ATMEGA8_08 Datasheet, PDF (306/308 Pages) ATMEL Corporation – 8-bit with 8K Bytes In-System Programmable Flash

ADC Noise Canceler 201
ADC Conversion Result 205
Boot Loader Support – Read-While-Write Self-Programming 209
Boot Loader Features 209
Application and Boot Loader Flash Sections 209
Read-While-Write and No Read-While-Write Flash Sections 209
Boot Loader Lock Bits 211
Entering the Boot Loader Program 212
Addressing the Flash During Self-Programming 214
Self-Programming the Flash 215
Memory Programming 222
Program And Data Memory Lock Bits 222
Fuse Bits 223
Signature Bytes 225
Calibration Byte 225
Page Size 225
Parallel Programming Parameters, Pin Mapping, and Commands 226
Parallel Programming 228
Serial Downloading 237
Serial Programming Pin Mapping 237
Electrical Characteristics 242
Absolute Maximum Ratings* 242
DC Characteristics 242
External Clock Drive Waveforms 244
External Clock Drive 244
Two-wire Serial Interface Characteristics 245
SPI Timing Characteristics 246
ADC Characteristics 248
ATmega8 Typical Characteristics 249
Register Summary 287
Instruction Set Summary 289
Ordering Information 292
Packaging Information 293
32A 293
28P3 294
32M1-A 295
Errata 296
iv ATmega8(L)
2486T–AVR–05/08