ATMEGA324P-15AZ Atmel, ATMEGA324P-15AZ Datasheet - Page 372
ATMEGA324P-15AZ
Manufacturer Part Number
ATMEGA324P-15AZ
Description
MCU AVR 32K FLASH 15MHZ 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA324P-15AZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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ATmega164P/324P/644P
16 SPI – Serial Peripheral Interface ......................................................... 161
17 USART ................................................................................................... 171
18 USART in SPI Mode ............................................................................. 199
19 2-wire Serial Interface .......................................................................... 209
16.1
16.2
16.3
16.4
16.5
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
17.12
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
19.1
19.2
19.3
19.4
19.5
19.6
Features ........................................................................................................161
Overview ........................................................................................................161
SS Pin Functionality ......................................................................................166
Data Modes ...................................................................................................166
Register Description ......................................................................................168
Features ........................................................................................................171
USART1 and USART0 ..................................................................................171
Overview ........................................................................................................171
Clock Generation ...........................................................................................173
Frame Formats ..............................................................................................176
USART Initialization .......................................................................................177
Data Transmission – The USART Transmitter ..............................................178
Data Reception – The USART Receiver .......................................................181
Asynchronous Data Reception ......................................................................185
Multi-processor Communication Mode ..........................................................188
Register Description ......................................................................................190
Examples of Baud Rate Setting .....................................................................195
Features ........................................................................................................199
Overview ........................................................................................................199
Clock Generation ...........................................................................................199
SPI Data Modes and Timing ..........................................................................200
Frame Formats ..............................................................................................200
Data Transfer .................................................................................................203
AVR USART MSPIM vs. AVR SPI ................................................................205
Register Description ......................................................................................206
Features ........................................................................................................209
2-wire Serial Interface Bus Definition ............................................................209
Data Transfer and Frame Format ..................................................................210
Multi-master Bus Systems, Arbitration and Synchronization .........................213
Overview of the TWI Module .........................................................................215
Using the TWI ................................................................................................217
7674F–AVR–09/09
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