ATmega88 Atmel Corporation, ATmega88 Datasheet - Page 373
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ATmega88
Manufacturer Part Number
ATmega88
Description
Manufacturer
Atmel Corporation
Specifications of ATmega88
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
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
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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2545T–AVR–05/11
22 2-wire serial interface .......................................................................... 209
23 Analog comparator .............................................................................. 241
24 Analog-to-digital converter ................................................................. 244
25 debugWIRE on-chip debug system .................................................... 260
26 Self-programming the flash, Atmel ATmega48 ................................. 262
21.8Register description .............................................................................................206
22.1Features ..............................................................................................................209
22.22-wire serial interface bus definition ....................................................................209
22.3Data transfer and frame format ...........................................................................210
22.4Multi-master bus systems, arbitration and synchronization .................................213
22.5Overview of the TWI module ...............................................................................216
22.6Using the TWI ......................................................................................................218
22.7Transmission modes ...........................................................................................222
22.8Multi-master systems and arbitration ...................................................................235
22.9Register description .............................................................................................236
23.1Overview .............................................................................................................241
23.2Analog comparator multiplexed input ..................................................................241
23.3Register description .............................................................................................242
24.1Features ..............................................................................................................244
24.2Overview .............................................................................................................244
24.3Starting a conversion ...........................................................................................246
24.4Prescaling and conversion timing ........................................................................247
24.5Changing channel or reference selection ............................................................249
24.6ADC noise canceler .............................................................................................250
24.7ADC conversion result .........................................................................................255
24.8Register description .............................................................................................255
25.1Features ..............................................................................................................260
25.2Overview .............................................................................................................260
25.3Physical interface ................................................................................................260
25.4Software break points ..........................................................................................261
25.5Limitations of debugWIRE ...................................................................................261
25.6Register description .............................................................................................261
26.1Overview .............................................................................................................262
26.2Addressing the flash during self-programming ....................................................263
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