ATmega168A Atmel Corporation, ATmega168A Datasheet - Page 563

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ATmega168A

Manufacturer Part Number
ATmega168A
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega168A

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
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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8271D–AVR–05/11
22 2-wire Serial Interface .......................................................................... 216
23 Analog Comparator ............................................................................. 248
24 Analog-to-Digital Converter ................................................................ 252
25 debugWIRE On-chip Debug System .................................................. 269
21.5Frame Formats ....................................................................................................208
21.6Data Transfer ......................................................................................................210
21.7AVR USART MSPIM vs. AVR SPI ......................................................................212
21.8Register Description ............................................................................................213
22.1Features ..............................................................................................................216
22.22-wire Serial Interface Bus Definition ..................................................................216
22.3Data Transfer and Frame Format ........................................................................218
22.4Multi-master Bus Systems, Arbitration and Synchronization ...............................220
22.5Overview of the TWI Module ...............................................................................223
22.6Using the TWI ......................................................................................................225
22.7Transmission Modes ...........................................................................................229
22.8Multi-master Systems and Arbitration ..................................................................242
22.9Register Description ............................................................................................243
23.1Overview .............................................................................................................248
23.2Analog Comparator Multiplexed Input .................................................................248
23.3Register Description ............................................................................................249
24.1Features ..............................................................................................................252
24.2Overview .............................................................................................................252
24.3Starting a Conversion ..........................................................................................254
24.4Prescaling and Conversion Timing ......................................................................255
24.5Changing Channel or Reference Selection .........................................................257
24.6ADC Noise Canceler ...........................................................................................258
24.7ADC Conversion Result ......................................................................................263
24.8Temperature Measurement .................................................................................263
24.9Register Description ............................................................................................264
25.1Features ..............................................................................................................269
25.2Overview .............................................................................................................269
25.3Physical Interface ................................................................................................269
25.4Software Break Points .........................................................................................270
25.5Limitations of debugWIRE ...................................................................................270
25.6Register Description ............................................................................................270
ATmega48A/PA/88A/PA/168A/PA/328/P
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