ATmega168P

Manufacturer Part NumberATmega168P
ManufacturerAtmel Corporation
ATmega168P datasheets
 

Specifications of ATmega168P

Flash (kbytes)16 KbytesPin Count32
Max. Operating Frequency20 MHzCpu8-bit AVR
# Of Touch Channels16Hardware Qtouch AcquisitionNo
Max I/o Pins23Ext Interrupts24
Usb SpeedNoUsb InterfaceNo
Spi2Twi (i2c)1
Uart1Graphic LcdNo
Video DecoderNoCamera InterfaceNo
Adc Channels8Adc Resolution (bits)10
Adc Speed (ksps)15Analog Comparators1
Resistive Touch ScreenNoTemp. SensorYes
Crypto EngineNoSram (kbytes)1
Eeprom (bytes)512Self Program MemoryYES
Dram MemoryNoNand InterfaceNo
PicopowerYesTemp. Range (deg C)-40 to 85
I/o Supply Class1.8 to 5.5Operating Voltage (vcc)1.8 to 5.5
FpuNoMpu / Mmuno / no
Timers3Output Compare Channels6
Input Capture Channels1Pwm Channels6
32khz RtcYesCalibrated Rc OscillatorYes
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18 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 142
19 SPI – Serial Peripheral Interface ......................................................... 164
20 USART0 ................................................................................................. 174
21 USART in SPI Mode ............................................................................. 202
ATmega48P/88P/168P
iv
18.1Features ..............................................................................................................142
18.2Overview .............................................................................................................142
18.3Timer/Counter Clock Sources .............................................................................143
18.4Counter Unit ........................................................................................................143
18.5Output Compare Unit ..........................................................................................144
18.6Compare Match Output Unit ................................................................................146
18.7Modes of Operation .............................................................................................147
18.8Timer/Counter Timing Diagrams .........................................................................151
18.9Asynchronous Operation of Timer/Counter2 .......................................................153
18.10Timer/Counter Prescaler ...................................................................................154
18.11Register Description ..........................................................................................156
19.1Features ..............................................................................................................164
19.2Overview .............................................................................................................164
19.3SS Pin Functionality ............................................................................................169
19.4Data Modes .........................................................................................................169
19.5Register Description ............................................................................................171
20.1Features ..............................................................................................................174
20.2Overview .............................................................................................................174
20.3Clock Generation .................................................................................................175
20.4Frame Formats ....................................................................................................178
20.5USART Initialization ............................................................................................180
20.6Data Transmission – The USART Transmitter ....................................................181
20.7Data Reception – The USART Receiver .............................................................184
20.8Asynchronous Data Reception ............................................................................188
20.9Multi-processor Communication Mode ................................................................191
20.10Register Description ..........................................................................................193
20.11Examples of Baud Rate Setting ........................................................................197
21.1Features ..............................................................................................................202
21.2Overview .............................................................................................................202
21.3Clock Generation .................................................................................................202
21.4SPI Data Modes and Timing ...............................................................................203
8025M–AVR–6/11