ATmega64A
27 Memory Programming ......................................................................... 295
27.1
27.2
27.3
27.4
27.5
27.6
27.7
27.8
27.9
Program and Data Memory Lock Bits ............................................................295
Fuse Bits ........................................................................................................296
Signature Bytes .............................................................................................298
Calibration Byte .............................................................................................298
Parallel Programming Parameters, Pin Mapping, and Commands ...............298
Parallel Programming ....................................................................................300
Serial Downloading ........................................................................................309
SPI Serial Programming Pin Mapping ...........................................................310
Programming Via the JTAG Interface ............................................................314
28 Electrical Characteristics .................................................................... 327
28.1
28.2
28.3
28.4
28.5
28.6
28.7
28.8
28.9
Absolute Maximum Ratings* .........................................................................327
DC Characteristics .........................................................................................327
Speed Grades ...............................................................................................329
Clock Characteristics .....................................................................................329
System and Reset Characteristics ................................................................330
Two-wire Serial Interface Characteristics ......................................................331
SPI Timing Characteristics ............................................................................333
ADC Characteristics ......................................................................................335
External Data Memory Timing .......................................................................337
29 Typical Characteristics ........................................................................ 343
29.1
29.2
29.3
29.4
29.5
29.6
29.7
29.8
29.9
Active Supply Current ....................................................................................343
Idle Supply Current ........................................................................................347
Power-Down Supply Current .........................................................................350
Power-Save Supply Current ..........................................................................351
Standby Supply Current ................................................................................352
Pin Pull-up .....................................................................................................353
Pin Driver Strength ........................................................................................356
Pin Thresholds and Hysteresis ......................................................................358
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
30 Register Summary ............................................................................... 373
31 Instruction Set Summary ..................................................................... 376
vi
8160C–AVR–07/09
ATMEL [ ATMEL ]
