ATmega8A Atmel Corporation, ATmega8A Datasheet - Page 306

• Manufacturer Part Number: ATmega8A
• Manufacturer: Atmel Corporation

Specifications of ATmega8A

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Pwm Channels: 3
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8159D–AVR–02/11
23 Boot Loader Support – Read-While-Write Self-Programming ......... 212
24 Memory Programming ......................................................................... 226
25 Electrical Characteristics .................................................................... 244
26 Typical Characteristics ........................................................................ 252
22.8
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
24.9
25.1
25.2
25.3
25.4
25.5
25.6
25.7
25.8
26.1
26.2
26.3
26.4
Register Description ......................................................................................208
Features ........................................................................................................212
Overview ........................................................................................................212
Application and Boot Loader Flash Sections .................................................212
Read-While-Write and No Read-While-Write Flash Sections ........................213
Boot Loader Lock Bits ...................................................................................215
Entering the Boot Loader Program ................................................................216
Addressing the Flash During Self-Programming ...........................................217
Self-Programming the Flash ..........................................................................218
Register Description ......................................................................................224
Program And Data Memory Lock Bits ...........................................................226
Fuse Bits ........................................................................................................227
Signature Bytes .............................................................................................228
Calibration Byte .............................................................................................228
Page Size ......................................................................................................229
Parallel Programming Parameters, Pin Mapping, and Commands ...............229
Parallel Programming ....................................................................................231
Serial Downloading ........................................................................................239
Serial Programming Pin Mapping ..................................................................239
Absolute Maximum Ratings* .........................................................................244
DC Characteristics .........................................................................................244
Speed Grades ...............................................................................................246
Clock Characteristics .....................................................................................246
System and Reset Characteristics ................................................................247
Two-wire Serial Interface Characteristics ......................................................248
SPI Timing Characteristics ............................................................................249
ADC Characteristics ......................................................................................251
Active Supply Current ....................................................................................252
Idle Supply Current ........................................................................................256
Power-down Supply Current ..........................................................................259
Power-save Supply Current ...........................................................................260
ATmega8A
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