ATMEGA324PA-MUR Atmel, ATMEGA324PA-MUR Datasheet - Page 464

• Manufacturer Part Number: ATMEGA324PA-MUR
• Description: MCU AVR 32KB FLASH 20 MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA324PA-MUR

• 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: 32
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 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

8152G–AVR–11/09
17 SPI – Serial Peripheral Interface ......................................................... 163
18 USART ................................................................................................... 173
19 USART in SPI Mode ............................................................................. 200
20 2-wire Serial Interface .......................................................................... 209
16.8Timer/Counter Timing Diagrams .........................................................................150
16.9Asynchronous Operation of Timer/Counter2 .......................................................152
16.10Timer/Counter Prescaler ...................................................................................154
16.11Register Description ..........................................................................................154
17.1Features ..............................................................................................................163
17.2Overview .............................................................................................................163
17.3SS Pin Functionality ............................................................................................168
17.4Data Modes .........................................................................................................168
17.5Register Description ............................................................................................170
18.1Features ..............................................................................................................173
18.2USART1 and USART0 ........................................................................................173
18.3Overview .............................................................................................................173
18.4Clock Generation .................................................................................................174
18.5Frame Formats ....................................................................................................177
18.6USART Initialization ............................................................................................178
18.7Data Transmission – The USART Transmitter ....................................................179
18.8Data Reception – The USART Receiver .............................................................182
18.9Asynchronous Data Reception ............................................................................186
18.10Multi-processor Communication Mode ..............................................................189
18.11Register Description ..........................................................................................191
18.12Examples of Baud Rate Setting ........................................................................196
19.1Features ..............................................................................................................200
19.2Overview .............................................................................................................200
19.3Clock Generation .................................................................................................200
19.4SPI Data Modes and Timing ...............................................................................201
19.5Frame Formats ....................................................................................................201
19.6Data Transfer ......................................................................................................203
19.7AVR USART MSPIM vs. AVR SPI ......................................................................205
19.8Register Description ............................................................................................206
20.1Features ..............................................................................................................209
20.22-wire Serial Interface Bus Definition ..................................................................209
ATmega164PA/324PA/644PA/1284P
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