................................ 18
System Clock and Clock Options ......................................................... 27
2.1Block Diagram ...........................................................................................................4
2.2Comparison between ATmega329P, and ATmega3290P. ........................................5
2.3Pin Descriptions ........................................................................................................6
6.1Overview .................................................................................................................10
6.2Architectural Overview ............................................................................................10
6.3ALU – Arithmetic Logic Unit ....................................................................................11
6.4AVR Status Register ...............................................................................................11
6.5General Purpose Register File ................................................................................13
6.6Stack Pointer ...........................................................................................................14
6.7Instruction Execution Timing ...................................................................................15
6.8Reset and Interrupt Handling ..................................................................................16
7.1Overview .................................................................................................................18
7.2In-System Reprogrammable Flash Program Memory .............................................18
7.3SRAM Data Memory ...............................................................................................18
7.4EEPROM Data Memory ..........................................................................................20
7.5I/O Memory ..............................................................................................................21
7.6Register Description ................................................................................................22
8.1Clock Systems and their Distribution .......................................................................27
8.2Clock Sources .........................................................................................................28
8.3Default Clock Source ...............................................................................................28
8.4Crystal Oscillator .....................................................................................................29
8.5Low-frequency Crystal Oscillator .............................................................................30
8.6Calibrated Internal RC Oscillator .............................................................................31
ATmega329P/3290P
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