Datasheet

iv
ATtiny25/45/85 [DATASHEET]
2586Q–AVR–08/2013
19.1 Performing Page Erase by SPM ....................................................................141
19.2 Filling the Temporary Buffer (Page Loading) .................................................141
19.3 Performing a Page Write ...............................................................................142
19.4 Addressing the Flash During Self-Programming ...........................................142
19.5 EEPROM Write Prevents Writing to SPMCSR ..............................................142
19.6 Reading Lock, Fuse and Signature Data from Software ...............................143
19.7 Preventing Flash Corruption ..........................................................................144
19.8 Programming Time for Flash when Using SPM .............................................145
19.9 Register Description ......................................................................................145
20 Memory Programming .........................................................................147
20.1 Program And Data Memory Lock Bits ...........................................................147
20.2 Fuse Bytes .....................................................................................................148
20.3 Device Signature Imprint Table .....................................................................149
20.4 Page Size ......................................................................................................150
20.5 Serial Downloading ........................................................................................151
20.6 High-voltage Serial Programming ..................................................................155
20.7 High-voltage Serial Programming Algorithm ..................................................155
21 Electrical Characteristics ....................................................................161
21.1 Absolute Maximum Ratings* .........................................................................161
21.2 DC Characteristics .........................................................................................161
21.3 Speed ............................................................................................................163
21.4 Clock Characteristics .....................................................................................164
21.5 System and Reset Characteristics ................................................................165
21.6 Brown-Out Detection .....................................................................................166
21.7 ADC Characteristics ......................................................................................167
21.8 Serial Programming Characteristics ..............................................................170
21.9 High-voltage Serial Programming Characteristics .........................................171
22 Typical Characteristics ........................................................................172
22.1 Active Supply Current ....................................................................................172
22.2 Idle Supply Current ........................................................................................175
22.3 Supply Current of I/O modules ......................................................................177
22.4 Power-down Supply Current ..........................................................................178
22.5 Pin Pull-up .....................................................................................................179
22.6 Pin Driver Strength ........................................................................................182
22.7 Pin Threshold and Hysteresis ........................................................................186
22.8 BOD Threshold ..............................................................................................189