attiny25v ATMEL Corporation, attiny25v Datasheet - Page 228

• Manufacturer Part Number: attiny25v
• Description: Microcontroller With 2/4/8k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

iv
ATtiny25/45/85
19 Self-Programming the Flash ............................................................... 145
20 Memory Programming ......................................................................... 151
21 Electrical Characteristics .................................................................... 166
22 Typical Characteristics ........................................................................ 176
18.6
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.1
20.2
20.3
20.4
20.5
20.6
20.7
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.1
22.2
22.3
22.4
22.5
Register Description ......................................................................................144
Performing Page Erase by SPM ....................................................................145
Filling the Temporary Buffer (Page Loading) .................................................145
Performing a Page Write ...............................................................................146
Addressing the Flash During Self-Programming ...........................................146
EEPROM Write Prevents Writing to SPMCSR ..............................................147
Reading Lock, Fuse and Signature Data from Software ...............................147
Preventing Flash Corruption ..........................................................................149
Programming Time for Flash when Using SPM ............................................149
Register Description ......................................................................................149
Program And Data Memory Lock Bits ...........................................................151
Fuse Bytes .....................................................................................................152
Device Signature Imprint Table .....................................................................153
Page Size ......................................................................................................154
Serial Downloading ........................................................................................155
High-voltage Serial Programming ..................................................................158
High-voltage Serial Programming Algorithm .................................................159
Absolute Maximum Ratings* .........................................................................166
DC Characteristics .........................................................................................166
Speed Grades ...............................................................................................168
Clock Characteristics .....................................................................................169
System and Reset Characteristics ................................................................170
Brown-Out Detection .....................................................................................171
ADC Characteristics – Preliminary ................................................................172
Serial Programming Characteristics ..............................................................174
High-voltage Serial Programming Characteristics .........................................175
Active Supply Current ....................................................................................176
Idle Supply Current ........................................................................................179
Supply Current of I/O modules ......................................................................181
Power-down Supply Current ..........................................................................182
Pin Pull-up .....................................................................................................183
2586K–AVR–01/08