ATmega64A datasheet(390/392 Pages) ATMEL

390 / 392 page

8160C–AVR–07/09

ATmega64A

Memory Programming ......................................................................... 295

27.1

Program and Data Memory Lock Bits ............................................................295

27.2

Fuse Bits ........................................................................................................296

27.3

Signature Bytes .............................................................................................298

27.4

Calibration Byte .............................................................................................298

27.5

Parallel Programming Parameters, Pin Mapping, and Commands ...............298

27.6

Parallel Programming ....................................................................................300

27.7

Serial Downloading ........................................................................................309

27.8

SPI Serial Programming Pin Mapping ...........................................................310

27.9

Programming Via the JTAG Interface ............................................................314

Electrical Characteristics .................................................................... 327

28.1

Absolute Maximum Ratings* .........................................................................327

28.2

DC Characteristics .........................................................................................327

28.3

Speed Grades ...............................................................................................329

28.4

Clock Characteristics .....................................................................................329

28.5

System and Reset Characteristics ................................................................330

28.6

Two-wire Serial Interface Characteristics ......................................................331

28.7

SPI Timing Characteristics ............................................................................333

28.8

ADC Characteristics ......................................................................................335

28.9

External Data Memory Timing .......................................................................337

Typical Characteristics ........................................................................ 343

29.1

Active Supply Current ....................................................................................343

29.2

Idle Supply Current ........................................................................................347

29.3

Power-Down Supply Current .........................................................................350

29.4

Power-Save Supply Current ..........................................................................351

29.5

Standby Supply Current ................................................................................352

29.6

Pin Pull-up .....................................................................................................353

29.7

Pin Driver Strength ........................................................................................356

29.8

Pin Thresholds and Hysteresis ......................................................................358

29.9

BOD Thresholds and Analog Comparator Offset ..........................................361

29.10

Internal Oscillator Speed ...............................................................................362

29.11

Current Consumption of Peripheral Units ......................................................369

29.12

Current Consumption in Reset and Reset Pulse width .................................371

Instruction Set Summary ..................................................................... 376

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