ATMEGA88P-20MUR Atmel, ATMEGA88P-20MUR Datasheet - Page 416

• Manufacturer Part Number: ATMEGA88P-20MUR
• Description: MCU AVR 8KB FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA88P-20MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8025L–AVR–7/10
18 SPI – Serial Peripheral Interface ......................................................... 164
19 USART0 ................................................................................................. 174
20 USART in SPI Mode ............................................................................. 202
17.3Timer/Counter Clock Sources .............................................................................143
17.4Counter Unit ........................................................................................................143
17.5Output Compare Unit ..........................................................................................144
17.6Compare Match Output Unit ................................................................................146
17.7Modes of Operation .............................................................................................147
17.8Timer/Counter Timing Diagrams .........................................................................151
17.9Asynchronous Operation of Timer/Counter2 .......................................................153
17.10Timer/Counter Prescaler ...................................................................................154
17.11Register Description ..........................................................................................156
18.1Features ..............................................................................................................164
18.2Overview .............................................................................................................164
18.3SS Pin Functionality ............................................................................................169
18.4Data Modes .........................................................................................................169
18.5Register Description ............................................................................................171
19.1Features ..............................................................................................................174
19.2Overview .............................................................................................................174
19.3Clock Generation .................................................................................................175
19.4Frame Formats ....................................................................................................178
19.5USART Initialization ............................................................................................180
19.6Data Transmission – The USART Transmitter ....................................................181
19.7Data Reception – The USART Receiver .............................................................184
19.8Asynchronous Data Reception ............................................................................188
19.9Multi-processor Communication Mode ................................................................191
19.10Register Description ..........................................................................................193
19.11Examples of Baud Rate Setting ........................................................................197
20.1Features ..............................................................................................................202
20.2Overview .............................................................................................................202
20.3Clock Generation .................................................................................................202
20.4SPI Data Modes and Timing ...............................................................................203
20.5Frame Formats ....................................................................................................204
20.6Data Transfer ......................................................................................................206
20.7AVR USART MSPIM vs. AVR SPI ......................................................................208
ATmega48P/88P/168P
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