ATMEGA325_14 Datasheet, PDF (360/362 Pages) ATMEL Corporation – High Endurance Non-volatile Memory Segments

2570N–AVR–05/11
ATmega325/3250/645/6450
26.9 Register Description ......................................................................................263
27 Memory Programming ......................................................................... 265
27.1 Program And Data Memory Lock Bits ...........................................................265
27.2 Fuse Bits ........................................................................................................266
27.3 Signature Bytes .............................................................................................268
27.4 Calibration Byte .............................................................................................268
27.5 Parallel Programming Parameters, Pin Mapping, and Commands ...............268
27.6 Parallel Programming ....................................................................................271
27.7 Serial Downloading ........................................................................................280
27.8 Programming via the JTAG Interface ............................................................284
28 Electrical Characteristics .................................................................... 297
28.1 Absolute Maximum Ratings* .........................................................................297
28.2 DC Characteristics .........................................................................................297
28.3 Speed Grades ...............................................................................................299
28.4 Clock Characteristics .....................................................................................300
28.5 System and Reset Characteristics ................................................................301
28.6 SPI Timing Characteristics ............................................................................302
28.7 ADC ...............................................................................................................304
29 Typical Characteristics ....................................................................... 306
29.1 Active Supply Current ....................................................................................306
29.2 Idle Supply Current ........................................................................................309
29.3 Supply Current of I/O modules ......................................................................311
29.4 Power-down Supply Current ..........................................................................312
29.5 Power-save Supply Current ...........................................................................313
29.6 Standby Supply Current ................................................................................313
29.7 Pin Pull-up .....................................................................................................314
29.8 Pin Driver Strength ........................................................................................317
29.9 Pin Thresholds and hysteresis ......................................................................323
29.10 BOD Thresholds and Analog Comparator Offset ..........................................326
29.11 Internal Oscillator Speed ...............................................................................329
29.12 Current Consumption of Peripheral Units ......................................................331
29.13 Current Consumption in Reset and Reset Pulsewidth ..................................334
30 Register Summary ............................................................................... 336
31 Instruction Set Summary .................................................................... 340
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