ATMEGA168PA-PU Atmel, ATMEGA168PA-PU Datasheet - Page 561

• Manufacturer Part Number: ATMEGA168PA-PU
• Description: MCU, 8BIT, AVR, 16K FLASH, 28PDIP
• Manufacturer: Atmel

Specifications of ATMEGA168PA-PU

• Controller Family/series: Atmega
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 20MHz
• No.: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 16KB
• Oscillator Type: External, Internal
• Rohs Compliant: Yes

8271C–AVR–08/10
18 SPI – Serial Peripheral Interface ......................................................... 167
19 USART0 ................................................................................................. 177
20 USART in SPI Mode ............................................................................. 205
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
17.1Features ..............................................................................................................145
17.2Overview .............................................................................................................145
17.3Timer/Counter Clock Sources .............................................................................146
17.4Counter Unit ........................................................................................................146
17.5Output Compare Unit ..........................................................................................147
17.6Compare Match Output Unit ................................................................................149
17.7Modes of Operation .............................................................................................150
17.8Timer/Counter Timing Diagrams .........................................................................154
17.9Asynchronous Operation of Timer/Counter2 .......................................................156
17.10Timer/Counter Prescaler ...................................................................................157
17.11Register Description ..........................................................................................159
18.1Features ..............................................................................................................167
18.2Overview .............................................................................................................167
18.3SS Pin Functionality ............................................................................................172
18.4Data Modes .........................................................................................................172
18.5Register Description ............................................................................................174
19.1Features ..............................................................................................................177
19.2Overview .............................................................................................................177
19.3Clock Generation .................................................................................................178
19.4Frame Formats ....................................................................................................181
19.5USART Initialization ............................................................................................183
19.6Data Transmission – The USART Transmitter ....................................................184
19.7Data Reception – The USART Receiver .............................................................187
19.8Asynchronous Data Reception ............................................................................191
19.9Multi-processor Communication Mode ................................................................194
19.10Examples of Baud Rate Setting ........................................................................195
19.11Register Description ..........................................................................................200
20.1Features ..............................................................................................................205
20.2Overview .............................................................................................................205
20.3Clock Generation .................................................................................................205
20.4SPI Data Modes and Timing ...............................................................................206
20.5Frame Formats ....................................................................................................207
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