ATMEGA325-16AUR Atmel, ATMEGA325-16AUR Datasheet - Page 358
ATMEGA325-16AUR
Manufacturer Part Number
ATMEGA325-16AUR
Description
MCU AVR 32K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA325-16AUR.pdf
(362 pages)
Specifications of ATMEGA325-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
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 ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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2570M–AVR–04/11
18 SPI – Serial Peripheral Interface ......................................................... 148
19 USART0 ................................................................................................. 157
20 USI – Universal Serial Interface .......................................................... 185
21 Analog Comparator ............................................................................. 197
22 Analog to Digital Converter ................................................................ 201
17.8
17.9
17.10
17.11
18.1
18.2
18.3
18.4
18.5
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
19.10
19.11
20.1
20.2
20.3
20.4
21.1
21.2
22.1
22.2
22.3
Timer/Counter Timing Diagrams ...................................................................139
Asynchronous Operation of Timer/Counter2 .................................................141
Timer/Counter Prescaler ...............................................................................142
Register Description ......................................................................................143
Features ........................................................................................................148
Overview ........................................................................................................148
SS Pin Functionality ......................................................................................152
Data Modes ...................................................................................................153
Register Description ......................................................................................154
Features ........................................................................................................157
Overview ........................................................................................................157
Clock Generation ...........................................................................................159
Frame Formats ..............................................................................................162
USART Initialization .......................................................................................163
Data Transmission – The USART Transmitter ..............................................165
Data Reception – The USART Receiver .......................................................167
Asynchronous Data Reception ......................................................................171
Multi-processor Communication Mode ..........................................................174
Examples of Baud Rate Setting .....................................................................176
Register Description ......................................................................................179
Overview ........................................................................................................185
Functional Descriptions .................................................................................186
Alternative USI Usage ...................................................................................192
Register Descriptions ....................................................................................192
Analog Comparator Multiplexed Input ...........................................................198
Register Description ......................................................................................198
Features ........................................................................................................201
Operation .......................................................................................................202
Starting a Conversion ....................................................................................203
ATmega325/3250/645/6450
iv
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