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ATMEGA1281-16AU Datasheet(PDF) 33 Page - ATMEL Corporation

Part No. ATMEGA1281-16AU
Description  8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
Download  37 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA1281-16AU Datasheet(HTML) 33 Page - ATMEL Corporation

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25
2549LS–AVR–08/07
ATmega640/1280/1281/2560/2561
10. Datasheet Revision History
Please note that the referring page numbers in this section are referring to this document.The
referring revision in this section are referring to the document revision.
10.1
Rev. 2549L-08/07
10.2
Rev. 2549K-01/07
10.3
Rev. 2549J-09/06
1.
Updated note in Table 10-10 on page 47.
2.
Updated Table 10-3 on page 42, Table 10-5 on page 43, Table 10-8 on page
46.
3.
Updated typos in “DC Characteristics” on page 370.
4.
Updated “Clock Characteristics” on page 374.
5.
Updated “External Clock Drive” on page 374.
6.
Added “System and Reset Characteristics” on page 375.
7.
Updated “SPI Timing Characteristics” on page 377.
8.
Updated “ADC Characteristics – Preliminary Data” on page 379.
9.
Updated ordering code in “ATmega640” on page 19.
1.
Updated Table 1-1 on page 3.
2.
Updated “Pin Descriptions” on page 7.
3.
Updated “Stack Pointer” on page 15.
4.
Updated “Bit 1 – EEPE: EEPROM Programming Enable” on page 35.
5.
Updated Assembly code example in “Thus, when the BOD is not enabled,
after setting the ACBG bit or enabling the ADC, the user must always
allow the reference to start up before the output from the Analog Compar-
ator or ADC is used. To reduce power consumption in Power-down mode,
the user can avoid the three conditions above to ensure that the reference
is turned off before entering Power-down mode” on page 63.
6:
Updated “EIMSK – External Interrupt Mask Register” on page 115.
7.
Updated Bit description in “PCIFR – Pin Change Interrupt Flag Register”
on page 116.
8.
Updated code example in “USART Initialization” on page 211.
9.
Updated Figure 26-8 on page 284.
10.
Updated “DC Characteristics” on page 370.
1.
Updated “Calibrated Internal RC Oscillator” on page 46.
2.
Updated code example in “Moving Interrupts Between Application and
Boot Section” on page 109.
3.
Updated “Timer/Counter Prescaler” on page 187.


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