ATmega644P Atmel Corporation, ATmega644P Datasheet - Page 437

• Manufacturer Part Number: ATmega644P
• Manufacturer: Atmel Corporation

Specifications of ATmega644P

• Flash (kbytes): 64 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): 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8011O–AVR–07/10
26 Typical Characteristics ........................................................................ 338
27 Register Summary ............................................................................... 413
28 Instruction Set Summary .................................................................... 417
29 Ordering Information ........................................................................... 420
30 Packaging Information ........................................................................ 423
31 Errata ..................................................................................................... 426
32 Datasheet Revision History ................................................................ 427
25.5 External Interrupts Characteristics .....................................................................331
25.6 SPI Timing Characteristics .................................................................................332
25.7 2-wire Serial Interface Characteristics ................................................................333
25.8 ADC Characteristics ...........................................................................................335
26.1 ATmega164P Typical Characterization ..............................................................338
26.2 ATmega324P Typical Characteristics ................................................................363
26.3 ATmega644P Typical Characteristic ..................................................................388
29.1 ATmega164P .....................................................................................................420
29.2 ATmega324P .....................................................................................................421
29.3 ATmega644P .....................................................................................................422
30.1 44A .....................................................................................................................423
30.2 40P6 ...................................................................................................................424
30.3 44M1 ..................................................................................................................425
31.1 ATmega164P .....................................................................................................426
31.2 ATmega324P .....................................................................................................426
31.3 ATmega644P .....................................................................................................426
32.1 Rev. 8011O- 07/10 .............................................................................................427
32.2 Rev. 8011N- 10/09 .............................................................................................427
32.3 Rev. 8011M- 08/09 .............................................................................................427
32.4 Rev. 8011L- 02/09 ..............................................................................................427
32.5 Rev. 8011K- 09/08 .............................................................................................428
32.6 Rev. 8011J- 09/08 ..............................................................................................428
32.7 Rev. 8011I- 05/08 ...............................................................................................428
32.8 Rev. 8011H- 04/08 .............................................................................................429
32.9 Rev. 8011G- 08/07 .............................................................................................429
32.10 Rev. 8011F- 04/07 ............................................................................................429
32.11 Rev. 8011E - 04/07 ..........................................................................................429
ATmega164P/324P/644P
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