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ATMEGA644 Datasheet(PDF) 19 Page - ATMEL Corporation

Part No. ATMEGA644
Description  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
Download  22 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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ATMEGA644 Datasheet(HTML) 19 Page - ATMEL Corporation

 
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19
2593LS–AVR–02/07
ATmega644
9.
Datasheet Revision History
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
9.1
Rev. 2593L - 02/07
9.2
Rev. 2593K - 01/07
9.3
Rev. 2593J - 09/06
9.4
Rev. 2593I - 08/06
9.5
Rev. 2593H - 07/06
1.
Updated Table 24-7 on page 282.
1
Removed the “Not recommended in new designs“ notice on page 1.
2.
Updated Figure 2-1 on page 3.
3.
Updated ”PCIFR – Pin Change Interrupt Flag Register” on page 65.
4.
Updated Table 21-4 on page 248.
5.
Added note to ”DC Characteristics” on page 315.
1.
Updated ”Calibrated Internal RC Oscillator” on page 34.
2.
Updated ”Fast PWM Mode” on page 119.
3.
Updated ”Device Identification Register” on page 260.
4.
Updated ”Signature Bytes” on page 286.
5.
Updated Table 13-3 on page 100,Table 13-6 on page 101, Table 14-3 on page 128,
Table 14-4 on page 128, Table 14-5 on page 129, Table 15-3 on page 146, Table 15-6
on page 147 and Table 15-8 on page 148.
1.
Updated note in ”Pin Configurations” on page 2.
2.
Updated Table 7-2 on page 30, Table 12-11 on page 83 and Table 24-7 on page 282.
3.
Updated ”Timer/Counter Prescaler” on page 154.
1.
Updated ”Fast PWM Mode” on page 119.
2.
Updated Figure 14-7 on page 120.
3.
Updated Table 24-7 on page 282.
4.
Updated ”Packaging Information” on page 360.


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