ATMEGA48PA-MUR Atmel, ATMEGA48PA-MUR Datasheet - Page 561
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ATMEGA48PA-MUR
Manufacturer Part Number
ATMEGA48PA-MUR
Description
MCU AVR 4KB FLASH 20MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48PA-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
23
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 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
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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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