ATmega168P Atmel Corporation, ATmega168P Datasheet - Page 417

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ATmega168P

Manufacturer Part Number
ATmega168P
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168P

Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
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
Yes
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
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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8025M–AVR–6/11
22 2-wire Serial Interface .......................................................................... 212
23 Analog Comparator ............................................................................. 244
24 Analog-to-Digital Converter ................................................................ 248
25 debugWIRE On-chip Debug System .................................................. 265
21.5Frame Formats ....................................................................................................204
21.6Data Transfer ......................................................................................................206
21.7AVR USART MSPIM vs. AVR SPI ......................................................................208
21.8Register Description ............................................................................................209
22.1Features ..............................................................................................................212
22.22-wire Serial Interface Bus Definition ..................................................................212
22.3Data Transfer and Frame Format ........................................................................214
22.4Multi-master Bus Systems, Arbitration and Synchronization ...............................216
22.5Overview of the TWI Module ...............................................................................219
22.6Using the TWI ......................................................................................................221
22.7Transmission Modes ...........................................................................................225
22.8Multi-master Systems and Arbitration ..................................................................238
22.9Register Description ............................................................................................239
23.1Overview .............................................................................................................244
23.2Analog Comparator Multiplexed Input .................................................................244
23.3Register Description ............................................................................................245
24.1Features ..............................................................................................................248
24.2Overview .............................................................................................................248
24.3Starting a Conversion ..........................................................................................250
24.4Prescaling and Conversion Timing ......................................................................251
24.5Changing Channel or Reference Selection .........................................................253
24.6ADC Noise Canceler ...........................................................................................254
24.7ADC Conversion Result ......................................................................................259
24.8Temperature Measurement .................................................................................259
24.9Register Description ............................................................................................260
25.1Features ..............................................................................................................265
25.2Overview .............................................................................................................265
25.3Physical Interface ................................................................................................265
25.4Software Break Points .........................................................................................266
25.5Limitations of debugWIRE ...................................................................................266
25.6Register Description ............................................................................................266
ATmega48P/88P/168P
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