ATMEGA640 datasheet(426/436 Pages) MICROCHIP

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426

ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET]

DS40002211A

38.16 Rev. 2549C-09/05

38.17 Rev. 2549B-05/05

38.18 Rev. 2549A-03/05

Updated Note for Table 4 on page 42, Table 13-15 on page 82, Table 26-3 on page 281 and Table 26-6

on page 287.

10.

Updated Table 31-9 on page 365 and Table 31-10 on page 366.

11.

Updated “Filling the Temporary Buffer (Page Loading)” on page 315.

12.

Updated “Typical Characteristics” on page 373.

13.

Updated “Packaging Information” on page 412.

14.

Updated “Errata” on page 416.

Updated Speed Grade in section “Features” on page 1.

Added “Resources” on page 10.

Updated “SPI – Serial Peripheral Interface” on page 190. In Slave mode, low and high period SPI clock

must be larger than 2 CPU cycles.

Updated “Bit Rate Generator Unit” on page 242.

Updated “Maximum speed vs. VCC” on page 373.

Updated “Ordering Information” on page 407.

Updated “Packaging Information” on page 412. Package 64M1 replaced by 64M2.

Updated “Errata” on page 416.

JTAG ID/Signature for ATmega640 updated: 0x9608.

Updated Table 13-7 on page 78.

Updated “Serial Programming Instruction set” on page 340.

Updated “Errata” on page 416.

Initial version.

ATMEGA640 Datasheet(PDF) 426 Page - Microchip Technology