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A000063

更新时间： 2022-05-13 23:37:24

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存微控制器
页数	文件大小	规格书
40页	1116K
描述
8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash

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A000063 数据手册

ATmega640/1280/1281/2560/2561

Updated “SPI Timing Characteristics” on page 375.

Updated “ADC Characteristics – Preliminary Data” on page 377.

Updated ordering code in “ATmega640” on page 20.

12.4 Rev. 2549K-01/07

Updated Table 1-1 on page 3.

Updated “Pin Descriptions” on page 7.

Updated “Stack Pointer” on page 16.

Updated “Bit 1 – EEPE: EEPROM Programming Enable” on page 36.

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 Comparator 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.

Updated “EIMSK – External Interrupt Mask Register” on page 115.

Updated Bit description in “PCIFR – Pin Change Interrupt Flag Register” on page 116.

Updated code example in “USART Initialization” on page 210.

Updated Figure 26-8 on page 284.

10.

Updated “DC Characteristics” on page 367.

12.5 Rev. 2549J-09/06

Updated “” on page 46.

Updated code example in “Moving Interrupts Between Application and Boot Section” on page

109.

Updated “Timer/Counter Prescaler” on page 186.

Updated “Device Identification Register” on page 303.

Updated “Signature Bytes” on page 338.

Updated “Instruction Set Summary” on page 17.

12.6 Rev. 2549I-07/06

Added “Data Retention” on page 11.

Updated Table 16-3 on page 129, Table 16-6 on page 130, Table 16-8 on page 131, Table 17-2

on page 148, Table 17-4 on page 159, Table 17-5 on page 160, Table 20-3 on page 187, Table

20-6 on page 188 and Table 20-8 on page 189.

Updated “Fast PWM Mode” on page 150.

12.7 Rev. 2549H-06/06

Updated “” on page 46.

Updated “OSCCAL – Oscillator Calibration Register” on page 50.

Added Table 31-1 on page 371.

2549NS–AVR–05/11

1...34 35 363738 39 40

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