ATmega644PA datasheet(459/468 Pages) ATMEL

459 / 468 page

459

8152G–AVR–11/09

ATmega164PA/324PA/644PA/1284P

34. 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.

34.1

Rev. 8152G- 11/09

34.2

Rev. 8152F- 10/09

34.3

Rev. 8152E- 08/09

34.4

Rev. 8152D- 08/09

Added ATmega1284P device and Updated the datasheet.

Updated Assembly code example in

”Watchdog Timer” on page 56.

Added Table on page 35, Capacitance for Low-frequency Crystal Oscillator.

Updated ordering information for 324PA

Removed ”RAMPZ – Extended Z-pointer Register for ELPM/SPM” on page 15.

Updated ”EEARH and EEARL – The EEPROM Address Register” on page 24.

Updated ”Addressing the Flash During Self-Programming” on page 283, by removing RAMPZ.

Updated ”Serial Programming Pin Mapping” on page 311.

Updated ”Register Summary” on page 442, by removing RAMPZ register.

Updated ”Instruction Set Summary” on page 446, by removing ELPM mnemonics.

Updated ATmega164PA/324PA ”Ordering Information” on page 449, MCU replaced by MCH.

Updated ”Ordering Information” for ATmega644PA device on page 424.

Updated ”ATmega644PA Typical Characteristics” on page 390

ATmega644PA Datasheet(PDF) 459 Page - ATMEL Corporation